Smart Watch waterproof to 50 m, monochrome display, optional appearance of the display, mirroring notifications Smartphone (call, SMS, e-mail, calendar, Facebook, Viber, What's up, etc.), monitors the activity (steps, distance, sleep, calories burned), control music, alarm clock, Bluetooth 4.0, requires iOS 8.0 / Android 4.4 / Windows Phone 10 or higher, wrist circumference of 17.5 cm to 20.5 cm, battery life of 30 days