1. Pressure and Depth Measurements on Gamin Devices - Connect IQ App Development Discussion - Connect IQ - Garmin Forums
   URL: https://forums.garmin.com/developer/connect-iq/f/discussion/6354/pressure-and-depth-measurements-on-gamin-devices
   Pressure and Depth Measurements on Gamin Devices - Connect IQ App Development Discussion - Connect IQ - Garmin Forums

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# Pressure and Depth Measurements on Gamin Devices

Here is a video and some insights on my experience in working with pressure and depth measurements on Garmin devices. My diving apps are available at www.diveiq.com https://www.youtube.com/watch?v=rt-yz88q4LE&t=41s This video shows depth being computed using three different methods for obtaining pressure on Garmin devices.1) Raw ambient pressure: As measured by the pressure sensor.2) Ambient pressure: A smoothed, two-stage filtered pressure provided by Garmin which reduces noise and instantaneous variation.3) Altitude pressure: Pressure derived from the altitude .Many Garmin watches have a pressure sensor that Garmin uses internally to compute altitude. This sensor's data was only available internally to Garmin software and not made available to third party developers. Third party apps such as DiveIQ's Dive Computer and Freedive apps were forced to convert altitude back to pressure. This reverse conversion works pretty accurately but introduces some lag (delay) because it takes a few seconds for pressure changes to reflect on the altitude. Applications deriving pressure from altitude also need to be capable of coping with altitude decalibration because the altitude measurement provided by Garmin does not solely depend on pressure. The altitude also depends on multiple user settings that Garmin uses to determine if changes in pressure are due to changes in weather or changes in altitude. GPS measurements and manual calibrations are also taken into account. Garmin now provides two pressure measurements. A "raw ambient pressure" value taken directly from the sensor and an "ambient pressure" value smoothed by a two-stage filter that reduces noise and instantaneous variation. This video shows shows the response time and accuracy when using each pressure measurement method to compute depth in meters.

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2. freediving app from descent to fenix 5 - fēnix 5 Series - Outdoor Recreation Archive - Garmin Forums
   URL: https://forums.garmin.com/outdoor-recreation/outdoor-recreation-archive/f/fenix-5-series/244188/freediving-app-from-descent-to-fenix-5
   freediving app from descent to fenix 5 - fēnix 5 Series - Outdoor Recreation Archive - Garmin Forums

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# freediving app from descent to fenix 5

Hello,

Is it a way of installing the freediving app installed in the garmin descent on the fenix 5x plus ?

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- It's part of the firmware and there's no way to install it. You won't find any CIQ apps for it, and there's also differences in the HW as the fenix 5x isn't set up for diving (the pressure sensor…

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go to Connect IQ and check compatible devices for that app, if 5x plus is not listed there, then I think the only way would be communication with developer.

I think the apnea app is implanted by default in the Descent. It is not available on the Connect IQ website. My question was if there was a way of extracting it and install it on the Fenix.

It's part of the firmware and there's no way to install it. You won't find any CIQ apps for it, and there's also differences in the HW as the fenix 5x isn't set up for diving (the pressure sensor only goes to 20 feet, I believe.

Ok thanks for the info. My next question would be… Is there anyway I could install the firmware of the Descent on the Fenix 5X?

3. Freediving Depth Data Field - Connect IQ App Development Discussion - Connect IQ - Garmin Forums
   URL: https://forums.garmin.com/developer/connect-iq/f/discussion/4028/freediving-depth-data-field
   Freediving Depth Data Field - Connect IQ App Development Discussion - Connect IQ - Garmin Forums

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# Freediving Depth Data Field

Recently I noticed that the very useful freediving data field called "Depth" has disappeared from the Connect IQ Store. I have no Idea why and I also don't remember the author of this data field. Because I need this data field and because I want to be able to record the data, I now try to code it myself. Only problem is that I currently run into some difficulties: -There seems to be no way to get the pressure reading from the barometer into a data field, because it would use the Sensor module which is not allowed to be used for a data field, only for an app (Gives error when put in manifest file). -And taken that it could be done anyhow, it most likely could not be done with Info.pressure because according to the API documentation this would return a pressure value corrected with the current altitude, whereas I would need the raw value to calculate the diving depth. So, my big question is: How did the author of this freediving depth data field achieve this?? Can anybody give me a hint with this? PS: Yes, I know that there exists a diving computer app at www.diveiq.com. But it’s quite expensive and not ideal for freediving. What I really want is just a data field to show me the current depth, which creates a FIT-File to show the depth as a graph in Garmin Connect.

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- Don't confuse the water rating (how deep you can take the watch) with what pressures you can read with the watch. If I recall, some devices max out pressure readings at a depth that would work for…

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You may want to check this sticky thread, as this is why the DF is now gone. https://forums.garmin.com/showthread.php?362498-Diving-related-Apps

> You may want to check this sticky thread, as this is why the DF is now gone. https://forums.garmin.com/showthread.php?362498-Diving-related-Apps

First thanks a lot for the quick answer. I was already expecting something like this. Honestly I think that’s a really bad decision made by Garmin here. Isn’t it each user’s own responsibility whether he wants to risk damaging his watch or not? I mean he bought it didn’t he? Ok. I see the point, that Garmin does not want to get sued, by users who “accidentally” destroyed their watch while using a diving app, but is banning all the diving apps really the way to go? Wouldn’t it be enough to make it mandatory to display a big fat red warning message when installing diving apps, which the user has to confirm? Then it would be 100% his own fault, if he broke his watch. This being said, could anybody help me with my coding related questions?

You might be able to use the altitude value provided inside the Activity.Info. If you go to 5m below the surface, the altimeter will show A. At 10m, it might show B... If you take measurements at various depths, you can establish a function that takes the altitude returned by the device and converts it to a depth. It would take a lot of testing to verify the correctness, but it seems that it might be a reasonable approach.Of course you could always try go contact the author of that original data field, and find out how he did it. Given that his data field was removed from the app store, he's probably going to be willing to share the source code with those that are interested.Travis

Depends on which watch you're developing for. For fenix 5 you can read raw pressure. I built exactly this data field today. Pop me a pm if you're interested. Cheers

Hi Niall,

I'm interested in this data field.

Can you help me, please? Thanks

Hi, have you had any luck?

Hi Marphy43

I know that it is now 5 years since you asked this question.

But I accidently saw your question just now. I were the author of the Depth gauge and the Max Depth gauge datafields that were on Connect IQ for a while.

The data fields were intended for use for fun when freediving etc.

I originally made it for Fenix3 and it were compatible with a few more devices. As I recall it, they were active for about a year and there were more than 3000 downloads and a lot of great reviews and no complaints.

I were working on other datafields for freediving like eg. surface time, time of last dive etc.

But, then one day I received a email from Garmin, stating that the Fenix3 and other compatible devices were never supposed to be used as a watch for diving and that the datafields were now removed from connect IQ.

It even stopped working on my own watch :-)

So yeah I spend time and effort on something that were loved and used by a lot of users, but it ended up being banned.

I used data from the altimeter to measure the depth. I wrote in an old thread how I did it here: https://forums.garmin.com/developer/connect-iq/f/app-ideas/974/freediving-depth-meter-surf-time

That's really sad, to hear.I was Hopping to Cross load this feature to the Instinct 2.0...It shows just how much Garmin tries too squeeze every Cent of its End User which Software Upgradeable Features that could and should be Free on a +400€ Watch...Want a Diving Feature? Nah, just buy another Watch for 800€...Want VO2Max? We could Software add it but nah, New Model for additional 400€while Dropping the Worth of your 2-Year-Old Watch by 60% without warning...I would say its about Time to Create an Open Source Rugged Smartwatch alternative that's Freely Configurable to your Needs.Will be Interesting to see, how long till this comment gets Taken down...Sorry for the Rant

You want to check out the App Approval Exceptions: https://forums.garmin.com/developer/connect-iq/w/wiki/10/app-approval-exceptions

Extreme Sports

Apps designed for scuba diving, free diving, skydiving, base-jumping, and extreme flight sports will not be listed on the app store for the following reasons:

- The diving features available on the Descent Mk1 are the only Garmin features intended for underwater diving use.
- The altimeter/barometer feature available in some Garmin devices is intended to be used for general altitude reference only, and is not intended to be used for extreme sports such as skydiving, base-jumping or other activities that require the use of equipment that is designed and intended for such use. The Jumpmaster feature on the Garmin tactix Bravo watch is intended to be used for skydiving activities by experienced skydivers. This is the only Garmin feature that is intended for use while skydiving.

