Title: Mibro Watch C2 1.69-inch HD Screen 24H Heart Rate Monitoring 20 Sports Modes 2ATM Waterproof Long Battery Life Features£º -1.69-inch HD screen,Large screen for large view.Information reminder for easy check.Watch functions on one screen. -24-Hours Heart Rate Monitoring.Three early warning modes of exercise, resting and sleep 24h heart rate monitoring helps you better know your physical conditions and sports status, and supports warning of high heart rate. -Blood oxygen saturation measurement.Optical 5p02 sensor measures Sp02 at any time.It helps measure at any time when you feel uncomfortable outdoor. -20 Sports Mode.It automatically recognizes the running mode and displays the exercise data in real time. It also accurately monitors the heart rate and records exercise consumption for improved exercise efficiency. -2ATM Waterproof.2ATM waterproof empowers a vital and easy life for immersive experience Specification£º Product Name£ºMibro Watch C2 Watch Size£º4535.311.2mm Strap