Zeblaze THOR PRO 1.53 Inch 1+16GB 3G WIFI Smartwatch Android 5.1 MTK6580 Quad Core 2.0 MP Camera Heart Rate Monitor Smart WatchKey Features...Support Nano SIM card and 2G GSM & 3G WCDMA network.Built-in GPS module, receive satellite GPS signal.1.53inch IPS Display touch screen with 320* 320 pixel, large and clear to see.Android 5.1, advanced CPU MTK6580 Quad core 1.3GHz, quick data processing. ROM..