Smartwatch 4G LTE,with GPS Tracker That Combines Video Voice and Wi-Fi Call,Messaging,NFC,2 Cameras,Adult and Adult Smart Watch Brief introduction of function Feature 1Android 8.1 operating system Feature 2Hd dual camera camera 200W+800W Feature 3Quad-core CPU Feature 4Heart rate detection Feature 5WIFI wireless fast internet access Feature 6Bluetooth 4.2 Feature 72.03 inch HD square screen Feature 8Step counting, multi-motion mode Feature 9Built-in Play Store(Support to download APP) Basic parameter Watch type: 4G Android smart watch Main screen size: 2.03 inch HD square screen Touch screen: G+F full fit Home screen resolution: 320*386 Network type: Single SIM card Network mode: GSM/WCDMA/LTE Supported frequency bands: GSMB2/B3/B5/B8 WCDMAB1/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 keys Body color: gun color, silver Operating system: based on Android OS v8.1 Number of cores: four cores CPU model:SC9832E Memory: 2G+16G, 4G+64G SIM card type: SIM card (small card Nano SIM card) Battery type: built-in battery Battery capacity: 800mAh Input method: Handwriting Call History: Received + Dialed + Missed Calls Contacts: Business card storage Other:Short Message (SMS), recording function, alarm clock function, timer, stopwatch, real-time weather. Calendar function, WIFI, Bluetooth, photo camera, music video playback, GPS navigation, etc Audio format: MP3/AAC/AAC+/WMA/DRA/AMR-NB Image formats: JPG, JPEG, BMP Video decoding format: 1920x1080 @30fps;(H.264/MPEG4) codec; Supported formats MPEG4 Encoder, H.264 Encoder, MPEG4 Decoder, H.263 Decoder, VP8 Decoder, H.264 Decoder, Camera: Built-in mini camera Camera pixels: HD 2 million + 800W Sensor type: CMOS Language Chinese (Simplified), Chinese (Traditional), Arabic , Dutch Belgium), English (United States), French, GerAdult, Italian (Switzerland), Portuguese, Spanish, Croatian, Czech, Danish, Indonesian, Japanese, Korean (Korean), Malay, Polish, Russian, Turkish, Catalan (Spain), Slovak, Burmese (official), Cambodian, Estonian, Nepali, Hebrew, Vietnamese