No watch HR when wearing a HRM belt when not in an activity

If my watch discovers that I am wearing a HRM belt when not in an activity, the watch will disable the OHR. Good!

However, it will not use the signal from the HRM belt. So the HR graph in the watch is empty for the time I have been wearing the belt.

Seems like a bug to me. Either the watch should keep the OHR turned on an use the HR from the OHR, or it should switch off the OHR and use the HR from the HRM belt. Switching off the OHR and then continue trying to get HR from the OHR will not really work.

I haven't had a watch with an OHR for that long, so I don't know if it is a new behaviour.

0 brookes2622 over 6 years ago

I have, sort of, similar issue when the watch connects to my bluetooth HRM (Polar OH1) when it is charging. While I reckon that's a flaw with the OH1, advertising while charging, the watch will sometimes stay connected displaying 0bpm, expected, for hours until I restart it.

I agree that the watch should use the HRM that it is connected to either on wrist or chest strap, preferring the external over the wrist but it also needs to check from time to time that the reading is not 0.

0 AllanOlesen67 over 6 years ago

I see it with ANT+, both with HRM-RUN and HRM-TRI.

0 AllanOlesen67 over 6 years ago

When so, the OHR should only shut off when going into the Garmin heart rate graph widget.
Being in the HR widget the HRM belt should work.
Leaving the HR widget, OHR should kick back in.

When you write "should", do you mean that this is the intended behaviour, or is it just the behaviour which happens to be?

0 jim_m_58 over 6 years ago

I've tried this with the Garmin HRM band, and it connected when I start an activity, disconnects when I end the activity, and when it's disconnected, the OHRM is used. Tried both native and CIQ activities.

update: there does seem to be something odd, as after the activity the green lights come on, but the watch doesn't seem to be using the readings from either the OHRM or band.

0 brookes2622 over 6 years ago

update: there does seem to be something odd, as after the activity the green lights come on, but the watch doesn't seem to be using the readings from either the OHRM or band.

I think that is the behaviour I am experiencing so perhaps it does not matter the HRM in use. I have, and use, Garmin HRM's Swim and Run and I cannot say I have experienced the problem with them but that maybe because I am just blaming the Polar.

Can I assume you needed to restart the watch?

0 HrLover over 6 years ago

I think that is the behaviour I am experiencing so perhaps it does not matter the HRM in use. I have, and use, Garmin HRM's Swim and Run and I cannot say I have experienced the problem with them but that maybe because I am just blaming the Polar.

Can I assume you needed to restart the watch?

I also experience the fenix not to read the polar h10 all day.
Only when I'm in the HR widget will it get polar h10 data but once out of the widget and back to watch face there is no Hr data.

How does one have the fenix use only the polar chest strap, at all times that I wear it?

0 brookes2622 over 6 years ago

So I did a bit of testing, so to speak. I start the HR widget then observed the reading and it was OK i.e ~70 bpm. I would plug the OH1 into the charger and the HR would read as 0. Now this is not ideal, obviously, as the OH1 is not being worn it is on charge. I reported this behaviour to Polar but they don't care. So, I unplugged the OH1 from the charger. The widget noticed the disconnection and changed to "measuring" where it would stay, indefinitely, or me power cycling the watch. I did this 3 times over a 40 minute period with the same results always back to "measuring". The green LEDs are on but no data.

There is something wrong when switching back to the wrist based heart rate monitor that requires restarting the watch to get it working again.

This never happened with the 5x which I have been using with the OH1 for months and months.