How to change font size on Xiaomi Redmi 9

Modern smartphones like the Xiaomi Redmi 9 have large and bright displays, which is great for multimedia, but standard text settings aren't always convenient for all users. Many owners face the need to increase the size of letters to improve readability or, conversely, reduce them to accommodate more information on the screen. The built-in MIUI shell provides flexible tools for personalizing the visual interface, going far beyond simple presets.

In this article, we will take a look at all the ways you can change text, including hidden menu features and special features for people with visual impairments. You will learn not only to change the size, but also to adjust the saturation and style of display of symbols, making use of the gadget as comfortable as possible for your eyes. Proper screen calibration is the first step to reduce fatigue during long-term work with a smartphone.

It's worth noting that the settings interface may vary slightly depending on the firmware version you're using, but the basics remain the same across the Redmi line, and we'll look at both the standard methods that are available to everyone and the advanced techniques that allow you to get the perfect picture. Get ready to turn your phone into a personalized tool with optimal display.

Basic font setting through the design menu

The easiest and safest way to change the look of the text on Redmi 9 is to use the regular “Design” menu, which allows you to quickly switch between preset sizes and choose the different font styles available in the theme store. To get started, you need to unlock the device and find an application on the desktop called “Themes” or “Decoration”, which is standard for the MIUI shell.

When you start the app, look at the bottom navigation bar or user profile, where you usually hide additional settings. You need to go to the section responsible for personalizing the system, often marked by a human or gear icon, and this is where the Font item is located, which gives access to the catalog of available styles and a size adjustment slider.

When choosing a new style, remember that some fonts may be paid or require an Internet connection to download. Free options are marked with the appropriate icon, and their application takes only a few seconds. Once you choose the style, the system will suggest applying changes immediately or restart the device to correctly display all the interface elements.

⚠️ Note: Installing fonts from unverified third-party sources can cause characters to display incorrectly in banking apps or system menus, so use only the official theme store.

It's important to understand that changing the style of the font affects the entire system globally, which means that you'll see a new kind of text in messages, contacts, browsers and most installed applications. If the style you choose is not readable, you can always go back to the standard Roboto or MI Sans font in the same settings menu.

Accurate adjustment of text size in screen settings

For those who standard presets (small, medium, large) are not enough, in the Android system and shell MIUI It's a fine-tuning feature that allows you to set the font size to pixel-precision, which is especially true for users with specific visual requirements. → Screen. → Size of text.

In the window that opens, you'll see a slider that moves around in real time and changes the size of the letters in the demo text, which gives you the perfect balance, where the text doesn't cut your eyes with its size or make you squint while looking at the small details. Experiment with the position of the slider until you reach maximum comfort.

The feature, called “UI Element Size” or “Scale,” is often located next to the font settings. Unlike changing the text itself, it increases or decreases all the elements on the screen: buttons, application icons, indentations and fields. The combination of fine-tuning the font and interface scale allows you to create a unique ergonomics of the workspace.

When you increase the text size to maximum values, some applications may not display correctly, cropping some words or shifting control buttons. In such cases, it is recommended to slightly reduce the value or use the screen size adaptation feature if it is available in the MIUI version of your Redmi 9.

Use of special opportunities to improve readability

Android’s built-in accessibility mechanisms offer powerful tools for people with low vision that can be useful to anyone. The Special Options section contains settings to make text not just large, but also as contrasting and visible as possible. You can activate these features through the Settings menu → Additional settings → Special features.

One of the key options here is "Enlarged Text," which ignores the limitations of the standard slider and allows you to make the typeface really huge, which is critical for older people or users with severe visual impairments, for whom standard system settings are not enough.

• 🔍 Loop: built-in magnifying glass allows you to zoom in any part of the screen with a double tapping or through a floating button.

Also worth mentioning is the High-Contrast Text feature, which adds a stroke to the letters, making them clear even in motley backgrounds or in bright sunlight. On the Xiaomi Redmi 9, this option can be called “Improving Visibility” and makes it much easier to read in poor light conditions.

💡

Use Reading mode in your screen settings to reduce eye strain: it adds a warm yellow filter and optimizes text contrast for reading books.

Keep in mind that enabling some accessibility features can slightly increase battery consumption as the system has to process more graphics in real time. However, on a modern Redmi 9 processor, this effect is almost imperceptible in everyday use, and the comfort of vision is worth it.

Fat font and other visual enhancements

The MIUI shell offers users the ability to not only resize but also make the text bold (Bold Text), a feature that is especially useful for people who often use a smartphone in bright sun or have problems with focusing their vision.

You can activate this feature in the same screen settings section where the size is adjusted, or through a search by settings, typing in "Fat." Once you turn on, the text in all menus, messages and applications will become denser and richer, and this simple action can dramatically change the perception of information on the display.

In addition, the use of a dark theme in combination with large bold creates ideal conditions for night use of the smartphone. In Redmi 9, the dark theme does not just invert colors, but uses shades of gray, which reduces the contrast between neighboring elements and prevents the effect of “lubricating” the text.

⚠️ Note: When you include bold in some applications, text may “hit” other interface elements due to incorrect layout by application developers.

Setup DPI through the Engineering Menu (For Advanced)

For users who want to have full control of the display of information, there is the option of changing the density of dots per inch (DPI) through the developer menu. This method allows you to resize all elements of the system globally, including those that do not respond to the usual typeface setting. Be careful, as incorrect values can make the interface unreadable.

To access these settings, you must first activate the developer mode. To do this, go to Settings → About the phone and quickly click 7 times on the MIUI version. After you receive a message that you have become a developer, a new section will appear in the settings menu “Additional” or “Extended settings” → “For developers”.

In the technical options list that opens, find the "Minimum Width" item. Remember or write down the original value (usually around 360-392 dpi for Redmi 9) so you can return to it in case of an error. By changing this number, you change the physical size of the objects displayed: reducing the number of DPI makes everything larger, increasing it smaller.

Recommended range for Redmi 9: 320 - 450 dpi

Changing the DPI is a powerful tool, but it requires care. Too low can cause buttons to become too big to fit on the screen, and too high can make text microscopic. Use this method only if you don't like the standard font settings.

Solving and resetting display settings

Sometimes, after updating the system or installing a new font, you may have problems with displaying text: it may become unreadable, parts of characters disappear, or the layout in important applications should not be panicked, since most problems are solved by simply resetting the display settings to factory values.

If you can't get into the settings menu because of a flawed interface display, try using Google's voice assistant or Safe Mode. Safe Mode only loads system fonts, which allows you to remove the problem design. To enter Safe Mode, press the off button, and then hold your finger on the "off" icon on the screen for a long time.

It’s also worth checking for system updates. Xiaomi engineers regularly release patches that fix font rendering bugs in the MIUI shell. Go to Settings → About Phone → System Update and check for a new version of the software.

⚠️ Warning: Before making changes to system settings through the developer menu, always back up important data, as experimenting with system settings carries a minimal but present risk of unstable operation.

In conclusion, setting the font correctly on Xiaomi Redmi 9 is not just a matter of aesthetics, but also of your eye health. Experiment with the tools available, combine size, greasiness and theme to find the perfect combination. Your smartphone should be a handy tool tailored to your individual needs, not a source of constant stress.

💡

Optimal font setting reduces eye fatigue by 30% and increases the speed of reading information from the smartphone screen.