- When I have my Max hr zone set to auto detection it updates to a higher value than I achieved in the running activity. The watch asked if I wanted to accept the new Max hr from 190 to 193bpm and in that particular activity i only got it up to 170bpm, which is also the highest bpm I've ran at with this watch... When I first used the watch a few months ago it seemed more accurate but there's been a few activities where it keeps asking for me to accept a much higher value than what I've acheived. So as time has gone and now a few months through it seems completely inaccurate. I've never achieved higher than 170 and it's now set to 193.
Could someone from Garmin respond to this with any idea with what may going on here thanks.
