Display Screen: 1.83" TFT (240*284); Wireless Version: V5.3; Material: ABS/PC Battery Type: Lithium polymer; Battery Capacity: 300mAh; Charging Time: 3 hours Normal Usage Time: 7 days; Standby Time: 28 days; Watch Size: 36.5*32*11.5mm Weight: 36.8g; Waterproof: IP68 *oraimo Lab test results