Thanks for your Answer,About "[...] or other activities that require the use of equipment that is designed and intended for such use."the Instinct Tactic Series has also an Base Jumping Activity.And I doubt that the Barometric Sensor differs across the Series.The Instinct is Rated for 10 Bar, so technically a depth of 100m.Normal Scuba Diving goes to ~30m, 50-60m at max. so the Specification would suffice.For Apnoe it's Technically Possible, but i doubt that even a dwindling Minority can surpass a depth of 50 m.I know that for Scuba Diving Watches of 20 Bar are recommended as minimum Requirement.So technically this is right. But you could Inform the User about that and let him Accept an Agreement, like with the aviation-specific apps if thats a Problem.Like "Not Intended for Usage as Reference, only for Data Recording additionally the Watch is not Intended to be Used for this Use Case" Your Answer got my Hope up, that it might be Possible to get that App from other Sources, if you know what you are doing?Because it Technically says "will not be listed" not that its not allowed...Assumed Cross Loading is Possible.Could you Point me in such Direction?Or could you @Miguel_Hermann post it even on a Github Repo, so not everyone has to Recode it himself?

4. (NEW) Free Dive Computer App for Garmin Fenix with unique safety and data features | DeeperBlue.com Forums - Freediving & Spearfishing Community
   URL: https://forums.deeperblue.com/threads/new-free-dive-computer-app-for-garmin-fenix-with-unique-safety-and-data-features.128704/
   (NEW) Free Dive Computer App for Garmin Fenix with unique safety and data features | DeeperBlue.com Forums - Freediving & Spearfishing Community

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# (NEW) Free Dive Computer App for Garmin Fenix with unique safety and data features

- Thread starter kociubin
- Start date Monday at 5:59 PM

#### kociubin

##### Active Member

Aug 19, 2019

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I created a new Dive Computer app for Fenix watches. It took many months of work and a lot of testing so please be gentle. Please consider giving it a try or at least provide feedback. The app incorporates some features that should make freediving and spearfishing safer. This is the main reason for releasing the app. It's a full featured Dive Computer app that has some unique features for freedivers not currently available anywhere else: -Configurable, clear to read, Rest Interval algorithms: AIDA, Molchanovs, Taravana. The watch shows green if recovered and red if not. -5 Configurable Depth Alarms (Descend/Ascend) -Advanced on watch stats viewable during a dive session (Bottom time, Dive Profile) If you already have a Fenix 5, 5x, 5s or plus, please give it a shot. It's still in beta. It's free. There is a mobile app in the works. The app has a simulator built in so you can try it without water. It officially supports Fenix 5 watches. NOTE: It will also work on Descent MK2 and MK3 but those are still being tested and might not show full depth. Fenix 5 will work down to 40m. You can get the beta software here: LINK

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5. Negative Depth? - Fenix 5X - fēnix 5 Series - Outdoor Recreation Archive - Garmin Forums
   URL: https://forums.garmin.com/outdoor-recreation/outdoor-recreation-archive/f/fenix-5-series/140399/negative-depth---fenix-5x
   Negative Depth? - Fenix 5X - fēnix 5 Series - Outdoor Recreation Archive - Garmin Forums

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# Negative Depth? - Fenix 5X

I’m curious if anyone around the forums here have experience with this. Can the 5X give you a negative depth reading? Specifically I’m wanting to know if the device can show depth while snorkeling or free diving.I realize it’s not a dive watch, but since it has the altimeter it sparked my curiousity.

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Every second day I am walking at about 5m below sea level. The altitude on this watch is another of the many bugged and never fixed aspects. So from this experience pretty sure it should give you negative depth readings as I went for a ride at -28m about 2 weeks ago. I am damn talented....

I noticed yesterday when heading to pick up the kids from school that my altimeter was showing -11meters.. I normally have it set to Baramoter if I'm home as my elevation doesn't change much through the day. I had left it on Auto following a bike ride and we had a storm coming in which I guess might have confused it. Wish you could set it to auto update altitude by GPS every hour or so..

Pitz and Kilt, the OP is asking about the watch's ability to record water depths.Your replies are about an entirely different issue: Altitudes (in air) below sea level.To Pitz, I further recommend that you read some of the many threads on altitude measurements. If you think that the watch is malfunctioning because it shows a negative altitude, you simply don't understand how a barometric altimeter works.

C1rclez, there was once an CIQ data field (or app?) for diving that someone had written but I believe it was pulled by Garmin as the watch is not considered a dive watch and is not supposed to be used as one. Possible the app/data field is available "off-line" - not sure. You could probably do up your own with one of the apps that allow you to customize calculations such as AppBuilder. This is needed as you must convert the water pressure to a distance (not the same as in the air obviously).AllanOlesen67 +1. Not to take anything away from those that are having real problems with the altimeter/barometer/temp combo, many have no idea how it works and the complexity involved (especially staying accurate over a given period of time without calibration). I'm not saying Garmin does it the best, just that any abc watch will need to be calibrated on a regular basis as they drift. Even counting on GPS is not great given the lack of vertical accuracy (generally 1.5 to 2 x less than horizontal) - easy to be off by many meters even with a good fix.

Razmichael, I will look into the CIQ face or app. I have technical background and could probably write my own in the future. I was just curious about the stock ABC widget mostly. The reason I asked is because Suunto’s Core series can do negative depth (it’s a non gps enabled ABC watch). I was hoping my Fenix has similar ability.

> Pitz and Kilt, the OP is asking about the watch's ability to record water depths.Your replies are about an entirely different issue: Altitudes (in air) below sea level.To Pitz, I further recommend that you read some of the many threads on altitude measurements. If you think that the watch is malfunctioning because it shows a negative altitude, you simply don't understand how a barometric altimeter works.

I know as a baro/gps altimeter works. I'm also curious about depth readings! DESCENT MK1 is is probably equipped with the same hardware of F5X! What do you think about?

I wonder if there is cut-off for the ambient pressure reading. If there is no cut-off, a workaround could be using the built-in ambient pressure data field and do some simple math in the head while diving.Each 100 millibar is equal to one meter, and the surface pressure will be around 1000 millibar (at least when diving in the ocean), so 1100 millibar = 1 meter, 1200 millibar = 2 meter, 1300 millibar = 3 meter, etc.

> Pitz and Kilt, the OP is asking about the watch's ability to record water depths.Your replies are about an entirely different issue: Altitudes (in air) below sea level.To Pitz, I further recommend that you read some of the many threads on altitude measurements. If you think that the watch is malfunctioning because it shows a negative altitude, you simply don't understand how a barometric altimeter works.

Thanks for the obvious... I can read and am aware it's in relation to diving/ snorkeling. The title of the thread is "Negative Depth?" and so I was pointing out that the watch does record Negative Depth IE I was answering the question asked!... It matters not a jot if your above water or below water- it's a pressure sensor! trust me, I used to work in a Hyperbaric Chamber treating divers!If your diving at high altitude (lakes etc) You need to calibrate your dive computers to that altitude before use.. so the two are intrinsically related.. as I said, the sensor cannot tell if its air, water or concrete pushing on it

> Thanks for the obvious... I can read and am aware it's in relation to diving/ snorkeling. The title of the thread is "Negative Depth?" and so I was pointing out that the watch does record Negative Depth IE I was answering the question asked!... It matters not a jot if your above water or below water- it's a pressure sensor! trust me, I used to work in a Hyperbaric Chamber treating divers!

