How to set the font size of mobile phone?

Setting allows you to set the thickness by inputting the display and brightness. I'll tell you how to set the font thickness. Take the mobile phone model: vivo y3 1s as an example.

The specific operation steps are as follows:

1. Open the settings on your phone, and then click Display and Brightness below.

2. Then click the font size and thickness.

3. After entering, click ○ to resize. Dragging to the right is thicker and dragging to the left is thinner.