When an iPhone or iPad is placed on its side and connected to a power source, a specialized display mode is activated. This mode presents a simplified interface, typically showing the current time, date, and battery percentage in a dimly lit, easily readable format. For example, if an iPhone is resting on a bedside table, plugged in, and displaying a large digital clock, it is utilizing this feature.
This functionality offers several advantages. It transforms the device into a convenient bedside clock, eliminating the need for a separate clock. Furthermore, the low-brightness display minimizes disruption to sleep, and the continuous display of charging status provides reassurance. Its historical context lies in mirroring the function of traditional bedside alarm clocks while integrating with modern mobile device capabilities.