What does the standby display of Apple mobile phone mean?

The state of the Apple device when it is not in use.

The standby display of Apple's mobile phone refers to the state of the Apple device when it is not in use. On Apple devices, the standby display shows a circular battery icon, indicating that the battery power of the device is exhausted. When the user turns on the power supply, the Apple device will be charged immediately, and the standby icon will be displayed on the screen.

In the standby display state, users can view other functions by sliding the notification center or viewing the calendar application. Apple devices will automatically enter the standby display state when the power is lower than 10%, and will automatically enter the low power mode when the power is lower than 5%.