The fitness tracker with high quality tracks your data wherever and whenever. SMART MESSAGE NOTIFICATION Via the high speed steady Bluetooth 4.0 Connaction, The Fitness Tracker will remind you all messages such as Calls, App supports most smart phones with Bluetooth 4.0. Support system: iOS 8.0 or above, Android Additional functions: health monitoring, information push, exercise tracking, intelligent reminder, sleep analysis, step, social entertainment, telecontrol self timer, heart rate and blood pressure