Mobile phone: iPhone 14Pro

System: iOS 16

1. First, we turn on the phone and click to enter the settings.

2. Then enter the setting list, and click to select display and brightness.

3. Then we find the bold text and click the button on the right to open it.

4. After opening the bold text, you can see that the font has become thicker, as shown in the figure.

I hope it helps you. If you have any questions, please leave a message. Thank you.