Always-On display is a handy feature available on some of the latest iPhone models. Instead of completely blacking out the screen when not in use, Always-On keeps it lit in order to make relevant information visible. Things that may be of ongoing interest could include the time, widgets, and notifications. If you would like to adjust how your phone behaves in these circumstances, we’re here to show you how to enable, disable, or customize the Always-On display feature on iOS 17 or earlier.