Description Model number i30 PRO MAX SUIT Screen HD 2.3 large screen Chip JQ7011 Waterproof life waterproof Battery 220 mAh Normal use 3-5 days Material Body: Zinc alloy ABS; Strap: Silicon APP Hiwatch Ultra Bluetooth Version BT5.0 Compatible System IOS 9.0 and above, Android 5.0 and above