Heart Rate Zone is Wrong

[muellersjens]

Almost 2 years later and I see the same discrepancies. Might be a coincidence but I use the H10 as well. Suunto says I was in Zone 1 during 36% of the activity - I was constantly above, even when I started. The line chart (and the Laps section) seems to tell the true story here, despite some signal drop outs (was a hot day). In line with this Zone 1 haluzination, Suunto calculated an average heart rate of 127 which is absurd too given the line chart.
Any idea where this is coming from and when it will be fixed? .

[johann.fuehrer]

@muellersjens I have a Vertical 2 ant there are two kind of HF Zones possible. An overall one and one for dedicated sports like running. Can you check if you see the same in training settings and if the HF zones match? Just an idea…

And the app also has MaxHR & RestHR settings, maybe they play a role as well…

[muellersjens]

@johann.fuehrer thanks for your hint. The HF Zones are correct. I only use slightly different ones for cycling - this was a running activity just like any other. I had another run after this one and at least the error didn’t repeat.

[snow*]

@muellersjens said:

Any idea where this is coming from and when it will be fixed?

Same watch and same sensor and no issues here.
Is the H10 battery OK? Is the chest strap worn out?

[muellersjens]

@snow happy to hear that Yes all good. Maybe sweat and dropouts might play a role in this but this still doesn’t explain why Suunto interprets that one signal in different ways. Btw. I had two runs since then and the error didn’t repeat.

[Mff73]

@muellersjens
Did you check again your previous activity in the app?
HR is computed in the backend and sometimes it doesn’t appear good initially (if appearing at all).
After this, what is saying your watch logbook for zones duration for this activity? Correct or same discrepancy?

[sunter]

Hi,

I’ve noticed that something seems to be wrong with the HR zone data as well. On my Suunto Race watch, I have Zone 2 set to 103–125 bpm. Yesterday I went for a bike ride and intentionally stayed in Zone 2. However, my Suunto watch shows that I spent most of the ride in Zone 1, which is incorrect. On the other hand, Intervals.icu correctly shows that I spent most of the time in Zone 2.

I’m using a Garmin HRM 200 chest strap to measure my heart rate, but I don’t think that’s the issue. From what I can see, the problem is that the heart rate zones in the Suunto app are incorrect.

As I mentioned, I set my HR zones directly on the watch. Do I need to configure them somewhere else as well? I’ve only had the watch for about a week, so I’m still getting familiar with all its features.

Thanks!

[isazi]

@sunter do you have, by any chance, custom HR cycling zones on your watch?

[sunter]

Hi @isazi,

I set “Intensity zones” / “Default HR zones for all sports” according to upper image in intervals.icu.

“Intensity zones” / “Advanced zones” / “Running” - disabled
“Intensity zones” / “Advanced zones” / “Cycling” - disabled

[isazi]

@sunter for intervals.icu you set the zones there, so I cannot comment. For the discrepancy between Suunto App and watch, I see that your Z2 should be between 103 and 124 BPM and the app shows blue for that range instead. Is it still the case? If you check the activity in the logbook of the watch, what is the zone distribution?

[sunter]

Hi @isazi ,

I don’t have this activity in the watch logbook because I start my rides on my Hammerhead Karoo cycling computer, not on the Suunto watch. The activity is then synchronized to both Intervals.icu and Suunto.

In Intervals.icu, I can configure my HR zones manually, so they are displayed correctly for the activity.

For Suunto, as far as I know, HR zones can only be configured on the watch. I assumed those settings would also sync to the Suunto App, since I can’t find any HR zone settings in the app itself.

The issue, as you noticed, is that the Suunto App shows incorrect HR zones for the activity. I don’t know how to fix this, or if it is even possible to make the app use the correct HR zones for externally recorded activities. Do you know if there is any way to resolve this?