Features:CPU MTK6580 quad core 1.3GHZ, ROM 4GB + RAM 512MB  Aluminium watchcase with anodic oxidation processing, CNC manufacturing 1.39 inch UHD AMOLED whole round screen, resolution 400*400 pixel, OGS capacitive screenBuilt-in Android 5.1 OS, easy online upgrade operating system3G supported, Nano

Features:CPU MTK6580 quad core 1.3GHZ, ROM 4GB + RAM 512MB  Aluminium watchcase with anodic oxidation processing, CNC manufacturing 1.39 inch UHD AMOLED whole round screen, resolution 400*400 pixel, OGS capacitive screenBuilt-in Android 5.1 OS, easy online upgrade operating system3G supported, Nano SIM 3G WCDMA 850/2100 or customized,2G GSM 850/900/1800/1900 quad-bandsBluetooth 4.0 + WIFI Accurate GPS positioning  Camera 2.0 Mega pixelBattery: 400mAhCharging Times:2 hoursStandby time: about 2 daysNormal using time: about 1 dayVideo playing time: about 4 hoursSupport pedometer, heart rating, anti-theft etc. Support both IOS and Android phone connecting Main 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 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 usable memory is about 2GBThe App is "Sinwear" APK, you can find the QR code in "setting-mobile assistant". It can work with Android 5.0, iOS 7.0 or above.It is not recommended to keep (Auto-Light on) Function, because battery will be consumed faster.It is always recommended to end any process you are not using to save battery. Specifications:Basic InformationBrandKingwearModelKW88ColorWhite.MaterialAluminium, Anodic Oxidation, CNCHardware SpecificationCPU MTK6580 Quad core 1.3Ghz  OSAndroid 5.1 RAM512MBROM4GB SIM cardNano Sim; 3G network, WCDMADisplay1.39 inch AMOLED whole round HD；resolution：400*400 pixel；260000 coloursTouch screenOGS Capacitive Screen, full bonding technologyG-sensorYesHeart rate sensorYesSensor HubYesSpeakerEnclosed speakerMicYesBluetoothVer 4.0, compatible for both IOS and Android.Battery400 mAh High Power Polymer batteryCharger4 pins magnetic connecting, charge and data transferMain FunctionPhone function3G WCDMA 850/2100 or customized; 2G GSM 850/900/1800/1900 quad-bands；SMSSupportCaller ID displaySupportWIFISupportGPSSupportMusicSupportHeart rate monitorYes, the real sensor, accurateness above 95%PedometerYes, automatically running, including Step records, Calories calculation, Distance calculation;Camera2.0 mega pixelOS online upgradeYesInfo Bluetooth sync YesScreen on gestureYesGoogle mapYesGoogle PlayYesVoice assistantYesVoice inputYesWeatherYesSound recorderYesBrowserYesCalendarYesApplicationsdownload, install and uninstall, 2 modes of UI patent designAnti-lostAnti-lost remindRemote controlBidirectional search；Remote control musicRemote control cameraWatch face11 types patent design watch facesDimensions & WeightItem sizeApprox.5.6 * 4.6 * 1.35 cmItem weightApprox. 63 gPackage sizeApprox.10.5 * 10.5 * 7.8 cmPackage weightApprox. 256 gPackage List:1 * Kingwear KW88 Smartwatch1 * Screwdriver1 * Protective Screen Film1 * User Manual (English)