Watch Nova 2 Lite-OSW-814L(Smart Watch) Display Screen: 1.93" AMOLED (368*448); Wireless Version: V5.3; Material: ABS/PC Battery Type: Lithium polymer; Battery Capacity: 300mAh; Charging Time: 3 hours Normal Usage Time: 8 days; Standby Time: 28 days; Watch Size: 41.32*38.3*9.7mm Weight: 41.22g; Waterproof: lP68