1.3" IPS round display 240*240 in resolution MT6580 quad core processor RAM 512MB + 8GB in flash OS Android 5.1 Bluetooth / GPS / Wi Fi Supported Frequency Band: 2G: GSM 850/900/1900/2100/ 3G: WCDMA 850/1900/2100 Display moving to light it Stylish popular private clock interface for choice Heart rate monitor, pedometer 450 m Ah built-in battery Available android smart phone for connection to get notification for incoming message & notification for hone call As many as 50 styles of clock mode 2MP camera Largest extend memory for 32GB Note: Because the smart watch app & software has occupied about 2GB memory, the rest free using memory is about 6GB. Display: 1.3 inch screen CPU: MTK6580 1.2 G Hz Quad Core System: Android 5.1 RAM+ROM: 512MB RAM + 8GB ROM Bluetooth: 4.0 SIM type: Single Nano SIM Camera: 2MP Functions: IP65 Waterproof, GPS, OTA, Pedometer, Message, Music, Weather, Clock, Browser Network: GSM: 850/900/1800/1900 M Hz WCDMA: 850/2100 M Hz