20.26 heart rate accuracy

Yoder 2 months ago

After the update yesterday heart rate was totally wacky today. During harder efforts hr dropped and was at least 20 beats low, and in slower efforts it was 20bpm high!

Thankfully I recently bought a Coros armband. Looks like I'll be relying on a sub $100 armband for accurate hr instead of my $600 Garmin.

Other than breaking the hrm the update provided some nice things.

Top Replies

rundad86 2 months ago +1

I don’t think the broken optical HR is new. There have been threads reporting whacky HR (under-reading for long periods, during intervals) since 18.xx firmware. Definitely need a 3rd party sensor if you…
Yoder 2 months ago in reply to rundad86 +1

Yep I hear you. My 955 was pretty rock solid with the hrm until this update though.
Grumpy from dawn till dusk 2 months ago in reply to rundad86 +1

rundad86 said:
I don’t think the broken optical HR is new.

No it isn't.

I will have to reanimate the thread for it. Unfortunately, for me it keeps on having uge jumps (underestimating at first, then…

All Replies

0 rundad86 2 months ago

I don’t think the broken optical HR is new. There have been threads reporting whacky HR (under-reading for long periods, during intervals) since 18.xx firmware. Definitely need a 3rd party sensor if you want good HR data. I agree it sucks given the price

0 Yoder 2 months ago in reply to rundad86

Yep I hear you. My 955 was pretty rock solid with the hrm until this update though.

0 rundad86 2 months ago in reply to Yoder

I’ve seen the Coros armband. How do you find it? I use the H10 strap here personally and find it great but was considering an optical arm strap at one stage

0 Yoder 2 months ago in reply to rundad86

I really like the Coros. It just plain works as advertised. I've had it for a couple of months and I've done testing between it and my 955 and until this last update they were within a couple bpm of each other.

0 Grumpy from dawn till dusk 2 months ago in reply to rundad86

rundad86 said:
I don’t think the broken optical HR is new.

No it isn't.

I will have to reanimate the thread for it. Unfortunately, for me it keeps on having uge jumps (underestimating at first, then suddenly jumping up 50 beats or so) when I use the optical HRM during commuting with a bike.
Does not impact me too much, as for training I always use external HRM straps and for walking and hiking the values seem to be ok, but still it is an error and for me it is still not fixed.

0 Lewis 2 months ago in reply to Grumpy from dawn till dusk

I solved this issue reseting to defaults the watch,

0 Grumpy from dawn till dusk 2 months ago in reply to Lewis

Sounds interesting.

Can you explain exactly, which steps you did?
I would not mind resetting watch and acitivity settings once, but I would hate to do a full factory reset and lose data for HRV and things alike.