If you want to make the text on your iPhone display larger, you can do it in four ways. First, adjust the text size in the home screen and app in "Settings > Display and Brightness > Text Size", which will not affect the icons and will take effect immediately; second, enlarge the text of the overall interface through "Assisted Functions > Display and Text Size > Larger Text", and enable the "Buttons and Icons" to expand most of the UI; third, click the "AA" button in Safari browser to select "Enlarge text" or turn off "Autofill Width" to improve the web reading experience; fourth, use third-party tools such as Biggin plug-in or apps that support custom fonts to adjust the font thickness, which is suitable for advanced users. You can choose local or global adjustment methods according to actual needs.

It is not difficult to make the text on the iPhone display larger. The Apple system provides many options to adjust the font size, and friends with daily reading or vision needs can find a suitable setting method.

Adjust the text size in "Display and Brightness"

In iPhone Settings > Display & Brightness > Text Size , you can adjust the text size in the home screen and app separately (for iOS 17 and above). This option will not change the size of the icon, but will only affect the text content, such as the contact name, menus in the App, etc.

• Drag the slider to preview changes in real time
• No need to restart after setting, the effect will take effect immediately

If you just think the words in the App are a bit small and don’t want the entire interface to grow bigger, this is the most direct way.

Use "Assistive Function" to enlarge the overall text

If you want not only text, but the overall interface content to be larger, you can use Settings > Accessibility > Display and Text Size > Larger Text .

Here are two key points:

• After turning on "Big Text", you can drag the slider to further increase the text.
• Enable the "Buttons and Icons" option to make some UI elements enlarge as well (not all apps support it)

This setting is more suitable for middle-aged and elderly users or people who need a clearer visual experience.

Temporarily enlarge text while browsing web pages in Safari

When browsing web pages, sometimes even if the system font is enlarged, some web pages still seem to be very difficult. At this time, you can use Safari's built-in functions:

• Click the "AA" button on the right side of the address bar
• Select "Enlarge text" or turn off "Autofill width" to adjust the reading experience

In addition, you can also enable the "Reading" function to let the mobile phone read out the text and relieve the pressure of reading.

Customize font size and thickness (requires third-party tools)

Although the native system can change the size, the font thickness cannot be changed. If you have high requirements for reading experience, you can try jailbreak plugins like Biggin (unofficial), or find reading apps that support custom fonts (such as Kindle, Notability).

This type of method is more suitable for advanced users, and ordinary users recommend giving priority to using the functions that come with the system.

Basically these are the methods. It is not complicated to increase the text, but many people don’t know that iPhone has so many levels of settings. You can choose local amplification or global adjustment according to your usage scenario.

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