Display Screen: 2.01 TFT 240*296 BT Version: V5.3 Material: ABS/PC/Silica gel Battery Capacity: 300mAh Battery Type: Lithium polymer Rated Voltage: 5V Charging Time: 3 hours Normal Usage Time: 7 days Standby Time: More than 20 days Watch Size: 47.8*39.2*10.95mm Waterproof: IP68 *oraimo Lab test results.