How to Change Font Size on Xiaomi: The Complete Guide

Modern Xiaomi, Redmi and POCO smartphones feature high-quality pixel density displays that sometimes play a cruel joke with users. Standard system settings often offer text that seems too small to read comfortably, especially for people with low vision or in bright sunlight. The ability to properly customize display settings is the first step to personalizing the device to your physiological needs.

The MIUI interface and the new HyperOS offer advanced typography management capabilities that go far beyond simply switching between small and large. In this article, we’ll take a look at all the methods available, from basic settings to hidden engineering menu features, to help make screen reading as easy as possible.

Changing the size of the font not only improves readability, but also affects how much information is placed on a single screen. Competent setting allows you to find a balance between the amount of visible content and eye comfort, making using a smartphone truly ergomine.

Basic settings through the parameter menu

The easiest and safest way to resize text is to use the regular Android operating system tools adapted by Xiaomi engineers, which does not require superuser rights and is completely reversible at any time.

In the list of options, you should find a section that can be called Screen or Display, depending on the firmware version. Inside this menu is the text size item, which regulates the font scale in system applications, settings menus and supported third-party programs.

• 🔍 Open "Settings" and go to the "Screen" section".
• 📏 Find the text size slider and move it to the desired position.
• ✅ Click “OK” or “Apply” to save the changes.

It's worth noting that the slider has several fixed positions, designated by the letters S, M, L, XL. Moving the regulator to the right increases the size of the characters, making them more readable, but reducing the number of lines visible on the screen without scrolling. This is a fundamental setting that affects the entire system.

After settings are applied, the system may require some applications to restart to correctly display the new font size. In most cases, the changes take effect instantly, but in heavy interfaces like MIUI, there may be a short-term delay when switching between windows.

Use of screen scaling mode

Users often confuse font size with overall interface scaling, but these features are separated in Android. If text size changes are not enough, or if you need to zoom in not only letters, but also buttons, app icons, and spaces between elements, use the screen element size feature.

This option works differently than a simple font: it changes the logical resolution of the display (DPI), making the system think that the screen is physically smaller than it really is, and as a result, all the interface elements, including text, become significantly larger and take up more space.

💡

The combination of large font and increased screen zoom can cause some buttons in apps to stop fitting into the visible area.

To access this feature, you need to be in the same Screen menu where you set up the text. Below the font size slider is usually a second controller responsible for the overall size of the elements. Changing it requires more care, because zooming too much can make navigation uncomfortable.

• 🖥️ Scaling affects all graphic elements, not just text.
• 📐 Change of change DPI It can be used to shift the layout in some applications.
• ⚖️ Balancing the size and amount of information on the screen is critical.

It's important to understand the difference between these two settings, and if you just want to see the letters better in your messages or your browser, the first method is enough, and if the goal is to make the interface as simple as possible for an elderly person or someone with poor vision, then combining both methods will give you the best result.

⚠️ Note: As the screen zooms up as much as possible, some system elements may crop or overlap, making control impossible. If this happens, quickly press the power button three times (if emergency call feature is enabled) or use voice control to reset settings.

Font settings in the design theme

One of the strengths of MIUI is the design theme, which allows you to change not only the size, but also the style of the font. Themes store has thousands of fonts available, many of which have increased basic shape or sharper edges, which subjectively improves readability.

To install the new font, open the Themes app, go to the profile (human icon) and select the Fonts section. Here you can download both free and paid options. Once downloaded, the font applies to the entire system, replacing the standard Roboto or Mi Sans.

Some third-party fonts may not support all languages or have coding problems, which will result in squares instead of letters, in which case it is recommended to return to the standard system font through the same profile menu.

It’s worth mentioning that with the release of HyperOS, Xiaomi introduced a new system font, HyperOS Font, which is optimized for readability on any screen diagonal. It automatically adapts letter spacing, which can be a great alternative to manually adjusting the size.

Increased text in the browser and applications

System settings don’t always dictate how to behave for each particular application. Browsers, instant messengers, and social networks often have their own internal content display settings that prioritize global Android settings.

For example, in Chrome or MI Browser, you can set a minimum font size for web pages. This is especially true, since many sites have small layouts that are difficult to read even with the system zoom enabled. The setting is located in the browser menu: "Settings" → "Special features" → "Scaling text".

Messengers like Telegram or WhatsApp also have their own text size sliders. Telegram does this through Settings → Chats → Text Size, which makes it easier to communicate without increasing the rest of the phone’s interface.

Using internal app settings gives you more flexibility, so you can make the text in a book huge, and in a working email client you can keep it compact for easy viewing of large amounts of information, and this differentiation increases the overall productivity of your smartphone.

Advanced settings through the developer menu

For advanced users who don't have enough standard options, there's a developer menu, and you can find hidden parameters that affect the density of dots per inch (DPI) with high accuracy, down to one, and this allows you to achieve a font size that is not possible with standard sliders.

To activate the developer menu, you need to go to "About the phone" and quickly click 7-10 once on the line “Version” MIUI" (or "Version". OS"). After the message “You became a developer” appears in the settings menu, a new section “More” will appear" → "For developers".

Inside this section, you'll need to find "Minimum width" (or "Smallest width"). The default value is usually 360-400 dp. Reducing this number visually increases all the elements on the screen, including fonts. For example, changing the value to 320 dp will make the interface noticeably larger.

⚠️ Warning: Changing the Minimum Width option in the developer menu is a risky operation. Write down the original value before making changes so you can go back in case of interface problems.

This method is especially useful for older models with low-resolution screens, where standard magnification is not enough, but on modern flagships with high DPI, such manipulation can lead to font blurring, as they will scale incorrectly.

Full-screen applications mode and compatibility

When changing the font size, users often face layout problems in applications, text can pop on buttons, crop or overlap important controls, and MIUI has a forced scaling mechanism for such cases.

In the menu "Settings" → "Screen" → "Full-screen applications can be controlled by the behavior of specific programs. While this section is primarily designed to stretch old applications onto screens with cutouts, it also affects how the system renders the interface when the font parameters are changed.

If you notice that text has become unreadable or cropped in an application after enlarging the font, try changing the display mode for that application. Sometimes switching between default and full screen modes helps.

• 📱 Problems with layout often occur in older versions of applications.
• 🔄 Restarting an application often solves display problems after changing the font.
• ⚙️ Some launchers (desktop shells) may ignore system fonts.

Also, it is worth considering that the use of a dark theme in combination with a large font can create a “floating” text effect due to the peculiarities of rendering fonts on AMOLED-matrixes. In such cases, it is recommended to slightly reduce the brightness or change the font to a bolder one.

💡

Optimal font customization is a trade-off between readability and the amount of information on the screen. Don't try to make the text as big as possible if it makes pages constantly scrolling.

Frequently Asked Questions (FAQ)