Display Screen: 2.01" AMOLED (390*450) Wireless Version: V5.3 Material: ABS/PC/zinc alloy Battery Type: Lithium polymer Battery Capacity: 350mAh Charging Time: 3 hours Normal Usage Time: 20 days Standby Time: 60 days Watch Size: 51.343.713.5mm Weight: 60g Waterproof: IP68 Note: oraimo Lab test results