Smart Watch Haylou RS4 Black Touch Screen Square Shape

Brand & Model: Haylou RS4 LS12 Workout modes: 12 , Alipay Offline Payment Watch Size: 45mm Waterproof: IP68 waterproof, SpO2 tracking Display: 1.78″ (368 x 448) AMOLED display Battery: Battery capacity: 230 mAh, About 12 days (24 hours heart rate monitoring) Connectivity: Bluetooth V5.1 OS: Android 6.0 and above, iOS 11.0 and above. Supported functions will vary with different watches, mobile phones, and countries. Sensor: Heart rate sensor, motion sensor, blood oxygen sensor Dimension: 45.2 x 37.2 x 11.1mm, Strap width: 20mm Weight: Watch weight 48.6g (with strap) Color: Black, Silver Warranty: 06-months Warranty