With one of its newer features, Apple seems to acknowledge a simple fact: People use the company's handheld devices a lot.
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What is True Tone on an iPhone?
True Tone is an "advanced" sensor feature that adapts the screen's brightness and colors to its surrounding lighting.
If, for example, you're using your iPhone and sitting in front of a bright orange bonfire, with True Tone, your screen will display more warmer colors at a lower intensity to cohesively match the environment.
The feature is available for the iPhone 8 and newer devices, and can be turned on and off using Settings or Control Center.
How to enable True Tone on your iPhone through Settings
1. Open Settings from your iPhone's home screen.
2. In Settings, scroll to find and select Display & Brightness.
3. Under Brightness, tap the icon to turn True Tone on — once turned on, the button will appear green. Your display will now automatically adjust to "match the ambient light" in your surroundings.
4. Most newer iPhones have True Tone enabled by default. To disable, follow the previous steps, but deselect True Tone.
How to enable True Tone on your iPhone through Control Center
1. To access Control Center, pull your finger up from the bottom of your iPhone's screen (or from the upper right corner on an iPhone X or later). This can be done whether your iPhone is locked or unlocked.
2. Find the Brightness slider (next to the volume slider). Press and hold the sun icon.
3. In the bottom right-hand corner, find True Tone. Tap to turn True Tone on or off.
True Tone is a similar feature to Apple's Night Shift, which also alters the colors and brightness on your screen during the evening and early morning hours.
For more information on the iPhone's brightness features, read our article, "'Why does the brightness keep changing on my iPhone?': How to turn off auto-brightness and Night Shift, and adjust your brightness manually."