Kubin PGD 4G Android Smart Watch WITH DUAL CAMERAMemory: 2GB RAM , 16GB ROMSIM card type: SIM card (small card Nano SIM card)Battery type: built-in batteryBattery capacity: 800mAhWatch type: 4G Android smart watchDesign: WatchMain screen size: 2.03 inch HD square screenTouch screen: G+F full fitHome screen resolution: 320*386Network type: single SIM cardNetwork mode: GSM/WCDMA/LTESupported frequency bands:GSM:B2/B3/B5/B8 WCDMA:B1/B2/B5/B8  LTE_FDD:B1/B2/B3/B5/B7/B8/B20  LTE-TDD:B38/39/40/41(100MHz)Key type: virtual QWERTY keyboard +2 side keysBody color: gun color, silverWatch size: 51 * 46 * 15.6mm.Mobile phone weight: 85gHardware parametersOperating system: based on Android OS v8.1Number of cores: four coresCPU model:SC9832EFeature Feature 1:Android 8.1 operating systemFeature 2:Hd dual camera camera 200W+800WFeature 3:Quad-core CPU Feature 4:Heart rate detectionFeature 5:WIFI wireless fast internet access Feature 6:Bluetooth 4.2Feature 7:2.03 inch HD square screenFeature 8:Step counting, multi-motion modeFeature 9:Implantation    Facebook, Messenger, LINE, BING, PayPal, Gmail, Whatsapp, twitter, nstagram, Telegram, Chrome, outlook.com, Yahoo Mail and other applications...