What can a smartphone do?

Even with the same function, smart phones can also install programs, and the programs will be constantly upgraded, more user-friendly and more convenient to use.

Intelligent machines can perform multiple tasks and switch between them. For example, when you look at photos online, you don't need to close the browser, but put them in the background, or find a paragraph on the Internet and copy it into a short message one by one. It's troublesome not to multitask.

In addition, the smart phone can install new programs to add functions to the phone as needed, instead of replacing the phone when the smart phone wants to add any functions.