Sense Active Zone minutes not counting properly with custom heart rate

[Guy_]

Having Shutdown the watch and restarted it, the Active Zone minutes in the watch Today app seems only to be counting fat burn minutes, and possibly cardio, but no active minutes.

Is this a known issue since a few weeks?

[LokeAa]

@Guy_ 

Maybe, it seems to me it adds fatburn+cardio+peak. without multiplying cardio and peak by two. I wrote, maybe, because I am not sure that the 112 minutes in zone are'nt in fact 66 * 2? Understand what I'm trying to say?

[Guy_]

@LokeAa  found an old thread which indicates it seems to be a bug.

My watch face shows active minutes and active zone minutes and after a 20 minute walk (auto recognised) they both only registered 5 minutes.

What is odd is AZM now shows 0 for yesterday despite over 10,000 steps.

 as you can see the update to 44.128.6.12 (though it doesn't tell you the version that is pending) has not been done.

It was working but now think it way be due to a modification I made to the custom Heart rate zones (to test fixing the heart rate issue) that may have caused it to drop all basic activity.

Why it now shows 0 for yesterday is still a mystery.

[LokeAa]

10.000 steps and 0 AZM is no mystery. AZM relates to HR. I am always (unless I encounter a steep hill of some length) below zones when I'm walking, 

Edi: And yes, "modifying" HR zones will affect AZM. I would say any normal fit individual who gets AZM for normal walking in a flat terrain, should do a HR MAX test.

[Guy_]

@LokeAa  - but on the watch AZM it already clocked up 5  minutes yesterday and may be more in the afternoon, now showing 0 for yesterday.

[LokeAa]

I would think modifying HR also modifyes previous data. Otherwise, calculating a persons fitness score is impossible.

[Guy_]

@LokeAa  - quite possibly but the change was made over a week ago.

Just checked the Versa which is working fine and it too has 0 for yesterday, so it must be a bug in the app.

The day before the Versa did 42 AZM, the Sense 19, and that is with the Sense drastically over reading with any form of activity.

Have removed the custom heart rate test as it fixed nothing, will report back the results in a few days.

[Guy_]

If you are not getting the correct Active Zone minutes it may be because of Custom heart rate setting.

In the Fitbit App try clicking on the Heart rate tile, the Gear settings, Heart health and then check if you have Custom Zone ticked.

If so, go in and remove the settings, click Done at the top.

[Rb800]

Just bought a sense 2 to replace my charge 5 that was working great with AZM. No I have 0 or next to nothing with the same amount of activity. I have no custom heart rates set.  Next will do a factory reset to see if it makes a difference.

[LZeeW]

Hello @Rb800 and welcome to the Community.  The post about custom zones is incorrect.  A custom zone will give you different information for training purposes, but doesn’t change your AZM thresholds.

The Sense 2 and the Charge 5 have different optical heart monitors.  It’s possible they have different accuracy at higher heart rates.  You can compare your zone minute heart rate graphs to look for differences before and after your upgrade.  You can see this graph by tapping on your zone minute icon, then by swiping left on the zone minute area.

AZMs are based on heart rate.  Other users sometimes say they have a similar experience with different devices.