Set brightness or use Auto-Brightness
To adjust brightness, use Control Center. You can also do this from Settings, where you can find extra options like Auto-Brightness:
- Go to Settings > Display & Brightness.
- Drag the slider to the right or left.
- If your iOS device has an ambient-light sensor, you’ll see an Auto-Brightness setting under the slider. Auto-Brightness uses a light sensor to adjust brightness based on your surroundings. This setting can sometimes improve battery life.
If you want to raise or lower the Auto-Brightness levels, you can customize the setting:
- Go to Settings > Display & Brightness and turn on Auto-Brightness. The brightness slider moves according to the lighting conditions.
- Use the slider to adjust the Auto-Brightness setting.
If Auto-Brightness isn’t working as expected, reset it. Go to Settings > Display & Brightness and turn off Auto-Brightness. Then turn it on again.
Use Night Shift
Night Shift adjusts the color of your display after sunset.1 Many studies have shown that exposure to bright-blue light in the evening can affect your circadian rhythms and make it harder to fall asleep. After sunset, Night Shift will shift your display colors to the warmer end of the spectrum, making the display easier on your eyes. In the morning, your display returns to its regular settings.
There are two ways to turn Night Shift on and off:
- Swipe up to open Control Center. Tap to turn Night Shift on or off.
- Go to Settings > Display & Brightness > Night Shift.2 On the same screen, you can set a schedule and adjust color temperature.
By default, Night Shift turns on from sunset to sunrise.
Use True Tone display
You can use True Tone display with iPad Pro (9.7-inch). True Tone uses advanced multichannel sensors to adjust the color and intensity of your display to match the ambient light, so images appear more natural.
You can use True Tone display and Night Shift together or separately. Turn True Tone display on or off in Settings > Display & Brightness.2
Use Auto-Lock and Raise to Wake
After a period of inactivity, the Auto-Lock setting locks your screen with your passcode to help protect your personal information. Here's how to turn it on or off:
- Go to Settings > General > Auto-Lock.
- Choose an amount of inactivity* (from 30 Seconds up to 5 Minutes) that will turn off and lock your screen. Or to turn off Auto-Lock, select Never.
Raise to Wake turns on your screen as soon as you pick up your device. To turn this feature on or off, go to Settings > General > Display & Brightness. Raise to Wake works with iPhone 6s and later.
* When used for business or education purposes, some iOS devices might have passcode restrictions that prevent you from adjusting the Auto-Lock settings.
Change Text Size or use Bold Text
To display bigger or smaller text on your iOS device, go to Settings > General > Display & Brightness > Text Size and adjust the slider. You can also turn on Bold Text in Settings > General > Display & Brightness.
Maximize battery life
- Night Shift is available on iPhone 5s or later, iPad Pro, iPad Air or later, iPad mini 2 or later, and iPod touch (6th generation).
- Some display accessibility settings, including Invert Colors, Grayscale, and Increase Contrast, might turn off Night Shift or True Tone display.