Fitbit charge HR Size small heart rate and activity wristband.

Fitbit charge HR Size small heart rate and activity wristband. Wristband tracker, two charging cables and a wireless sync dongle included. Automatic wrist based heart rate, continuous workout heart rate, better calorie tracker, fat burning & cardio zones, workout goals and summaries. Tracks activities and workouts steps, distance, floors climbed, calories burned, active minutes and time.