this post was submitted on 22 Jul 2023
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How did you figure out it was piss poor? Compared with another tracker?
It certainly shows my heart rate going up by a lot when I'm in the gym.
I've got a Mi Band 6 and I think it guesses based on activity half the time. I just sat still and shook mine about, and it reckoned I was well over 120bpm, but manually checking and it's barely over 1 beat a second. Being half or double what it should be seems pretty common.
It could be because I've got hairy monkey arms, but my wife also found it to be poor with her old FitBit (which has shockingly bad phone connectivity instead) keeping much better track of it during exercise.
It's nothing vitally important, but you probably shouldn't use it for any actual athlete stuff.