iOS 17: How to Turn Off Auto Brightness on iPhone Easily

Turning off auto-brightness on an iPhone with iOS 17 is simple. Navigate to Settings, select Accessibility, tap Display & Text Size, and then switch off the Auto-Brightness toggle. Now, you’re in control of your screen’s brightness!

After you complete this action, your iPhone will no longer automatically adjust the screen brightness based on your environment. You’ll need to manually adjust it as needed.

You can also check out this video about how to turn off auto brightness on iPhone for more on this subject.


Have you ever noticed how your iPhone’s screen brightness changes on its own? Isn’t it annoying when you’re just getting settled into reading an article or watching a video, and the screen dims or brightens without your input? That’s the work of the auto-brightness feature, which is designed to adjust the screen brightness based on the ambient light. While the intention is to optimize your viewing experience and battery life, it’s not always what you want. If you prefer to control your screen’s brightness yourself, disabling the auto-brightness feature on your iPhone running iOS 17 is the way to go.

Understanding how to manage your iPhone’s settings can significantly improve your user experience. Whether you’re in a dark room and don’t want the screen too bright or you’re outdoors and need a little extra light to see your screen, turning off auto-brightness puts the power in your hands. This article is perfect for iPhone users who value having control over their device’s settings and are running the latest iOS 17 software.

Related: How to Enable or Disable Auto Brightness on iPhone 14

The Step by Step Tutorial to Turn Off Auto Brightness on iPhone

Before we dive into the steps, it’s worth noting that turning off auto-brightness will require you to manually adjust your screen brightness from now on. But don’t worry, it’s as easy as swiping up from the bottom of your screen (or down from the top-right corner on X and later models) and adjusting the brightness slider.

Step 1: Open Settings

Start by tapping the Settings app on your iPhone.

The Settings app is where you can tweak and customize all aspects of your iPhone experience, from sounds to wallpapers to privacy settings.

Step 2: Select Accessibility

Scroll down and select Accessibility, which is home to all of the iPhone’s accessibility features.

Accessibility settings are designed to make your iPhone more user-friendly, particularly for those with disabilities, but they also contain some hidden gems for general use.

Step 3: Tap Display & Text Size

Within the Accessibility settings, find and tap Display & Text Size.

This section is mostly for adjusting how text appears on your screen, but it’s also where the auto-brightness toggle is located.

Step 4: Switch Off Auto-Brightness

At the bottom of the Display & Text Size menu, you’ll find the Auto-Brightness toggle. Switch it off to disable the feature.

With auto-brightness turned off, your iPhone will maintain the screen brightness level that you set, regardless of the lighting conditions around you.


Manual ControlBeing able to adjust the brightness to your preference at any time can be more satisfying than relying on an automatic system.
Battery SavingsBy managing the brightness yourself, you might be able to conserve battery life more effectively than the auto-brightness feature.
ConsistencyWith auto-brightness turned off, your screen brightness stays consistent, providing a uniform experience that’s not disrupted by sudden changes.


Frequent Adjustments NeededYou’ll need to adjust the brightness manually depending on your environment, which can be a hassle for some users.
Potential Eye StrainWithout auto-adjustment, you might not always choose the optimal brightness for your eyes, leading to discomfort.
Battery DrainIf you forget to lower the brightness in well-lit areas, you could drain your battery faster than if auto-brightness was enabled.

Video About Auto Brightness

Additional Information

When you decide to take control of your iPhone’s brightness settings, there’s more to consider than just the on-screen experience. Did you know that prolonged exposure to bright screens can impact your sleep? It’s true! That’s why it’s crucial to adjust your screen brightness, especially in the evening hours. Lowering the brightness can help your body prepare for sleep and prevent the blue light from keeping you awake.

On the other hand, if you’re someone who spends a lot of time outdoors, you may find that turning off auto-brightness means your screen is often too dim to see in direct sunlight. In such cases, be prepared to manually crank up the brightness to counter the sun’s glare. Remember, the aim is to find that sweet spot where the screen is visible, but not so bright that it drains your battery unnecessarily or causes eye strain.

Lastly, while auto-brightness can be a handy feature, it’s not perfect. Sometimes it can be too sensitive, with the screen brightness fluctuating erratically with even the slightest change in lighting conditions. By turning it off, you eliminate this possibility, ensuring a steady and predictable screen brightness level.


  1. Open Settings
  2. Select Accessibility
  3. Tap Display & Text Size
  4. Switch Off Auto-Brightness

Frequently Asked Questions

Will turning off auto-brightness affect my battery life?

Turning off auto-brightness could affect battery life since you may not always choose the most efficient brightness level for your current environment.

Can I turn auto-brightness back on if I change my mind?

Yes, you can easily re-enable auto-brightness by following the same steps and toggling the switch back on.

Does disabling auto-brightness affect Night Shift or True Tone?

No, disabling auto-brightness does not affect Night Shift or True Tone settings; they will work independently of the auto-brightness setting.

Is there a quick way to adjust brightness after turning off auto-brightness?

Yes, simply swipe up from the bottom of the screen (or down from the top-right corner on iPhone X and later) to access the Control Center and adjust the brightness slider.

What is the best brightness level for my iPhone screen?

The best brightness level is subjective and depends on your environment and personal preference. It should be comfortable for your eyes and appropriate for the lighting conditions.


So, there you have it! With iOS 17, taking control of your iPhone’s screen brightness is a breeze. Whether you’re an accessibility user, a power user, or just someone who likes things a certain way, turning off auto-brightness puts you in the driver’s seat. Remember that with great power comes great responsibility; you’ll now need to manually adjust your screen brightness to suit your environment and conserve battery life.

But that’s a small price to pay for having your iPhone’s screen look just the way you want it, all the time. So go ahead, disable that auto-brightness and bask in the glow of your iPhone’s screen—exactly as bright as you want it to be.

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