12-09-2018 12:04 PM - last edited 17-05-2019 12:35 PM by AntS ) in
I've read many posts regarding Samsung Gear Sport not tracking HR in workouts. Also that you get an error message launching manual measure in the heartrate app in the watch.
For me both things got solved by updating all software and rebooting the phone and the watch. Might not workouts for all but worked for me.