I just got a vivosport 1 week ago. RHR measurements seem accurate as does HR during light activity. However, I have done 2 runs and one bike ride that have shown average heart rates that cannot possibly be correct. I have searched the forum and the internet and it seems that the most common problem is for the HRM to UNDERestimate true HR, not overestimate as I believe it is doing.
Some examples:
On a 29km bike ride on mostly flat terrain, my average HR was recorded as 158 bpm. It calculated a majority of the ride being in zone 4. I can tell you, I was definitely not in zone 4.
On a 3km run, my average HR was recorded as 175 bpm. On another 4km run, it was recorded as 176 bpm. Essentially it's telling me that I'm in zone 5 for 15-20 minutes straight which makes no sense, and I was not near exhaustion.
I have adjusted the band. I have changed the position of the watch on my wrist. I have cleaned it. At the end of my run today, when I saw the average HR of 175, I palpated my carotid pulse for a full minute as I cooled down to compare to the watch. I palpated a HR of 127, while the watch said 142.
Does anyone else have experience with HR measurements being too high during activity???
