I've always found wrist HR to be junk. Followed all the tips etc as in stonehedge's link but never get anything reliable. I'm fairly hairy (but white and no tats) so that might affect it but when a gentle jog is registering over 200bpm the technology is useless.
I've always found wrist HR to be junk. Followed all the tips etc as in stonehedge's link but never get anything reliable. I'm fairly hairy (but white and no tats) so that might affect it but when a gentle jog is registering over 200bpm the technology is useless.