L The health smart watch for the elderly is based on sensing technology and integrates the Internet of Things, cloud computing and big data to realize the smooth remote connection between the elderly and their children. This smart watch, which is defined as "the most considerate to parents", has practical functions such as crisis alarm, fall judgment, heart rate monitoring, family call, sleep monitoring, sedentary reminder, location trajectory, weather forecast and so on. Especially in the aspects of fall judgment, chronic disease intervention, family contact, etc., it provides a brand-new experience and attracts the attention of many users.