How to Change iPhone Display Settings

What You’ll Need

Your iPhone, unlocked.
A few minutes to try the changes and check how they look.

Step-by-Step

Open Display & Brightness. Open the Settings app and tap Display & Brightness. Menu names and paths can differ slightly by iOS version. If you cannot find a setting, use the search field at the top of Settings and enter its name.
Adjust screen brightness. Drag the Brightness slider to the level you want. You can also open Control Center and move its brightness control. On iPhones with Face ID, swipe down from the top-right corner; on models with a Home button, swipe up from the bottom edge. Auto-Brightness is a separate accessibility setting, so the screen may adjust itself even after you move the slider.
Choose Light or Dark appearance. Under Appearance, select Light or Dark. If you want the iPhone to switch automatically, turn on Automatic and set a schedule or use the available sunset-to-sunrise option. This changes the appearance of supported system screens and apps; it does not necessarily change every app.
Set text size and readability. In Settings, open Display & Brightness and tap Text Size if that option is shown. Move the slider to make text smaller or larger. For larger sizes or more accessibility controls, go to Settings > Accessibility > Display & Text Size; menu names may differ slightly by version. Some apps do not support every text-size change.
Change display zoom if available. In Display & Brightness, look for Display Zoom or a similarly named control. Review the preview, select the layout you prefer, then follow the on-screen prompt. The feature is not available on every iPhone. A zoomed layout makes on-screen items appear larger and may show less content at once.
Review other screen options. Look for controls such as True Tone, Night Shift, or Auto-Lock if you want to adjust color appearance or when the screen turns off. Availability varies by model and version. Change one option at a time, return to your Home Screen, and check the result before changing anything else.

Common Mistakes

Confusing brightness with text size. Brightness changes how brightly the screen emits light; it does not enlarge letters. Use Text Size or an accessibility display option to change readability.
Expecting Dark Mode to affect every app. Dark Mode applies to iOS and apps that support it. An app may have its own appearance setting or may remain light.
Assuming a setting is missing. Features depend on the iPhone model and iOS version. Search Settings before concluding that a control is unavailable, and check that the phone is running a compatible version.
Changing several options at once. If the display looks wrong afterward, it can be hard to identify which change caused it. Adjust one control, inspect the screen, and then continue.
Overlooking automatic adjustments. Auto-Brightness, True Tone, Night Shift schedules, and automatic appearance can alter the screen after your manual change. Check these controls if the display changes by itself.

Tips

Use Control Center for quick brightness changes, but open Settings when you need to find automatic controls or accessibility options.
If you want larger text across more of the interface, try the accessibility text-size controls; individual apps may still use their own text settings.
Choose a brightness level that is comfortable in your surroundings. If the screen seems dim despite a high slider setting, check whether the iPhone is warm or whether an accessibility display filter is enabled.
Take a moment to check the Lock Screen, Home Screen, Settings, and a frequently used app. Not all display changes affect every screen in the same way.
To undo a change, return to the same setting and choose its previous value or turn off the option. Most display adjustments do not require restarting the iPhone.

Troubleshooting

The screen is still too dim or bright: Check the brightness slider in Settings and Control Center. If brightness changes automatically, look for Auto-Brightness under Settings > Accessibility > Display & Text Size; the route may differ slightly by version. Also check whether Night Shift or a color filter is affecting how the display looks.

The setting is not listed: Search for it from the top of Settings. If it still does not appear, it may not be supported by your iPhone or current iOS version. Install an available iOS update only if you are ready to do so, and check Apple’s guidance for your device.

Text or icons look unexpectedly large: Return to Display & Brightness and review Display Zoom, then check Accessibility > Display & Text Size for larger text or display filters. Restore the options you changed one at a time.

The display changes back later: Check for Automatic appearance, a Night Shift schedule, or Auto-Brightness. These features can change appearance, color, or brightness according to their settings and conditions.

The screen is unresponsive: Clean and dry the display, remove any case or screen protector that may press on its edges, and try again. If touch still does not work or the display shows persistent lines, flickering, or damage, contact Apple Support or an Apple-authorized service provider rather than attempting to open the phone.

Frequently Asked Questions

How do I make my iPhone screen brighter?

Open Settings > Display & Brightness and move the Brightness slider to the right, or adjust brightness in Control Center. Auto-Brightness may alter the level afterward.

How do I make the text bigger on my iPhone?

Open Display & Brightness > Text Size and move the slider. For larger accessibility sizes, look under Settings > Accessibility > Display & Text Size. Paths can vary slightly by version.

Can I change the iPhone screen colors?

Yes. Display & Brightness may offer Light or Dark appearance, True Tone, and Night Shift, depending on your model. Accessibility display filters are available under Display & Text Size.

Why does my iPhone screen keep dimming?

Auto-Brightness can adjust brightness to surrounding light. A scheduled display feature may also change the screen’s appearance. Check these settings and make sure the phone is not warm.

Will changing display settings delete anything?

No. Changing brightness, appearance, text size, or display zoom does not erase your photos, apps, or other personal data.

Sources: Apple Support. Menus and buttons can differ slightly by version. Spotted something out of date? Tell us.