With the development of mobile technology, many traditional electronic products have also begun to add mobile functions. For example, watches that can only be used to see the time in the past can also be connected to the Internet through smart phones or home networks to display caller information, WeChat and Weather information and other content. This new watch can be called a smart watch. This type of product is mainly designed for consumers to use in situations where it is inconvenient to use a smart phone, such as when they are riding a bicycle or carrying something in their hands.