Smartphone market demand also rebounded in 2021，global smartphone shipments and domestic mobile phone shipments showed double growth，but the increase is still not ideal. The increase in the number of models and the reduction in price have led to the peak of the replacement trend of 5G mobile phones. The research and development of integrated fast charging technology will promote the rapid and healthy development of the industry，and folding screen mobile phones will also be favored by more consumers. At the same time，image，display and chip technology are all developing rapidly. Different from the mobile phone market，wearable devices and Internet of things devices are in the incremental market，the former shipments and the number of Internet of things connections are in a state of rapid growth. In the next few years，the integration of fast charging technology will achieve landing and application，more categories of terminal products will achieve the unification of charging protocols，greatly improve the user experience，and reduce the waste of electronic resources.