D2 Air HRM readings

Does anyone use D2 Air for hiking or any kind of sport? I have a problem with HRM. I've received watch 2 weeks ago and on my first two or three hikes (my route is everyday the same) HRM readings were more or less as it should be, but since then (I think there were some watch updates), I have really bad readings of HRM.

Here is data reading from my first hike. First half an hour is ascending and the other half is descending. HRM readings are how it supposed to be. I've even compared this reading with the one I have from before with HRM belt strap and they were very similar.

And here are some bad readings since watch updated:

Here there isn't any difference between ascending and descending.

And this is yesterdays hike. Ascending heart rate pulse is even lower then descending pulse.

I've bought watch mainly for aviator functions and also for using it as a heart rate monitor for my hikes and sports. But this is just not how it supposed to work and this is not acceptable. Before D2 Air I've had Samsung Gear S3 and there were better readings then this. And Garmin advertises their HR monitor technology as state of the art.

Anyway I have also reseted my watch with "Delete data and Reset Settings", but that didn't helped. Is this hard reset or just soft reset with deleting data and settings?

Does anyone have the same problem or any solution for this?

0 AV8OR51 over 4 years ago

Did you use the chest heart monitor for the "bad" hikes as well for comparison? Are the conditions similar between the three hikes (your health, your rest, weather, etc.)? I've had similar issues with my D2 Delta in the past..for example, I would be running uphill and my watch shows reducing heart rate..If it continues to do so, it may be a software bug or do a warranty exchange.

0 SkylaneT over 4 years ago in reply to AV8OR51

What do you mean by "bad" hikes? I dont have chest HRM anymore cause i lost it about half year ago. But I have all the readings with chest HRM for about 1000 of the same route hikes and the HRM readings are all pretty much similar. With chest HRM I've never had that kind of a readings where ascending heart rate would be lower then descending heart rate.

With Garmin D2 Air I've done 8 same hikings till now with same conditions, but only first 3 were OK.

I think that it must be a software bug because bad HRM readings started after watch updated.

0 SkylaneT over 4 years ago in reply to SkylaneT

Can you check what WHR Version do you have on D2 Air?

0 AV8OR51 over 4 years ago in reply to SkylaneT

I was referring to your graphs where you said your data was off. Check on the Venu forums if they reported similar bugs as well.

0 AV8OR51 over 4 years ago in reply to SkylaneT

I am not wearing D2 Air. I will check and report back. You may already know this, but, to make sure that you have the correct software, use Garmin Web Updater program to update your watch.

0 SkylaneT over 4 years ago in reply to AV8OR51

I've just read about garmin web updater and it seems that I have all the latest updates. Thx for help.

0 SkylaneT over 4 years ago in reply to SkylaneT

So I went to Venu forums to check out for a heart rate bugs and there was also some HRM readings problem after watch firmware/software was updated. Will try to do hard reset of the watch if there is one.

0 SkylaneT over 4 years ago in reply to SkylaneT

https://connect.garmin.com/modern/activity/5762945452

https://connect.garmin.com/modern/activity/5767661782

This is really not acceptable. Look at HRM graph. Did anyone else tried some activity and noticed strange HRM readings?

0 AV8OR51 over 4 years ago in reply to SkylaneT

What exactly are you referring to here? In my experience of owning a variety of Garmin watches over the past 5 years, I was never able to replicate the same HRM result for the same activity..it was similar/comparable but not the same. I always attributed the discrepancy to the difference in my physiological conditions such as diet, rest, sleep, fatigue, stress, etc, and the OHRM technology itself. If you think it is a bad sensor (which is very much possible), try exchanging for another unit.

0 SkylaneT over 4 years ago in reply to AV8OR51

I don't wanna replicate same HRM. I am aware that that is impossible and even inaccurate. If you look at the graphs, when I ascend up a hill HRM is lower then when I descent. This can't be right!? And I don't think it is a bad sensor, cause this started to happen after watch updated. It must be something with a software.

Look here is my first activity (same route as always) when I bought the watch: https://connect.garmin.com/modern/activity/5685022560, and after that there is 2 more activities with similar HRM readings. Then the watch updated and since than the readings are really bad. And this first 3 activities are similar/comparable to the activities with the belt strap that I used to have.

What I am trying to do before I return/exchange my watch, is to try to hard reset the watch (not just with Reset Data and settings) or somehow reload/reflash firmware.