Set brightness or use Auto-Brightness
- To change your screen brightness, go to Settings > Display & Brightness and 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 your device’s light sensor to pick the right screen brightness based on your surroundings. Auto-Brightness can improve battery life in some situations.
To personalize Auto-Brightness:
- Go to Settings > Display & Brightness and turn on Auto-Brightness. You might notice that the brightness slider moves according to the current lighting conditions.
- Adjust the slider to set the Auto-Brightness yourself—and Auto-Brightness will pick future brightness settings based on that.
If Auto-Brightness isn’t working as expected, you can 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. Night Shift will shift the colors in your display to the warmer end of the spectrum after sunset, making it easier on your eyes. In the morning, it returns the display to its regular settings.
To turn Night Shift on or off, go to Settings > Display & Brightness > Night Shift.2
On the same screen, you can manually turn Night Shift on or off, set a schedule, and adjust color temperature. By default, Night Shift is active from sunset to sunrise.
You can also turn Night Shift on or off from Control Center.
Use True Tone display
You can use True Tone display with iPad Pro (9.7-inch). It 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
Screen brightness can affect battery life. To maximize your battery life, use Auto-Brightness or dim the screen. Learn about other ways to maximize battery life. You can also adjust brightness with Control Center.
- 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).
- Low Power Mode and some display-accessibility settings, including Invert Colors, Grayscale, and Increase Contrast, might turn off Night Shift or True Tone display.