Since the launch of the iPhone 13 Pro, Apple has added a new ProMotion display with up to 120Hz, allowing users to have a smoother experience. However, for a portable device with a small battery and a critical function, Some users may want to turn off 120 Hz in exchange for longer iPhone battery life. Now I will teach you how to limit the iPhone update rate to 60Hz.
The use of limit frame rate does not mean that the update rate of the locked display is 60Hz, but that the upper limit of the lock cannot exceed 60Hz. ProMotion's variable update rate will still operate when users are watching videos, using Always on Display, and viewing static information, so this setting is definitely designed to save power.
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