DM80 4G Smart Watch Sports Bracelet WiFi GPS BT Smartwatch Touch Screen Android 8.1 Support Nano SIM Card Phone Call Heart Rate Monitor

fitness with features like step tracking, dynamic heart rate monitoring, blood oxygen level measurement, and optical live recognition for accurate health data.Durable and Versatile: With an IP67 waterproof, this smartwatch can withstand water splashes and, making it suitable for outdoor activities. The built-in 1000mAh lithium battery ensures long-lasting usage, keeping you connected throughout the day.Note: Please do not immerse the watch into or rinse with the water.Specifications:Model Number: DM80Type: On Wrist SmartwatchCommunication Program:2G:GSM: B3+B5+B83G:WCDMA: B1+B5+B84G:LTE-FDD: B1/B3/B5/B7/B8/B20LTE-TDD: B38+B39+B40+B41(100MHz)   System: Android 8.1 OSCPU Model: SL8541E Arm Cortex-A53 Quad-Cord CPURAM+ROM: 2GB+16GBScreen Size: 1.43inch AMOLED round screen, DPI:466*466Touch Screen: Capacitive touch screen, touch IC:CHSC6417, G+F structureHeart Rate Sensor: HX3918, High precision support for functions such as dynamic heart rate, true blood oxygen, HRV, heart rate optical live body recognition, etc.Network Mode: 4GNano SIM Card Slot: YesBT Version: 4.2 BLEWiFi: Support 2.4GHz, support 802.11b/g/nNavigation: Support GPS, COMPASS, GLONASSSpeaker: YesMic: YesWaterproof Grade: IP67 WaterproofBattery Capacity: 1000mAh Lithium polymer batteryCharging: Magnetic chargingShell Material: Sabic LDSBottom Shell: PC+IML craftBand Material: SiliconeColor: BlackProduct Size: 5.4*4.8*1.5cm, long strap 11.8cm, short strap 8.0cmItem Weight: 61g/2.15ozPackage Size: 11.2*11.2*7.3cm/4.41*4.41*2.87inPackage Weight: 201g/7.10ozPackage List:1* 4G Smartwatch1* Charging Cable1* User Manual