If you trained divers, I certainly hope that you know that the relation between pressure and altitude depth is entirely different in air and in water.In air, 1 millibar of pressure change is equal to approx. 8 meter of altitude change (when you are near sea level).In water, 1 millibar of pressure change is equal to approx. 1 cm of depth change.That is a difference by a factor of 800.In short: The fact that a watch can show negative altitude in air is absolutely no indication that it will be able to show true negative depth in water. If the watch just continues its air altitude calculation when it gets submerged to a depth of 1 meter, it will show an altitude of approx. -800 meter, not -1 meter.

AllanOlesen67Apologies for the tone of my post. Happy to admit my errors and you are indeed correct, I knew it wasn't exactly the same although I had not appreciated quite the difference between the 2- I only nursed divers with decompression illness, not trained them or manage the chamber operations. Always happy to be corrected and learn from others. I should in my "post-night shift state"- have mentioned the relationship was not the same and for obvious reasons, the 5X should not be used in place of a dedicated dive computer- It was instead a rather clumsy way of highlighting the watch did display a negative value.Apologies!KP

6. ”Depth” Unit Option - fēnix 5 Series - Outdoor Recreation Archive - Garmin Forums
   URL: https://forums.garmin.com/outdoor-recreation/outdoor-recreation-archive/f/fenix-5-series/154317/depth-unit-option
   ”Depth” Unit Option - fēnix 5 Series - Outdoor Recreation Archive - Garmin Forums

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# ”Depth” Unit Option

Hello, I had a quick question. Under Settings/System//Units you have a “Depth” option (feet or meters). Does anyone know why this is an option when it doesn’t have any dive related activities on the watch?

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Link for 2 app. for diving: https://www.apnea.me/dyn One for horizontal freediving (Apnea DYN) is free, and for vertical freediving (Apnea CWT) costs 12 euro.I installed Apnea DYN, and it works very well on my Fenix 5x ...

I wasn’t aware of that app, thanks. But what is the purpose the the “Depth” sensor, as I doubt Garmin would include the option for 3rd Party Diving Apps?

There’s also the Dive IQ (https://www.diveiq.com/) activities apps. As for the reasoning, from what I understand, the hardware on the 5x is almost identical to the Descent. So there’s probably quite a bit of code in common between them.

7. Descent MK1 diving features on F5x Plus?!
   URL: https://forums.garmin.com/outdoor-recreation/outdoor-recreation-archive/f/fenix-5-plus-series/150683/descent-mk1-diving-features-on-f5x-plus
   Descent MK1 diving features on F5x Plus?! - fēnix 5 Plus Series - Outdoor Recreation Archive - Garmin Forums

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# Descent MK1 diving features on F5x Plus?!

Hi everyone!Is there a way to get that features on my F5x Plus??? :p

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There is a French company which is making applications for divers on the Fenix series. https://www.diveiq.com/ But Garmin do not endorse them. It uses the barometric pressure sensor which is recalibrate for a diving purpose.... ;-)

Since the fenix 5x Plus has only water ranking of ATM 10, it is highly suggested not to try to dive with the fenix. Plus, there are other hardware differences between the fenix 5 plus series and the Descent Mk1 that were made to improve the experience for divers with the Descent Mk1.

Come on ô Garmin-Heath, the Descent Mark 1 is only ATM 10 too.And I got many friends who are diving with their Fenix 5X and now with their Plus.I have done it with my 5X in swamps, in the see and in white water and (not yet with my 5X Plus but I will with no after thoughts).We pay a premium to have strong and waterproof equipment.I would tell you about the depth we put them throughThe pressure they've been subjected toBut Neptune himself would blushThe countless beaches laid at my feetForbidden fishes for me to eatBut i think your pulse would start to rush...Argh Depeche Mode (not diving mode). Sorry !! ;-)

> Come on ô Garmin-Heath, the Descent Mark 1 is only ATM 10 too.

For the rest of you that don't have the same type of humor that Nemo has, you can check Descent Mk1's water ranking at https://buy.garmin.com/en-US/US/p/568181#specs

> ...you can check Descent Mk1's water ranking at https://buy.garmin.com/en-US/US/p/568181#specs

Broken link ô Garmin-Heath,But you mean the Descent Mark 1 is better than 10 ATM ?"... Dive rated up to 100 meters3 (EN13319)..."Here: https://www.garmin.com/en-US/blog/ou...dive-computer/ Really if it would have been ISO 6425-compliant I would have bought it instead !! ;-)BTW "EN13319" is about depth-meter accuracy not relative to the depth the watch can reach like ISO 6425 !!"EN13319" appears to be a European standard for depth gauges: https://www.en-standard.eu/csn-en-13...-test-methods/ Voili voila...I love the Fenix and I love the Descent, I will certainly buy the Mark II.But the Fenix 5X is a tough cookie and people use it for diving too. ;-)

double post

> For the rest of you that don't have the same type of humor that Nemo has, you can check Descent Mk1's water ranking at https://buy.garmin.com/en-US/US/p/568181#specs

Errhh.. is this an attempt of demonstrating that Garmin also has humor? I get a "404 You seem to be lost. Let us help you find your way."Anyway, this link seems to work: https://buy.garmin.com/en-US/US/p/568181#specs

8. Raw pressure data - Connect IQ App Development Discussion - Connect IQ - Garmin Forums
   URL: https://forums.garmin.com/developer/connect-iq/f/discussion/1217/raw-pressure-data
   Raw pressure data - Connect IQ App Development Discussion - Connect IQ - Garmin Forums

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# Raw pressure data

I am trying to develop an app that uses the pressure information from Sensor.Info.pressure. When i test my app on the Fenix 3 i do not get the result i want. When i apply a sudden pressure change the readings do change but after a few seconds the value moves back the the value before i increased the pressure. It looks to me that this is not a raw sensor value but some auto calibrated one. Is there a way to use the raw sensor data?

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Is Garmin watching their forum? Anybody?

I would also like access to the raw pressure data as well. I suspect for the same reason - a depth gauge. At the very least a complete and accurate description of what the data we are getting out of GetSensorInfo is so we can manually deconstruct it back into what is needed. The raw info is available as a datafield, so why can we not access it in the API? (The same goes with GPS altitude) Right now the only workaround is to use altitude (from either SensorInfo or ActivityInfo), but since we don't know how exactly how that is derived, any depth calculations base off altitude can not be considered reliable. Thanks

I have plans to look into this further, but it'll have to go into my queue. I'll see what I can find out and try to get an answer by later this week or early next week.

This hasn't been forgotten! I'm talking to the device teams to get an answer on this. Connect IQ doesn't do anything to the data--we're basically just making a request to the OS for sensor data and piping through whatever it returns. If there is any auto-calibration or massaging of the data, it's happening at a lower level. Once I have an answer, I'll post it here. Thanks for your patience!

Thanks Brandon! I will wait patiently. I hope you will come back with good news ;)

> This hasn't been forgotten!

I think it now is forgotten?

