How to make the font size of vivo mobile phone information larger?

Can be adjusted according to the mobile phone system version:

Funtouch OS 9.1 or below: SMS interface fonts can be enlarged or reduced independently (does not affect the system font size)

SMS fonts When it becomes larger, open the information details interface, hold down the screen with two fingers and slide relative to each other (slowly bring the two fingers together) to reduce the font size.

OriginOS/Funtouch?OS?9.1 and later versions do not support this function.

The reasons are as follows:

1. The font size is the unified size of the system. You can adjust the system font size uniformly in Settings--Display and Brightness--Font Size.

2. You can double-click the information copy to enter the full-screen enlargement page and view the enlarged font. It is recommended to view large font content this way.

For more questions, you can go to vivo’s official website – My – Online Customer Service – Enter manually and consult online customer service for feedback.