Oraimo Smart Watch OSW-30 Black

Screen Size: 1.39″ TFT 360*360 BT Version: V5.2 Battery Capacity: 260 mAh Battery Type: Lithium polymer Charging Time:2h Standby Time: 7 days Waterproof: IP68 Major Function : Meter Step、 Bluetooth Call、 Heart Rate、 Blood Oxygen Watch Size: 46*46*11mm（without strap） Weight: 39.8 g（with strap） Material: ABS/PC/Silica Gel Model: OSW-30