When the iPhone is in standby display charging mode, the phone's display will turn off when the iPhone is idle and the room is dim. In addition, if nothing is done after 20 seconds, the display will also turn off. However, if you select the \"Never\" option, the display will remain on while the \"Standby display\" is on.
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In addition, if your iPhone has been upgraded to iOS 17 or later, you can also activate the \"Standby display\" function, which uses the phone as a bedside clock, a digital photo frame, a display to view widgets, and a full-screen display to show live activity. To trigger this feature, you need to make sure that the phone remains in landscape position while charging, and generally, after a few moments, the screen will automatically light up and enter StandBy mode.
When the iPhone is in standby mode and plugged in to charge, the screen will display the charging icon and display the current charging percentage. In addition, the charging prompt will also appear at the top of the phone screen, indicating the current charging status and the remaining time of charging.
At the same time, the phone screen will remain bright to display charging information, and you can also click on the screen to see more charging information, such as charging speed and remaining charging time. In short, Apple's mobile phone will display relevant charging information when charging standby, so that users clearly understand the charging progress and remaining time.