Compatabile with IOS and Andriod  GPS  Full Touch Screen  APP control  WaterProof & SweatProof  1,4 Inch Full Touch HD Color Screen  Real-time sleep monitoring  Heart rate measurement  in real-time  Cell Phone reminders not to miss important information  USB Charger  Voice Control Function Offline payment  Bluetooth call  App Wearfit Pro 128M Big Memory  200mAH Battery  13 Sports Functions, Running, Cycling, Swimming, Sit-ups  Weight training, Walking, Marathon  One Key answer hands-free call. Heart rate measurement  in real-time , Calories, Breth Training