Comfortable Wear: The device is very comfortable to wear as it is made almost entirely out of silicone and is very smooth(Medical Grade TPU Meterial)
AMS Heart rate sensor the stability of monitoring heart rate while exercising
Touching the screen ,you could easy to change the options choose the options you need.
Sleep Monitor: To monitor the quality of your sleep,ensure your health sleep.
Activity Tracking: Recording your activity, let you know yourself better.