Advanced fitness monitor, pedometer and calorie counter are utilized to help you reach your life fitness goals.Built-in sensors which displays your heart rate, tracking and reminding the data during every sport moment, helping you arrange exercise time and intensity freely.IP67 waterproof design allow your wearing to wash hands or take a shower, effectively protect the device from brief soaking.Lift your wrist or turn over your wrist, bright the screen.Back clip charging method is convenient and easy to use.