Hey guys,This is how I do it in my app.Data available: sensor.altitude (from pressure using baro setting) and sensor.pressure (that really gives the barometer setting adjusted with changes in pressure since that setting was made by user - as far as I understand)Assumption: even a 100mb change in pressure (which is huge) will only impact the result by only 10cm under water, so it's quite negligible.1/ Take current pressure altitude2/ Convert it to ambient pressure (below, replacing p0 with baro setting would return the correct ambient pressure, but again sensor.pressure doesn't give exactly baro setting).3/ Convert that to depth`// Physics for ambient pressure calculation var p0 = 101325;// sea level standard atmospheric pressure Pa var L = 0.0065;// temperature lapse rate, = g/cp*for dry air K/m var T0 = 288.15;// sea level standard temperature 288,15 K var g = 9.80665;// Earth-surface gravitational acceleration 9,80665 m/s² var M = 0.0289644;// molar mass of dry air 0,0289644 kg/mol var R = 8.31447;// universal gas constant 8,31447 J/(mol*K) var exp = g*M/R/L; var fact = L/T0; var press = p0 * Math.pow((1-altitude*fact),exp)/100; var depth = 0.0; depth = (press/1000.0 - 1); if (unitElevMeters){ altStr = "-" + depth.format("%.2f") + "m"; } else {//feet altStr = "-" + (depth*3.28084).format("%1f") + "ft"; } ` Don't know if it helps but I hope so.

No not forgotten. :) Work is still ongoing, but it's going to take some time. I apologize that it's not being completed more quickly. It's not a simple matter of flipping a switch to make the data available--we're coordinating with a couple of other technology teams to come up with the best solution, and that will likely require us to also coordinate with device teams to integrate any necessary changes.

@julienvn: thanks for the formula this may be very helpful. But to be honest i have some troubles to use it. Technical it is not an issue but why should i make all strange calculation to recalculate the original data? I am an engineer that has the motivation to make an app for garmin to make their prduct better for free. It take a lot of my time to do this but how is the support to me in this case? I don't understand it is now 2 months later and still no response again. @brandon: please correct me if i see things the wrong way ��. I would be happy to admit that i am wrong in this case.

Hi there,I had the same issue as Fruitmans and posted the same question on another thread (https://forums.garmin.com/forum/developers/connect-iq/159801-) However, as it seems there is still no solution to that. Is there any chance that the ambient pressure sensor reading is going to be directly available? It seems kind of odd that only processed pressure data is available through the API even though there exists a datafield for this data.Maybe Brandon can give us an update on that after two years? Are there any plans to make this available through CIQ?Thanks for an update


1. Pressure sensor not working below 3 m of water by design. Meanwhile tha Apple Watch Ultra does 40m with dedicated dive app... - fēnix 6 Series - Wearables - Garmin Forums
   URL: https://forums.garmin.com/outdoor-recreation/outdoor-recreation/f/fenix-6-series/308135/pressure-sensor-not-working-below-3-m-of-water-by-design-meanwhile-tha-apple-watch-ultra-does-40m-with-dedicated-dive-app
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# Pressure sensor not working below 3 m of water by design. Meanwhile tha Apple Watch Ultra does 40m with dedicated dive app...

Hi

I was just wondering why Garmin has decided to kill the functionality of the pressure sensor, that could be used as a depth meter with appropriate software for recreational diving on Fenix 5. The readings were very accurate and reliable.

But since fenix 6 and 7, including Tactix series the pressure sensor cuts out at 3 m below surface? Why?

Meanwhile a toy Apple Watch Ultra does easily 40m depths with built in app (plus a ton of other apps,and wireless conectivity and rumored 60h battery life)

Why Garmin is destroying built in functionality? Not everyone will(or must decide) to buy Descent if he or she does only occasional recreational dives

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Reading your last sentence, it seems like you already know the answer. Main reason is most probably that they want us to buy one of the Descent watches if we want any diving features. Additionaly, it could be that the Fenix uses a different pressure sensor that is not tested or suitable for diving, and Garmin does not want to get held responsible for injuries that are caused from wrong readings.

Why Garmin is destroying built in functionality?

Fenix was never build for scuba diving :

10 ATM :

splashes, rain or snow, showering, swimming, diving into water, snorkeling, high-speed water sports

1st: the Apple Watch Ultra is not a toy...

2nd: Garmin always limits functionality of the hardware via software to differentiate their devices. The Vivoactive 4 has essentially the same sensors as the Fenix 6 but you don't get things like recovery time and training effect in Garmin connect with the Vivoactive, although the FIT file contains this data.

I have tested the DIVE IQ app on Fenix 5 and it was accurate within 0,1 m when compared to a "proper" dive computer. Good enouigh for me, especially as a backup device or an easy loggin system for dives in the Garmin enviroment. That's why I was dissapointed that after switching to Tactix Delta, suddenly I was not able to use the program anymore. I am not saying that it should replace proper dive computer , but for those tht go diving 2-3 times per year it is good enough. The "getting responsible" part is no problem- just use at your own risk

The first part of the definition: 10 ATM "Withstands pressures equivalent to a depth of 100 metres". I am not talking about operating buttons underwater or going to 100 m. Just 40 m. Recreational. Why rate the device for 100m and then kill it functionality at 3m? Especially when talknig about Tactix Delta- a rugged military watch...

Tha "toy" part was intentional , especially when you compare marketing claims for Garmin watches, especially the Tactix line-up. There are some things that make it to older watches, and Garmin should be applauded for it. However if something is intentionaly crippled, especially for apps not from garmin but Garmin store, thats another story...

The first part of the definition: 10 ATM "Withstands pressures equivalent to a depth of 100 metres".

I'm surprised that you, as a diver, don't recognize the definition of water resistance correctly. 100m does not mean that this watch is suitable for diving. Here is another source outside of Garmin:

———-

„

That’s why most brands have a consensus of what WR rating means. Rather than thinking WR rating as a precise measure of water depth it can go to, it is marketed as an indication of levels of water resistant capability, with a substantial safety margin. Most WR ratings on the market can be summarized as thus:

3 ATM/30M — Splash/rain resistant, Washing hands

5 ATM/50M — Shower/bath

10 ATM/100M — Recreational surfing, swimming, snorkeling, sailing and water sports

20 ATM/200M — Professional marine activity, serious surface water sports and skin diving“

—-

# How Waterproof is Garmin’s “Waterproof” [Updated 2017]

—-

„

- 10 ATM/bar/100m: This watch is waterproof and good for most watersports like swimming, sailing and snorkeling in shallow water. If you plan on jumping off cliffs and diving, don’t wear this watch.“

——-

——

If you want to go diving, buy a diving watch ;)

2. Pressure sensor not working below 3 m of water by design and is a disgrace for Garmin when most of any other brands of watches can do more, is apple better than Garmin? - fēnix 7 Series - Wearables - Garmin Forums
   URL: https://forums.garmin.com/outdoor-recreation/outdoor-recreation/f/fenix-7-series/379047/pressure-sensor-not-working-below-3-m-of-water-by-design-and-is-a-disgrace-for-garmin-when-most-of-any-other-brands-of-watches-can-do-more-is-apple-better-than-garmin
   Pressure sensor not working below 3 m of water by design and is a disgrace for Garmin when most of any other brands of watches can do more, is apple better than Garmin? - fēnix 7 Series - Wearables - Garmin Forums

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# Pressure sensor not working below 3 m of water by design and is a disgrace for Garmin when most of any other brands of watches can do more, is apple better than Garmin?

Disclaimer: I'm not a diver or an experienced freediver.

I'm incredibly frustrated with Garmin because I want to use my fantastic Fenix 7 Pro watch for snorkeling and shallow freedives up to 10 meters for a few seconds, but it's impossible with this model.

Garmin has deliberately limited the functionality of their watches, including the Fenix 7, Epix, Forerunner, and others, to push consumers toward buying their specialized Descent model. This feels like a blatant cash grab.

Let's not start with the 10 ATM rating. I understand the limitations, but I’m not asking for a full dive computer. I just want to enjoy some simple underwater activities during the summer.

For that purpose, the Fenix 7 Pro is utterly USELESS under water!!!

