race 2 + HR strap = :/

mich heller

Hi there.

I’m having constant problems with HR sensor (polar H10). There are two issues:

watch cannot connect to sensor - need to unpair it and pair it again
sensor disconnects from watch during activity and I’m loosing HR data; maybe it’s not disconnecting, maybe problem is different, but I have no way of veryfying it during workout

sensor works fine with my other watch (apple watch ultra 2). never had any issues with it. fresh battery, watch shows 100% when connected.
watch is running 2.46.14
already sent logs via Suunto app

plz, do some more testing with external HR sensors - it’s one of most popular straps and it works like crap
as far as I seen on reddit, i’m not the only one with such problems

cheers!

larrybbaker

@mich-heller Have not tried my H10 since getting my R2 but my Morpheus HRM works without issue.

brianoverby

Can’t comment on the HR monitor you mentioned but I use the Coros HR monitor with my Race 2 - works great, connects immediately when I select an activity

Have you tried updating the firmware on your HR monitor?

Steven Hambleton

I used my Coospo chest strap yesterday without issues. Immediately connected and told me what the watch was connecting to.

2b2bff

@brianoverby with the Coros HRM as it is optical you won’t get ZoneSense, if that matters to you…

Nikolai

I have a serious problem with H10…
I have paired it to the watch but every time I start a workout it is very difficult to connect automatically.
The battery on the H10 is brand new and has no issue when I connect to Polar flow or a Garmin 955.
On the other hand Polar Verity sense behaves much better with the Race 2.
I have deleted and re-paired the H10 but the problem remains.
I am very annoyed by this problem.

herlas

@Nikolai current design to connect to HR devices is for each sports mode to remember the HR device it connected to and next time you open the same sport mode it’ll try to connect automatically to that device only. If you want to change to another one, you’ll have to search for it and selected it from the list. It might change in a future release but that’s the main thing to be aware of.

Nikolai

@herlas thank you very much for your reply.
To be honest I find this limitation very strange and I don’t remember having it in other watches in the past.

dani_degi

i extra bougth the HR strap from Suunto… but it lost often connection

i wear now HRM PRO … no problems an i can connect to ZWIFT and Race 2 at same time !!!

Nikolai

The problems continue…
I deleted Polar verity sense.
I kept only Polar H10.
I did two runs on the treadmill and two indoor cycling sessions and everything worked fine…Today I had a long run and the problems returned.
After 20 minutes, the watch lost the connection completely. Then it paired again but the were spikes in the readings.
This can’t be happening…
It is crazy for me that Suunto can’t find a solution to pair the watch to the most popular chestrap without problems.
Any other ideas guys???
Should I reset the H10 for the first time after 4 years of usage without any issues?

mich heller

sooo i dug out from the bootom of the closet my over 10 years old suunto smart hr belt. it’s rusty, it smells like hell, no amount of soap can wash the smell off… but at least it works looks like if you don’t wan’t the troubles, go with suunto strap

MarkG

@Nikolai
I have previously had some issues with H10. Invariably they were traced to wear on the inside of the strap itself, not the actual unit. I found the strap wore out after perhaps six months of use (maybe 5 runs a week on average). If you turn the strap inside out and gently fold it back against it’s normal curvature you might notice tiny cracks in the sensor pads. These often aren’t visible the ‘right way round’. A new strap (even a compatible cheap one from eBay) usually solved the problem.
Hope this helps.

Nikolai

@MarkG thank you very much for the proposal.
I am almost certain that it is a problem of the watch, because I have been using Polar H10 strap for the past 4 years with two Garmin watches and I never had any issues.
The battery on the strap is brand new.
I am disappointed.
I have switched to Polar verity sense which seems to work much better with the watch.

MarkG

@Nikolai
Cheers Nikolai. I’ve also got a verity sense which is what I use virtually all the time and have had no problems with it at all. However I might be going back to the H10 to give Zonesense a try once Santa brings my V2.
Shame the Polar won’t work with it - I find it a lot more convenient and reliable and all my HR readings correspond with what I expect after years of using chest straps.