How to get the maximum brightness on your iPhone.
By default, Apple has auto-brightness on your iPhone set to ON.
When you are indoors, you will never achieve the max brightness that your phone can achieve with this setting turned on.
Yes, even if you go to control center and slide the brightness all the way up, it will not be its brightest.
To unlock your maximum brightness and really see it shine, I need you to follow this process:
Go to a dimly lit area.
Make sure your phone has Dark Mode turned OFF.
Open your Control Center and maximize your brightness. Now you are setup to see eye-blinding brightness.
Go to Settings > Accessibility > Display and Text Size, and scroll all the way down and disable auto-brightness.
Watch the screen and notice how much brighter it gets!
Remember one thing: this is great for indoor brightness only.
If you do want the highest brightness outdoors, you need to keep the auto-brightness setting ON. That is the only way to get peak brightness on your iPhone when outdoors. Apple limits this so your screen doesn’t max out at 2000 nits of brightness all day long and either destroy your screen or your battery life.
Instead of having to go through settings each time to toggle this on and off, you can ask Siri to either, “Turn on auto brightness” or “Turn off auto brightness.”
If you want to change the setting in silence, add this shortcut to take you right to the auto brightness toggle with a single click:
Note: Tested on iOS 17 and iOS 18.2 Developer Beta