Optimizing iPhone Display for Better Readability

- Difficulty
- Beginner
- Tested on
- iOS 18.4 - iPhone 15 Pro
- You will need
- iPhone with iOS 14 or later
Step by step
Increase system font size
Open the Settings app and navigate to Display & Brightness. Tap Text Size and drag the slider to the right to increase the font scale for supported apps.
Note: For even larger text, go to Settings > Accessibility > Display & Text Size > Larger Text.Enable Bold Text
Go to Settings > Display & Brightness. Toggle the Bold Text switch to On. Your iPhone will restart the springboard to apply this change to all system fonts.
Increase display contrast
Navigate to Settings > Accessibility > Display & Text Size. Toggle Increase Contrast to On to improve the visual separation between text and backgrounds.
Note: This setting also reduces transparency in backgrounds, making text overlays easier to read.Enable Differentiate Without Color
In the Display & Text Size menu, toggle Differentiate Without Color to On. This replaces interface elements that rely solely on color with shapes and text labels.
Activate Per-App Settings
Go to Settings > Accessibility > Per-App Settings. Tap Add App, select your desired application, tap the entry, and choose Larger Text or Bold Text to customize specific app readability without affecting the entire system.
Note: This is ideal if only your browser or email client requires higher legibility.