iOS 17: How to Stop Your iPhone Screen Brightness from Changing

To stop your iPhone screen from automatically changing brightness, you simply need to go to Settings, then Accessibility, followed by Display & Text Size, and finally switch off the Auto-Brightness feature. This will prevent your iPhone from adjusting the screen brightness based on ambient light conditions.

After completing this action, your iPhone screen brightness will remain consistent regardless of changes in the surrounding light environment. This means that whether you’re soaking up the sun at the beach or lounging in a dimly-lit room, your screen brightness will stay exactly as you set it.

You can also watch this video about how to stop your iPhone screen brightness from changing for additional info.


Ever had that annoying experience where you’re trying to read something on your iPhone, and the screen brightness keeps changing on you? It can be a real pain. But don’t worry, you’re not alone, and there is a solution. Adjusting screen brightness can be necessary for a comfortable viewing experience, but when the iPhone does it automatically, it can be more of a nuisance than a feature. It’s especially relevant for those who work in varying light conditions or have specific visual preferences.

This article is for anyone who wants to take control of their iPhone’s screen brightness, ensuring it stays just the way you like it. Whether you’re a student, a professional, or just someone who enjoys browsing on your phone, keeping the brightness consistent can make for a much more pleasant experience.

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

Step by Step Tutorial: Disabling Auto-Brightness on iPhone

Before we dive into the steps, it’s important to understand what these actions will do. By following the tutorial, you will disable the Auto-Brightness feature on your iPhone. This means your screen will no longer automatically adjust based on the light around you. Ready? Let’s go.

Step 1: Open Settings

Open the Settings app on your iPhone.

The Settings app is where all the magic happens. It’s your go-to for customizing your iPhone to suit your needs. Once you find the app, which is gray with gears on it, tap it to start your journey to consistent screen brightness.

Step 2: Tap on Accessibility

Scroll down and tap on Accessibility in the settings menu.

Accessibility features are designed to make the iPhone easier to use for everyone. In this case, it’s where you’ll find the option to control your screen brightness.

Step 3: Tap on Display & Text Size

In the Accessibility menu, find and tap on Display & Text Size.

This section is full of options to make your display more readable. But the one we’re interested in is hiding at the bottom.

Step 4: Turn off Auto-Brightness

Scroll to the bottom of Display & Text Size and switch off Auto-Brightness.

And just like that, you’ve taken control of your screen brightness. The switch will go from green to gray, indicating that the feature is off.


Consistent BrightnessTurning off Auto-Brightness ensures that your screen remains at a consistent level of brightness, which is perfect for those who have a specific preference or need for their screen display.
Battery PreservationSome users may find that disabling Auto-Brightness can help conserve battery life, as the phone isn’t constantly adjusting the brightness levels.
Better ControlYou get better control over your iPhone’s screen brightness settings, allowing for a more personalized and comfortable user experience.


Less Convenient in Varying Light ConditionsWithout Auto-Brightness, you’ll have to manually adjust your screen brightness when moving between different lighting environments.
Possible Eye StrainKeeping the screen at a high brightness in low light conditions, or vice versa, can lead to eye strain or discomfort.
Increased Battery DrainIf you forget to lower your brightness in well-lit conditions, your battery may drain faster than if Auto-Brightness were enabled.

Video About Changing Brightness

Additional Information

Now, you might be wondering how often you’ll need to adjust your screen brightness after turning off Auto-Brightness. Well, it really depends on your individual usage and the environments you find yourself in. If you’re often in the same lighting conditions, you might not need to tweak it very often. But if you’re constantly moving from inside to outside, or from bright to dim areas, you might find yourself reaching for that brightness slider a bit more.

Remember, you can always access the brightness slider quickly by swiping down from the top-right corner of the screen to open the Control Center. Also, keep in mind that if you find the constant adjustments too bothersome, you can always go back and turn Auto-Brightness back on following the same steps. iOS 17 still provides you with the flexibility to choose what works best for you.


  1. Open Settings on your iPhone.
  2. Tap on Accessibility.
  3. Tap on Display & Text Size.
  4. Turn off Auto-Brightness.

Frequently Asked Questions

Will turning off Auto-Brightness affect my battery life?

Turning off Auto-Brightness may lead to increased battery consumption if the brightness is left high, but it could also preserve battery life if managed well.

Can I quickly adjust my screen brightness after turning off Auto-Brightness?

Yes, you can quickly adjust screen brightness through the Control Center by swiping down from the top-right corner of your screen.

What if I find manual adjustments too tedious after turning off Auto-Brightness?

You can easily turn Auto-Brightness back on by following the same steps and toggling the switch on.

Will my screen brightness stay the same if I restart my iPhone?

Yes, once you turn off Auto-Brightness, the setting should remain even after a restart.

Is there a way to have a middle ground, where the brightness adjusts but not as frequently?

Unfortunately, iOS does not currently offer a middle-ground option. It’s either automatic adjustments or manual control.


In conclusion, taking control of your iPhone’s screen brightness can be a simple yet impactful change. It’s all about personal preference and usage, and with iOS 17, you have the flexibility to choose how your phone behaves.

Whether you value a consistent screen brightness or are looking to potentially preserve battery life, turning off the Auto-Brightness feature might just be the tweak you need. Give it a try and see how it changes your iPhone experience.

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