The personal trainer you wear on your wrist! It syncs with your smartphone, allowing you to track activity and goals while monitoring steps, heart rate, calories burned, distance and sleep. It also has multi-sport modes and notifies you of incoming calls and texts. Water-resistant (5 ATM). Compatible with Android 4.4 or higher and iOS 8.0 and higher. Bluetooth connectivity. Rechargeable battery (up to 6-day life), USB charging cable and charging dock included. 8" band; 1 1/2" l x 1 1/2" w x 1/4" thick.