Fitbit Charge 2 Heart Rate + Fitness Wristband, Black, Small (US Version) | Creative Products
PurePulse continuous, automatic wrist-based heart rate tracking to better measure calorie burn all day Maximize your workouts using simplified heart rate zones (Fat Burn, Cardio and Peak) See call, text & calendar notifications on the OLED display; Automatically track how long and how well you sleep and wake with a silent vibrating alarm Get a