What makes this even more frustrating is that, despite my hatred to Apple products, I have to admit that the Apple Watch is a better option for anyone seeking a truly multipurpose watch. It not only handles these activities with ease but is also somehow cheaper!

It’s disappointing that Garmin has chosen this route. They’ve turned what could be an amazing, versatile piece of technology into something that falls short for no good reason other than profit.

If you want to use Garmin watch underwater just for fun is best not to buy it, just buy an Apple watch.

This post probably will be deleted or locked by Garmin so i will repost it anywhere i can

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It’s disappointing that Garmin has chosen this route. They’ve turned what…

- You should read a little before you bought it. Since Fenix 5 Garmin limits barometer usage to 3 meter depth. Second, as somebody wrote it, Fenix is not advertised for diving, you could swim, you could snorkel…

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What makes you believe that the barometer in the Fenix is capable of detecting pressure changes down to 10m or beyond?

It’s disappointing that Garmin has chosen this route. They’ve turned what could be an amazing, versatile piece of technology into something that falls short for no good reason other than profit.

Do you know that the sensor in both the Descent and the Fenix are identical and that Garmin has limited its functionality via software?

It's likely that the Apple watch Ultra and Descent have two sets of sensors - a barometer which is going to hit the stops the moment it gets plunged underwater (given that these devices are inherently delicate), and a second sensor which is able to measure pressure depth. I don't know that for certain, but I'm not about to become enraged over the issue without understanding more about it.

This post probably will be deleted or locked by Garmin so i will repost it anywhere i can

Remember that *you* purchased this watch knowing its functionality and limitations. I get that you're upset, but you really need to take accountability for your purchasing choices. If you continually find yourself being surprised and angered, then that is perhaps an indicator that you need to slow down and do a little more research.

Maybe take a couple of breaths and work out whether or not the Fenix is the right device for you. Perhaps an Apple Watch Ultra or a descent is more suitable for your use case.

Let me be clear, i hate apple.

The problem is that i love the fenix series i had the 3 - 5 and now 7 , and up to 5 i was able to use the multiple third party apps for freediving, only for shallow water if I'm just going for a swim, if I'm going spearfishing i always use my aeris 10 . So i did research it a lot that's why I'm disappointed with Garmin they have made a fantastic watch and deliberately limit it's capabilities.

The f7 is not advertised to support underwater activities and the Descent has a depth sensor in addition. Indeed, it would be overkill for snorkling money-wise.

I don't think Garmin limits capabilties of the f7 to prevent third party apps from providing snorkling activities. How would the watch detect it is underwater? Can the barometer be used to determine the water depth?

You should read a little before you bought it. Since Fenix 5 Garmin limits barometer usage to 3 meter depth. Second, as somebody wrote it, Fenix is not advertised for diving, you could swim, you could snorkel with it, if you want do scuba diving go for Descent, it is designed for scuba, for example have second barometer dedicated to depth measure

With Apple Watch you need to buy Ultra and extra app to do diving with it. And to be honest, I still will not believe them that I will be fully secure.

As i already said, i have the fenix 5 and is working fine, also the fenix 6 was working and after the update they limit it to 3 m .

Read what i wrote i don't want it to go for diving i have my dive computer for that, and yes the barometer is working perfectly fine for shallow water

I’m using Garmin watches since 2016 (Fenix 3) and you are right, for Fenix 3 it was external app available which gives you ability to use it as dice computer. Never had Fenix 5 and cannot say how it was for it, but since Fenix 6 (I had Fenix 6 and Fenix 7) this app was never usable because Garmin limited depth sensor usage to 10 feets officially saying (we don’t guarantee accuracy of these measurements). You could complain about it but nothing change it, leave with it or change your watch.

3. Diving activities in Garmin Fenix 7 - fēnix 7 Series - Wearables - Garmin Forums
   URL: https://forums.garmin.com/outdoor-recreation/outdoor-recreation/f/fenix-7-series/260357/diving-activities-in-garmin-fenix-7/1367405
   Diving activities in Garmin Fenix 7 - fēnix 7 Series - Wearables - Garmin Forums

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# Diving activities in Garmin Fenix 7

Hello everybody

Wouldn't you like the Fenix 7 to have some possibility of diving activities?

I know that the Garmin Descent MK2 exists and I think it is a wonderful device, but I am not going to dive more than once or twice a year, and that if I am lucky.So I can't justify the money to buy one.

So I think it would be a good opportunity to include the most basic functions of the Descent MK2's dive computer and put them in the Fenix 7 (we are talking about no mixed gas dive and basic apnea).

I know this is possible, in fact, I used a Garmin IQ downloadable app for my Fenix 5s and it worked like a charm, just like my dedicated dive computer.

This would be a great reason to buy a Fenix 7.

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I wear my Epix all the time while snorkeling and doing light freediving. It's been working fine. What's the issue you're having? In that entire very lengthy post you didn't mention…

- It would be neat, but diving computers have stricter hardware and performance requirements than the Fenix offers, which is why Descent is more expensive. For example, the standard atmospheric barometer…
- 1. The "100M" certification of the fenix does NOT correspond to certification for diving (EN13319).2. the fenix simply does not have a depth gauge.100 m: Can be used for all types of swimming…

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After Garmin releases the Fenix 7 I expect they'll eventually also release a Descent Mk3 with the same features plus diving. So if you're a diver then you can just wait a few months and buy that new Descent.

I have a Descent Mk2 and it's a great device. But Garmin had to make some design compromises to achieve the necessary water resistance rating and squeeze in an accurate depth sensor. Compared to a regular Fenix 6X the case is larger, it weighs more, and the battery capacity is lower. I expect most Fenix customers don't care about diving and would prefer a smaller, lighter device with better battery life.

I really don’t think so. The MK 2 is just new released and I don’t think, that we will see a MK 3 for the next two years. But if it took some more years until the F7 will be released, you may be right

I was responding to this:

without making the proper (more expensive) hardware and performance upgrades necessary for a diving computer, then lives could be at stake. It would be a massive liability issue for Garmin.

Have you read the dive warnings on page 2 or the disclaimers in the manual? There is nothing on the Descent watch that if it were to fail, that Garmin would take responsibility. Liability isn't an issue here as their lawyers have this covered with disclaimers. This can simply be added to the manual of any device.

If Garmin added software features to a Fenix marketed it as a dive computer, without making the actual hardware investments/changing needed to serve that function, it would absolutely be a liability, and one that most definitely not be able to be disclaimed in a user manual. Without speaking for C.sco, I don't think he was talking about the Descent, since that device IS a real dive computer and is presumably fit for purpose. If a Descent fails, standard product liability claim, maybe a design or manufacturing defect involved, but not the same issue as marketing a non-dive watch as a dive computer.

On the previous Fenix Version the Application Apnea was working very well. https://www.apnea.me/dyn/ But since Fenix 6, Garmin has put "limitation" in its pressure sensor (used as barometer and depthmeter)...See their FAQ here: https://www.apnea.me/faq/

Been using my Fenix 5X, 5X Plus and 6 for diving and sea activities with zero issue (it is a very sturdy piece of equipment and it was not used as my main diving computer) and I sincerely considering buying a MK2. :-)Also being an apneist for 45 years this is a very dangerous activity which should not be made alone. Here is a link to Jean Pierre Petit who has lost his son... JPP is a astrophysicist and a teacher. It's a long read but very helpful to understand the dangers: https://www.jp-petit.org/dangers/danger_eng/apnea_eng/apnea.htm

"The question 'how long can I have an apnea before I faint today, having my physical condition, in that water?' can not be answered unless... you experience it. It's highly probable that a great many of times people have been at a fraction of second to death, without even noticing it."FYI JPP knew very well Jacques Mayol (The Big Blue's main inspiration) and they were diving together.Here is the French version which has been updated many time since: https://www.jp-petit.org/dangers/apnee.htm In English with Google Translate: https://translate.google.com/translate?sl=auto&tl=en&u=https://www.jp-petit.org/dangers/apnee.htm Sorry for the long almost Off Topic but as the Fenix is made as a "training" instrument, I thought it was important to point the danger of pushing the limits in that apnea activity. A good friend of mine who was a apneist fisherman for his living in the Pacific Ocean and was as fit as Charles Bronson in his prime has died from an heart attack in his 50's... We were very surprised as he was so fit and careful.Quoting JPP:"Our body is not designed for extreme apnea. Even if a freediver won't have any problem, after apneas of 3, 4 minutes or more, this exercise each time destroys neurons in his brain and especially cells in his heart muscle. Much later he will pay the bill by becoming much more sensitive to a heart attack."

