Fitbit Charge HR Wireless Activity Wristband (Black, Large (6.2 – 7.6 in). .. Wrist based heart rate monitoring is still in its infancy and if, and I stress if, you are so .
Make every beat count with Charge HRâ€”a wristband with continuous, wrist-based. Track steps, distance, calories burned, floors climbed, active minutes, heart rate, hourly activity & stationary time. . Set sleep goals, review sleep quality