Theoretically, after the 4G network was opened, the mobile phone could browse the web, watch videos, download files, and so on without limit as long as it controlled its usage behavior and did not waste data. But in fact, the usage of 4G networks was closely related to the usage behavior. If he didn't read novels, news, or videos on his phone, he could save a lot of data. For example, when a person browses the web, they usually load multiple pages, and each page consumes a certain amount of traffic. At the same time, watching videos would consume a lot of data, especially when watching high-definition videos online. Therefore, if you don't read mobile novels, read mobile news, or watch mobile videos, you can try to reduce the page loading time and video buffer time to make more effective use of the 4G network's bandwith and traffic. Theoretically, after the 4G network was opened, the mobile phone could browse the web, watch videos, download files, and so on without limit as long as it controlled its usage behavior and did not waste data.