I agree. I have a suntoo core that do basic diving until 10m. I would love theses feature (or a little more) in a fenix. Maybe until 20m so that it does not impact the sells of the descent.

20m or 30m is enought for a lot of spearfishing, snorkeling or exploration with a gopro. A suntoo core dive capabilities + load and record gps coordinates, point of interests and dives. A casual diver will not buy a descent.

I agree. I have a suntoo core that do basic diving until 10m. I would love theses feature (or a little more) in a fenix. Maybe until 20m so that it does not impact the sells of the descent.

20m or 30m is enought for a lot of spearfishing, snorkeling or exploration with a gopro. A suntoo core dive capabilities + load and record gps coordinates, point of interests and dives. A casual diver will not buy a descent.

If you think that a written disclaimer completely indemnifies a company from all responsibility you really don't know anything about the law. This is not a video game. A court could find Garmin liable in an incident where their watch error led to an injury

I also used dive computer on my Fenix 5x. Just for rough indication when freediving up to 20 meters. Having 7x without this option is disappointing.

I also used dive computer on my Fenix 5x. Just for rough indication when freediving up to 20 meters. Having 7x without this option is disappointing.

i don’t want to dive with my F7, i just want to do snorkelling and know how depth i am. I don’t need any certification for this.

4. Please add diving support to the fenix series - fēnix 6 Series - Wearables - Garmin Forums
   URL: https://forums.garmin.com/outdoor-recreation/outdoor-recreation/f/fenix-6-series/172190/please-add-diving-support-to-the-fenix-series/997335
   Please add diving support to the fenix series - fēnix 6 Series - Wearables - Garmin Forums

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# Please add diving support to the fenix series

Hi,

thank you Garmin for introducing the F6 series. The watches are great!

However, with this thread I want to ask for a feature; maybe for the upcoming fenix series.

Would it not be possible to also PROPERLY (no hack) provide the diving modes in upcoming fenix watches?

I can understand that you would like to target the diving segment with the Descent series but I think there are also a lot of users who do outdoor/fitness AND scuba diving. And in my understanding, it should not be that difficult to also include it in the fenix series (the most difficult part should be the water rating and to implement the pressure sensor, or?)

I'm a loyal fenix buyer but I hesitate a bit with buying TWO expensive watches. On the other side, if i would have to pay a bit more on a new fenix watch which would also include the diving modes, i would do it. I don't know, if other users see this similar, but for me I can state this.

Thank your respones.

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- https://www.apnea.me/ do an after market app for the garmin. They also state the limitation of 7.5m. This needs to be fixed, as those adventure types absailing lava tubes would surely go to 30m…

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Not for commercial diving, but to recreational diving 100 meters its more that you need. In PADI the deep diver speciality allows uou to go 40 meters... And a Fenix could handle it.

Last week a was diving with my wife with a forerunner 945 and a 245 and nothing happened to tje watches.

The Fenix series (5, 5+ and 6) are regularly supported by Garmin. The Mk1 Descent though is the black sheep of the Fenix series. Based off of the 5x, the Descent was/is POORLY supported. I had the watch for nearly 2 years and have watched it’s progression through from day 1. Garmin has been horrendously slow with updates and/or resolving problems. They refused to listen to suggestions about the diving app on the watch (from Dive professionals) and they were almost non-existent in support from Garmin Admins that stated that they’d help.

The diving application on the watch was very “basic”, to a point that a $300 wrist computer had more functionality and a more common sense GUI than the Descent (from a “Single Dive” standpoint).

They’re highly underestimating people’s interest in buying a $1000+ dive computer every 2 years, I’ve worked in the Diving industry for almost 20+ years now and people do NOT buy products like that on a 2 year basis. Garmin has left a bitter taste in people’s mouth over the Mk1, not sure what they can do to get them to buy the Mk2.

I have no issue with how the other models have been supported up to this point, but the Mk1, from a support standpoint, was embarrassing. Now, I will say this much the Customer Service from Garmin (when there was an issue) was OUTSTANDING. I had a few issues (bad sensors) or one of my staff members had the famous 5x HR sensor cracking and they resolved it. The development team for the Mk1 on the other hand....

here's the good news: There is an app from a different company- not available on the garmin store. Google "Dive IQ."It works on a slew of garmin models, and while the app also works on the Fenix 6 line- the output of the pressure sensor is limited (presumably by hardware) to -7.5m. So, bottom line is, there's a HW limit on the F6 for diving. (maybe intentionally?)

I'm a bit annoyed. my real dive computer just broke. the app ($19) won't function on my new Fenix 6P, and the company no longer supports the old Fenix 3HR which I still have.

Maybe I'll pick up a used 235 or Vivoactive 3 as a cheap alternative to getting a new dive computer. (I'm an infrequent diver, and don't push the limits)

Cressi would be the most cost effective way to get another computer. The Leonardo is popular from a budget standpoint.

I think the pressure rating on the 6X is the same as the 5X, so I wouldn't think it's hardware related. They may have limited the data output to discourage third party software use like Dive IQ (which works well on the 5X). They could probably relent via a software update.

That is true, I had been using the application, because as I said before, I do not find the investment by the Descent MK1 to dive twice a year seems justifiable.

In my Fenix 5s the application worked great and it worked very well in my new Forerunner 945 ... until I updated the software version. At that time, the log was blocked beyond 6.3 meters (about 20 feet) making my Garmin useless for apnea and diving.

I still believe that they should develop basic activities for apnea and diving to include in the Fenix and Forerunner 945 and leave more advanced functions such as multi-gas dives or underwater fishing for the Descent MK series. In this way, if someone has the fortune of being able to go diving once a week or do a more specialized job, you can buy the Descent and the rest of the simple mortals who can only go to the sea on vacation, we can use the basic activities

Otherwise, it is better business for me to have my 945 to run and train the rest of the year and buy a specialized and advanced dive computer for less than half the price of the Descent MK1 (it could be a Cressi or a Suunto).

It is correct, I think it is an excellent option. Moreover, for about 50 more dollars, I would buy the Cressi Goa that includes a Freediving mode.

Read about the various levels of waterproofing. The 100m rating is based on static water pressure - in other words, you're not moving, the water isn't moving, and you're not pushing buttons on the watch.

As soon as you move in the water, or the water moves around you, or you push a button, suddenly the watch cannot reliably withstand the water pressure at 100m anymore. At what depth can you safely swim around in the water and push buttons on the Fenix? We don't know, because they don't give us that information, they only state that it's good for shallow swimming such as snorkeling. It might survive in deep water, but if Garmin doesn't suggest doing so, then why risk it?

This is why the Fenix is specifically not sold or marketed as a diving watch, and why Garmin makes a different watch that is specifically sold and marketed as a diving watch. If you're disappointed that it doesn't work well as a dive watch, that is not Garmin's fault, that is the buyer's mistake for not purchasing the correct product for their needs.

