Fitbit Surge Fitness Superwatch, Black, Small (US Version) (Renewed)

About this item Surge syncs automatically and wirelessly to tablets, computers and 150+ leading iOS, Android and Windows smartphones using Bluetooth 4.0 wireless technology. Get continuous, automatic, wrist-based heart rate andsimplified heart rate zones Track workouts & view workout summaries; plus allday activities including steps, distance, calories burned, floors climbed and active minutes Monitor your sleep automatically and wake with a silent alarm