How to change the text size and font on a Xiaomi phone (HyperOS 3)

Device

Android

Shown on

Xiaomi Redmi Note 15 Pro 5G (25080RABDG), HyperOS 3.0.308.0, Android 16

App

Settings

Path

Settings › Display & brightness › Font settings: size slider

Real screenshots

5 of 5 steps

Checked

October 2026

Sources

1 official, linked below

Step by step

1. 

   Open Font settings

   Open Settings, tap Display & brightness and scroll to the bottom. Under Font, tap Font settings.

   Done

2. 

   Watch the example text

   The top of the page shows example text in the current font and size.

   Done

3. 

   Drag the size slider

   The first slider, from a small A to a big A, sets the text size. Ours was at 100%. Drag it right for bigger text.

   Done

4. 

   Make letters bolder

   The second slider, from a thin A to a bold A, sets how thick the letters are. Drag it right for bolder text.

   Done

5. 

   Pick a font

   At the top of the card, Default was selected. MiSans is the other built-in choice; the button with three dots offers more.

   Done

If you do not see this option

• No Text size row? Not on our phone. Look under Font in Display & brightness: Font and Font settings.

  

• How big can it go? Xiaomi's HyperOS 3 guide says the slider runs from 90% to 200%. Source: Generic User Guide for HyperOS 3.0
• Want a different font? Xiaomi's guide says the Font row opens a Fonts page where you download and apply a font. We did not open it. Source: Generic User Guide for HyperOS 3.0

If this does not work

• Expecting a Themes prompt? Font settings opened straight away on ours, with no Themes consent screen. We did not open the Font row.
• Changed it and don't like it? Go back to Font settings and drag the size slider to 100% again, and pick Default.

About this guide

There is no Text size row on HyperOS 3. Size, weight and font are all on one page called Font settings.

The screenshots are from our Redmi Note 15 Pro 5G with Xiaomi HyperOS 3.0.308.0 and Android 16, in Light mode. We only opened these screens and changed nothing.

Good to know

Change the phone's language: how to change the language on a Xiaomi phone.

Quieter typing: how to turn off keyboard and touch sounds.

In short: Settings, Display & brightness, Font settings: size slider, weight slider, font.