Rainbuvvy DM90 Ultrathin Bluetooth Wristband 1.73inch AMOLED HD Full-touch Screen Bluetooth 5.4 IP68 Waterproof Dustproof Android Sports Watch

Model name: DM90 Watch head size (mm): 51.2*57.1*9.99MM Highlight: Zinc alloyed body、dustproof、drop-resistant、IP68 waterproof、replaceablestrap、 AMOLED full touch HD display 、big capacity battery 、100+ sports modes、accurate heart rate with liveness detection 、accurate blood oxygen 、women's health

CPU（Bluetooth MCU）: AB5691G Display: 1.73inch AMOLED HD display,DPI:466*466 Touch screen: full touch screen，Touch IC：CST820 Heart rate sensor: HX3918 :low power consumption, accurate heart rate and blood oxygen with liveness detection Accelerometer: STK8321 Speaker: 1508 MIC: support Bluetooth: support BLE 5.4 Vibrator: support\0820 Flat DC motor Battery: 400mAh polymer battery Crown: 1 pc Charging method: magnetic charging Waterproof level: IP68 Housing: zinc alloyed Back cover: IML pc back cover Strap: silicon /replaceable Box size (mm): 105*105*65mm