What is the screen size of the mobile phone?

The screen size of a mobile phone is usually 4 inches to 5 inches. Generally speaking, the screen size of smart phones is between 4 inches and 7 inches, of which 4 inches to 5 inches is a common screen size. It should be noted that a large screen size does not mean a high screen resolution. When buying a mobile phone, factors such as screen size, resolution and display effect need to be considered comprehensively.