person using bright phone outside at night
It's easy to change your iPhone or iPad's auto-brightness settings.
Nico De Pasquale Photography/Getty Images
  • You can turn off auto-brightness on your iPhone or iPad from the Settings app.
  • Your iPhone and iPad have sensors that adjust the screen brightness based on surrounding light.
  • You can also manually adjust brightness in Settings or the Control Center.
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The auto-brightness feature on your iPhone or iPad automatically darkens the screen under bright lights, and lightens it in the dark.

While this option can be very convenient, it can also be an extra drain on the battery.

If you want to turn off the auto-brightness feature on your iPhone or iPad, you can do so from the Accessibility page in Settings. You can also manually adjust the brightness from the Control Center or from Settings.

Here's how to do it all.

How to turn off auto-brightness on iPhone or iPad

1. Open the Settings app on your iPhone or iPad.

2. Scroll down and select Accessibility.

Screenshot of Settings app on iPhone
In Settings, go to "Accessibility."
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3. On the Accessibility page, tap Display & Text Size.

Screenshot of Accessibility page on iPhone Settings app
Tap "Display & Text Size."
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4. At the very bottom of the page, tap the toggle button next to Auto-Brightness to turn it off, switching the button from green to grey.

Screenshot of Display & Text Size page on iPhone Settings app
When the button is grey, auto-brightness is turned off.
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How to manually adjust brightness on iPhone or iPad

You can manually adjust brightness in the Settings app or through the Control Center.

Through the Settings app:

1. Open the Settings app on your iPhone or iPad.

2. Scroll down and select Display & Brightness.

Screenshot of Settings homepage on iPhone
In Settings, go to "Display & Brightness."
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3. In the Brightness section of the page, move the slider to the right to brighten your screen, or to the left to dim your screen.

Screenshot of Display & Brightness page in iPhone Settings app
Move the slider to the left or right to adjust brightness.
Grace Eliza Goodwin/Insider

Through the Control Center:

1. Open the Control Center on your iPhone or iPad by swiping down from the top-right corner.

2. In the Control Center, swipe the brightness bar (indicated by a sun icon), up to brighten the screen or down to dim the screen.

Screenshot of iPhone Control Center
Swipe the brightness bar up or down.
Grace Eliza Goodwin/Insider

Meira Gebel and Marissa Perino contributed to previous versions of this article.

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