How to change font size on an OPPO phone (ColorOS 16)

howtosimply.com/guides/how-to-change-font-size-on-an-oppo-phone/ · Checked October 2026 · CPH2689, EEA), ColorOS 16.0.5, Android 16 (build CPH2689_16.0.5.1001(EX01) · OPPO Reno13 5G

3 of 3 steps with real screenshots · 1 official source below

Device

Android

Shown on

OPPO Reno13 5G (CPH2689, EEA), ColorOS 16.0.5, Android 16 (build CPH2689_16.0.5.1001(EX01))

App

Settings

Path

Settings › Display & brightness

Real screenshots

3 of 3 steps

Checked

October 2026

Sources

1 official, linked below

Step by step

1. 

   Tap Font

   Open Settings, Display & brightness and scroll to Font.

   Done

2. 

   Drag Font size, then tap Apply

   The sample text at the top changes as you drag. Apply is at the bottom of the page.

   Done

3. 

   Change Display size for everything

   Back on Display & brightness, tap Display size and pick Large, Standard or Small.

   Done

If you do not see this option

• Not under Display & brightness? OPPO's help puts Fonts under Settings, Desktop, Lock Screen and Personalization on ColorOS 16. On our ColorOS 16.0.5 it was Display & brightness, Font, which is the path OPPO gives for ColorOS 13 to 15. Search Settings for font if neither matches. Source: How to Change the Font Style and Size on OPPO Phones
• Older ColorOS? OPPO gives Settings, Personalizations, Font & display size on ColorOS 11 and 12, and Display & brightness, Font size on ColorOS 5.2 to 7. Source: How to Change the Font Style and Size on OPPO Phones
• Want more font styles? OPPO says Theme Store version 6.4 and later has a Fonts category; some fonts must be bought, and the Theme Store isn't offered in every country. Source: How to Change the Font Style and Size on OPPO Phones

If this does not work

• Icons and layout changed too? That is Display size, not Font size. Our phone says it changes the size of icons and text, and the layout on some models. Set it back to Standard.
• Text still too small or too bold? Drag Font size further, or tap Reset next to Font weight on the same page; both sit under the font choices on ours.

About this guide

The screenshots are from our OPPO Reno13 5G, the European model CPH2689, with ColorOS 16.0.5 and Android 16 (build CPH2689_16.0.5.1001(EX01)), in Dark mode. Ours was on Default font size and Standard display size.

Good to know

Make bold text easier to read: Font weight sits just under Font size on the same page.

Turn on darker colours for night reading: Dark mode on an OPPO phone.

In short: Settings, Display & brightness, Font (text) or Display size (everything).