“…Wearable health monitoring devices and monitoring systems have the following characteristics, light weight, removable, easy to carry, small size, intelligent display, wireless transmission, abnormal alarm, support for a long time, etc., and effectively apply the modern technology represented by sensor technology, wireless communication technology, chip technology, etc. In terms of the present stage, the scientific research personnel of wearable devices, as well as commercial companies, are given the focus on research and development work, also appearing on the market series of home health care equipment, such as household, particle size glucose meter, blood pressure, heart rate, and so on, devices have wireless data transmission function, based on the intelligent terminal, can realize the data real-time transmission and feedback [ 10 ]. Wearable devices not only meet the needs of users for medical and health monitoring, but also can not affect their daily life [ 11 ], so they are mostly in the form of chest bands, rings, clothing, watches, and so on.…”