How to Change The Font Size on an iPhone

Using the Display Settings

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Using Accessibility Settings

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Using Display Zoom

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Video

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Q&A

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Tips

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Warnings

This How.com.vn teaches you how to make text in Apple menus and supported apps larger or smaller from within the "Display & Brightness" menu.

Part 1

Part 1 of 3:

Using the Display Settings

You'll find this on one of your Home screens, or in the Utilities folder.
It's in the third group of options on this page.
3
Select Text Size. This option is in the fourth section of settings on this page.
- You can also make all of your iPhone's text bold to improve readability from this area of the menu.
4
Tap and drag the slider. Dragging it to the right will enlarge menu text, while dragging it left will shrink menu text. This change will apply to all Apple apps and any third-party apps that support Dynamic Type.
- This will not affect the size of your icon text.
It's in the top left corner of your screen. Doing so will save your text size change, so you'll see your new text size immediately applied to the menu text here.
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Part 2

Part 2 of 3:

Using Accessibility Settings

This is the grey app icon on a Home screen or in a folder named "Utilities."
"Accessibility" will be the seventh option in the General menu.
3
Click on "Display & Text Size". Display and text size has exactly what it says: text settings.
- You should see a slider and a switch that says "Larger Accessibility Sizes."
You'll find this at the top of the second group of options on this page.
Doing so will increase the maximum size to which you can enlarge menu text.
Dragging it right will increase text size, while dragging it left will decrease text size. Like the Text Size slider in the "Display & Brightness" menu, any changes you make here will only apply to iOS menus and apps that support the Accessibility sizes (e.g., Apple apps and supported third-party apps).
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Part 3

Part 3 of 3:

Using Display Zoom

1
Open your iPhone's Settings. Do this by tapping the grey cog icon on one of your iPhone's Home screens (or in a folder named "Utilities").
- This feature only works for iPhones 6 and up.^{[1]XResearch source}
This is in the third group of options on this page.
It's in the fifth group of settings here.
You'll find this near the top right side of your screen. Doing so will show a preview of your Home screen so you can see how the zoomed view will look.
This will save your settings. Your entire display will now be zoomed in slightly, thereby making everything a little bit bigger.
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Community Q&A

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Question
I want to change the format of a person's name on my iPhone, is that possible?
Community Answer
Go to phone settings. Select Personalize Settings and change the format setting for contacts.
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Question
I changed the fonts on my iPhone 5, but some stayed the old way. How do I do a universal change to the font size in the iPhone 5?
Community Answer
The app you're using must support Dynamic Type in order for the text size changes to work. Most Apple and major third-party apps support Dynamic Type, but many smaller apps do not.
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Question
How can I change the font size of recent and missed calls on the iPhone 5S?
Community Answer
The only way to change font is to change the font in Settings, but doing so will effect all texts and calls and most apps that were initially on your phone.
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Tips

It is not possible to change the size of icon labels outside of the Display Zoom feature on newer iPhones.
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You can't change an iPhone's font unless the iPhone is jailbroken.
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