Moreover, the barometer/altimeter is most definitely not designed to work properly at high pressure, which is why nobody can ever get an accurate depth reading while diving. 7 meters of water pressure (which is almost double the pressure of the air at the surface of the water) maxes out the pressure sensor, because it was only designed for air and shallow water. 100 meters in depth is about 10 times the pressure level of the air at the surface. So those depths require a pressure sensor that is specifically designed to withstand that immense pressure and measure it accurately.

Dive computers are specifically rated for use (swimming, pushing buttons, receiving accurate depth readings at high pressure) up to their rated depth, which is why they are the only appropriate device for such an activity.

Just one thing in this post I wanted to comment on. Understand, most dive computers are only rated to 100m, so it’s not always about the depth rating (aside from being able to hit the buttons UW).

The Dive IQ application doesn’t specify pushing buttons UW. In fact, Jesus (guy behind the Dive IQ application) was working on a “Turn the wrist” to view more information and to NOT push buttons UW.

I was the one who did the testing for the Dive IQ (for diving) for the 6 series and confirmed the depth “governor” with him during one of my training dives. Some free divers had tested it beforehand and came up with the same result.

100m is pretty waterproof buddy lol. I doubt that 90% divers go over that

5. Light dives - fēnix 7 Series - Wearables - Garmin Forums
   URL: https://forums.garmin.com/outdoor-recreation/outdoor-recreation/f/fenix-7-series/297005/light-dives
   Light dives - fēnix 7 Series - Wearables - Garmin Forums

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# Light dives

Hey, guys, I’m starting light diving this summer(no more than 70 feet) and have Tactix 7 AB. My question is is it safe to use the watch for these and is there a recommended app to use to track pure for personal curiosity. Any advice/comments in general are welcome. Thank you.

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C.sco wrote, it is rated 10 ATM, but in the watch-maker language (not only at Garmin), this rating means it is safe and warranted for swimming and some shallow snorkeling. See what's stated in the docu…

- I'm a freediver and I frequently dive with my Fenix 5 Plus and Fenix 7 down to 30m (~100 feet). I also made a few scuba dives with my Fenix 5 over the years. I never had any issues. You're taking a…

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It's rated to 100m (328 feet) so it should be perfectly safe at 21m (70 feet).

It will not measure water depth correctly (or even at all, I don't think) because it's the wrong kind of pressure sensor for that - that requires a dive computer like Descent.

Instead, it'll show something like negative 30,000 feet elevation, lol.

As C.sco wrote, it is rated 10 ATM, but in the watch-maker language (not only at Garmin), this rating means it is safe and warranted for swimming and some shallow snorkeling. See what's stated in the document Water Rating Definitions for the 10 ATM rating:

Suitable for splashes, rain or snow, showering, swimming, diving into water, snorkeling, high-speed water sports

Also make sure to read the FAQ about Garmin Device Waterproof Function:

4. Only watches with diving function are suitable for diving activities and buttons can be pressed underwater. Please avoid the above situations for other devices.

I agree that the watch will probably survive an occasional dive to some 20m, especially if you avoid pressing the buttons. I have personally taken my low-end Instinct (also rated 10 ATM) several times by mistake little bit deeper than 20m, with no harm. On the other hand, should the watch get water damaged, it won't be covered by the warranty.

Good points - I forgot to mention the button pushing issue. I agree that if you do take it diving to 20m, you should avoid pressing the buttons while you're down there.

Thank you, guys.

I'm a freediver and I frequently dive with my Fenix 5 Plus and Fenix 7 down to 30m (~100 feet). I also made a few scuba dives with my Fenix 5 over the years. I never had any issues. You're taking a small risk but based on the 10ATM rating and my personal experience over the past 3 years I think you're safe. Don't press any buttons at depth.

With older Fenix watches (e.g. Fenix 5 or Fenix 5 Plus) you could sideload a scuba app or a freediving app that would allow you to use the watch like a dive computer (including accurate reporting of depth). But those days are gone. Starting with Fenix 6 Garmin started to cap the readings from the sensors so depth is no longer reported accurately deeper than a few meters.

6. Freediving/diving etc - fēnix 7 Series - Wearables - Garmin Forums
   URL: https://forums.garmin.com/outdoor-recreation/outdoor-recreation/f/fenix-7-series/380237/freediving-diving-etc
   Freediving/diving etc - fēnix 7 Series - Wearables - Garmin Forums

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# Freediving/diving etc

Hi

Why is the fenix 7x pro SS blocked from reading the depth measurement if it is waterproof up to 100 m? What's the point? Secondly. How to unlock it?

or maybe it's just me who has this problem?M inimum 5 meters under water

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Why is the fenix 7x pro SS blocked from reading the depth measurement if it is waterproof up to 100 m? What's the point? Secondly. How to unlock it?

The primary reason is the safety…

- Same question, again??As Garmin said, barometer is certified to measure air pressure not water pressure and they block it for safety reason.100ATM resistant is with disclaimer to not push any buttons under…

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Same question, again??As Garmin said, barometer is certified to measure air pressure not water pressure and they block it for safety reason.100ATM resistant is with disclaimer to not push any buttons under water.If you want dive, buy watch designed to it (e.g. Descent), for snorkeling you could use Fenix, there is even activity for that.I can't believe you want to use something what might put your life in danger just to save some money.

Ok thx

Why is the fenix 7x pro SS blocked from reading the depth measurement if it is waterproof up to 100 m? What's the point? Secondly. How to unlock it?

The primary reason is the safety of the users, not the safety of the hardware. The sensor can withstand a great depth, but Garmin needs to prevent the use of the barometric sensor for measuring the depth, because they cannot take the legal responsibility for allowing 3rd party applications that may potentially promote unsafe behavior and expose the users to health and life threatening situations. The other reason is that the plain barometric sensor is tuned for measuring the atmospheric pressure, and although it works underwater too and can be calibrated as a depth gauge, its accuracy quickly drops with the depth. It means that it could easily happen that the 3rd party app using the barometric pressure sensor out of the standard working range would give you false information about the depth, and could be responsible for a diving accident.

Read the detailed restrictions in the App Review Guidelines (garmin.com)

b. Physical Safety

Your app must not threaten the physical safety or well-being of users or anyone else. We reserve the right to reject any app that we believe is unsafe or could, directly or indirectly, cause anyone harm. This includes apps that may create a false sense of security, such as “safety awareness” apps.

Here are some specific issues to avoid:

- Harmful Challenges: Your app should not encourage or challenge users to act or use devices in a manner that risks physical harm to themselves or others. For example, apps should not challenge users to perform exercises or activities in a manner likely to result in injury or to drink excessive amounts of alcohol.
- Dangerous Activities: We prohibit apps that are designed to be used during dangerous activities such as scuba diving, free diving, skydiving, base-jumping, and extreme flight sports, even if your app is designed to work with one of Garmin’s products that has been designed for those activities. For example, you may create apps that add functionality to a Garmin Descent series dive watch, but your app should not be intended only for use during a user’s dive.
- Violence: We do not allow apps to facilitate or encourage gratuitous violence, human rights violations, domestic violence, child or animal abuse, or similar actions that harm the user or others.
- Drugs and Dangerous Products: Apps should not promote the use of illegal drugs, tobacco or vape products, excessive amounts of alcohol, unapproved substances, and illegal or dangerous products.
- Certain Aviation Use Cases: We will allow appropriate aviation-themed apps, but in addition to any other legally required disclaimers, aviation apps (except watch faces) must include the following disclaimer: “WARNING: The app is intended only as an in-flight aid and should not be used as a primary information source. If the app contains a barometric altimeter, it will not function in a pressurized aircraft and should not be used in a pressurized aircraft.”
- Regulated Activities: You are solely responsible for ensuring that your app complies with laws and regulations and includes any legally-required disclaimer. We encourage you to seek independent legal advice where appropriate, especially if your app relates to regulated activities, including the practice of medicine, law, or financial services.

