Feature: 100% brand new and high quality. Quantity: 1 CPU MTK6580 quad core 1.3GHZ, ROM 4GB + RAM 512MB Aluminum watchcase with anodic oxidation processing,CNC manufacturing 1.39 inch UHD AMOLED whole round screen, resolution 400*400 pixel,OGS capacitive screen Built-in Android 5.1 OS, easy online upgrade operating system 3G supported, Nano SIM 3G WCDMA 850/2100 or customized,2G GSM 850/900/1800/1900 quad-bands Bluetooth 4.0 +WIFI Accurate GPS positioning Camera 2.0 Mega pixel Battery:400mAh Standby time: about 2 days Video playing time: about 2 hours Support pedometer, heart rating, anti-theft etc. Support both IOS and Andriod phone connectingMain Functions: Phone call,SMS,Caller ID display,WIFI,GPS,Heart Rate,OS online upgrade,Info bluetooth sync Screen on gesture,Google map,Google play,Voice assistant,Weather,Brower,Anti-lost,remote control etc.Languages: English,French,Germany,Spanish,Italia,Portuguese(Portugal),Portuguese (Brasil) Polish,Turkish,Arabic,Persian,Russian,Hebrew,Korea,Thai,Vietnam,Indonesia,Bengali,Japanese,Simplified Chinese,Traditional ChineseNote: Because the smart watch app and software has occupied about 2GB memory, the rest free using memory is about 2GB. The APP is "Sinwear" APK ,it can work with Android 5.0 and IOS 7.0 or above phone. Not recommended to always stay "auto-light" on function for the battery will be comsumed faster.Package Content: 1KW88 Smart Watch 1Charging Cable 1English User Manual