Smartch D6 MTK6580 Core 1.3GHz 1GB 8GB 1.63 3G Smartwatch Phone Android 5.1 GPS WiFi Pedometer Heart Rate Monitor Smart Watch no 1 d6 1 63 inch 3g smartwatch phone android 5 1 mtk6580 quad core 1 3ghz 1gb ram gps wifi bluetooth 4 0 heart rate monitoring