7. What is the maximum underwater depth supported by the fenix 7 ? - fēnix 7 Series - Wearables - Garmin Forums
   URL: https://forums.garmin.com/outdoor-recreation/outdoor-recreation/f/fenix-7-series/325975/what-is-the-maximum-underwater-depth-supported-by-the-fenix-7
   What is the maximum underwater depth supported by the fenix 7 ? - fēnix 7 Series - Wearables - Garmin Forums

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# What is the maximum underwater depth supported by the fenix 7 ?

Hi, I would like to know what is the underwater maximum depth supprted by the fenix 7 (std size, sapphire solar) ?

Can I bring it with me at 40m depth ?

I do not want to use it as a diving computer ; just have it for compass for example and possibly heart rate tracking...

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triple the amount for purchasing an additional Descent Model which the didn't even bring out in a 47mm version

Descent G1 is cheaper than Fenix 7 (catalogue price $549.99), Descent MK2…

- Although the water rating of Fenix 7 is 10 ATM, and the description claims "Withstands pressures equivalent to a depth of 100 meters", the watch is not supposed to be used for scuba-diving. Only "…
- Water resistance of 10 ATM means the watch was tested for that pressure statically. It does not involve any movement, or manipulation of the watch, using buttons, tapping on the watch, or smaller shocks…

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Although the water rating of Fenix 7 is 10 ATM, and the description claims "Withstands pressures equivalent to a depth of 100 meters", the watch is not supposed to be used for scuba-diving. Only "splashes, rain or snow, showering, swimming, diving into water, snorkeling, high-speed water sports" are covered by the guarantee. The F7 will likely survive an occasional dive to 40m, especially if you avoid pressing buttons at depth. However, if it suffers a water damage, it won't be covered by the guarantee.

Water Rating Definitions | Garmin

To add to what Trux says (which is all correct), I just want to add that in all my years on Garmin forums and user groups I don't recall ever seeing a report of a Fenix sustaining damage from water pressure. Personally I would err on the side of caution, as Trux recommended, although I probably wouldn't hesitate to take mine down to 20-40 meters once in a blue moon. But realistically it's probably not going to have any issues. That said, in the off chance that something somehow did occur then Garmin probably wouldn't honor the warranty.

If diving to 20+ meters is something you plan to do regularly, I'd recommend a Descent MK2 which is actually designed for that and is FULLY rated for a diving depth to 100 meters. Even if you won't actually use the dive features, just the added level of water pressure protection is worth it. Also it has all the Fenix 6 features, software-wise (though they haven't made one with fenix 7 hardware yet unfortunately)

It's funny. The only stated difference in WR between the Fenix and the Decent is that the Decent is tested to an Engineering standard that has nothing to do with WR, it's a diving depth gauge standard.

It says it's water resistant to 100m, then it should be WR to 100m with ordinary use.

"Her Deepness" regularly dives with a Rolex Datejust which only has a WR of 100m

Water resistance of 10 ATM means the watch was tested for that pressure statically. It does not involve any movement, or manipulation of the watch, using buttons, tapping on the watch, or smaller shocks - all of that can easily happen during a dive, and nothing of it has been tested against. The watch is simply statically tested for 10 ATM, but is not certified or covered by the warranty for scuba diving. That's the standard across the watch industry as you can see also in the WikiPedia article about the Water resistance classification:

Water Resistant mark - Wikipedia

Moving a watch underwater isn’t relevant. Movement creates dynamic pressure. You can’t move your arms fast enough under water to create a material change in pressure. https://www.watchuseek.com/threads/sigh-myth-busting-again.610734/ The same probably applies for any underwater bumps.

Is there any difference between scuba diving and free diving, noting the World Record for free diving is over 100m?

All I’m saying is the watch should be fine diving to 100m if it’s certified to 100m. I would expect my 100m water resistant watch to be work to that depth (noting PADI’s deep diving certification is only to 40m). Realistically though, if I got to 100m deep, I’d have more concerns than whether my watch was working as it would probably be part of a one way trip.

You can’t move your arms fast enough under water to create a material change in pressure.

It is not about changing the pressure. It is about reducing the waterproofness of some seals when using / manipulating / moving / shocking the watch vs. the static situation used during the 10 ATM testing.

The watch is simply not tested and not covered by the warranty for scuba diving. Regardless whether the watch withstands it or not, and regardless what you think about. You do not have to obey, and you can dive with it, but do not expect the warranty if something goes wrong.

Garmin warranty policy doesn’t cover any water damage so regardless of which watch you use (even the decent), if it breaks, you’re stuffed.

Setting that aside, I would argue differently 100m is a definite metric. It can be reached diving or swimming (in theory). Whether you have a tank on your back can’t be the metric. If scuba diving is the metric, your argument is that if the watch fails while learning to scuba in your local swimming pool at 1.5m deep, then you’re out of warranty.

Either way, I do take your point on risk. If you use something (watch under water or otherwise) and it fails, there is a risk that the manufacturer won’t accept a warranty claim.

Garmin warranty policy doesn’t cover any water damage so regardless of which watch you use (even the decent), if it breaks, you’re stuffed.

Where did you see that? If you manage to have a leak at a Descent during a common scuba dive, I am sure it will be replaced promptly.

Whether you have a tank on your back can’t be the metric.

It is not about the tank on the back, it is about the usage of the watch at depth. For example pressing a button that was not designed to be pressed underwater, may lead to a damage. MK1 / MK2 / GI1 have different buttons, as far as I could see, than other Garmin models.

Usage is different if your swimming vs diving but my point about the tank stands. The depth is the relevant differentiator and the Fenix says it can go to 100m.

Anyway, we’ve probably gone way deeper (pun intended) than the OP wanted. It’s after midnight here, my game has just finished so I’m off to bed. All the best.

Personally, over the years, I have regularly used plenty of water resistant 100m watches including automimic and quartz Citizen and Seiko watches also the Fenix 5 and 6 for dives to 40m and never suffered any kind of failure. I have not used the Fenix 7 for diving as I have not dived since the start of Covid, but would not hesitate to do so.

Having said that I avoid using the buttons at any time in the water and would not expect a warranty claim to be accepted if I was using it whilst scuba diving. The current Descent range features inductive charging and the buttons operate by inductive technology which means that the case is effectively sealed. The descent is in compliance with the EU standard EN 13319 (as is the Apple Watch Ultra apparently) which means that it is certified for recreational scuba diving to 40m and as such, scuba diving should be covered by the "during normal use" clause in the limited warranty.

I have a Suunto Dive computer but if I didn't and wanted dive computer functionality from a smartwatch I would buy the descent without any qualms.

8. Please add diving support to the fenix series - fēnix 6 Series - Wearables - Garmin Forums
   URL: https://forums.garmin.com/outdoor-recreation/outdoor-recreation/f/fenix-6-series/172190/please-add-diving-support-to-the-fenix-series/1148509
   Please add diving support to the fenix series - fēnix 6 Series - Wearables - Garmin Forums

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# Please add diving support to the fenix series

Hi,

thank you Garmin for introducing the F6 series. The watches are great!

However, with this thread I want to ask for a feature; maybe for the upcoming fenix series.

Would it not be possible to also PROPERLY (no hack) provide the diving modes in upcoming fenix watches?

I can understand that you would like to target the diving segment with the Descent series but I think there are also a lot of users who do outdoor/fitness AND scuba diving. And in my understanding, it should not be that difficult to also include it in the fenix series (the most difficult part should be the water rating and to implement the pressure sensor, or?)

I'm a loyal fenix buyer but I hesitate a bit with buying TWO expensive watches. On the other side, if i would have to pay a bit more on a new fenix watch which would also include the diving modes, i would do it. I don't know, if other users see this similar, but for me I can state this.

Thank your respones.

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