Featuresr cpu mtk6580 quad core 13ghz quicker data processingr rom 16g ram 1g larger than normal watchr 13 amoled touch screen resolution 400400 pixelr nano sim card slot support 2g gsm 3g wcdmar 20mp hd camera for taking pictures and video recordr android 51 os easy online upgrade r 350mah battery 2 3 days standby timer water proof for hand washing water splashingr other function gps navigation voice assistant bt 40 wifi heart rate pedometer calorie alarm music