"Product details of ULTRA 7iN1 Straps 2.1 Inch HD Screen With 7 Different Straps Bluetooth Calling Smart Watch
Model number ultra Screen 2.1 inch IPS Chip OM6621-PG Waterproof IP68 Battery 360 mAh Normal use 2/3 days Material Body: Zinc alloy ABS; Strap: Silicon APP Hiwatch plus Bluetooth Version BT5.0 Compatible System IOS 10.0 and above, Android 5.0 and above "