The wearable devices focus on stylish, lightweight and compact design, as well as an easy-to-user interface. They not only measures various values during exercise, but also has GPS positioning, altitude calculation, and self-health management functions. At the same time, combined with IoT, data could be sent to the cloud for analysis and control. Other functions include mobile payment, telephone answering and information transmission. In addition, IP design and international green energy standard are able to cater to various types of users.