My new forerunner 965 measures wristbased heartrate intermittently. I worked fine when I got the watch 3 weeks ago and then just started to be very inconsistent with the measurements and very intermittent. How can I try to solve this?
My new forerunner 965 measures wristbased heartrate intermittently. I worked fine when I got the watch 3 weeks ago and then just started to be very inconsistent with the measurements and very intermittent. How can I try to solve this?