M4 Max smartband is equipped with g-sensor, heart rate sensor. There is also a blood pressure monitor, blood oxygen monitor. The M4 Max smartband has Bluetooth 4.0 and compatible with Android 4.4 and iOS 8.2 and above.
The smartband has a step counter, distance tracking, calorie counter, sleep monitoring, sports mode such as cycling, running, badminton. Additional functions included are alarm, call and message notifications, social app notifications, stop watch, calendar, anti-lost, camera remote control.