Main control chip: RTL8763EWE Memory size: 128Mb G-sensor model: SC7A20 Heart rate sensor: VC30F Touch panel: G+F step cover plate, fully fitted, Hai Li Chuang 816D Display screen specification: 1.8-inch IPS color screen resolution 360 * 360 Button method: 3 side keys (1 power key+1 motion mode shortcut key+encoder) Battery type: 900mAh (lithium polymer pure cobalt battery) Charging method: magnetic suction charging Motor type: Non SMT motor 0827 Horn: 0916 five magnetic soldering wire MiTou: 0415 with silicone cover Bluetooth mode: dual Bluetooth BLE5.0+BT3.0 Standby time: 10-12 days of normal use Waterproof grade: IP68 Watch size: diameter 57mm * thickness 13.8mm Net weight of watch: 200 grams Watch packaging gross weight: 310 grams Packaging size: 100 * 100 * 68mm Packaging content: Instruction manual * 1, charging cable * 1