Modern smartphones such as Redmi 9have high-resolution displays that make images clear, but standard text sizes may be too small for some users. This is especially true for people with low vision or those who are accustomed to large inscriptions. Fortunately, the operating system Android in the shell MIUI provides flexible tools for personalizing the interface without the need to install third-party apps.
In this article we will analyze in detail all the available ways to change the font size, from basic system settings to advanced functions. special features. You will learn how to adjust not only the text, but also the scale of the entire image on the screen, so that reading news, chatting in instant messengers and viewing menus become as comfortable as possible for your eyes.
The process of changing settings does not require special technical knowledge and takes only a few minutes. However, it is important to understand the difference between changing the font size itself and overall display scaling, as these options affect the perception of information in different ways. Let's move on to the practical guide.
Basic adjustment of text size through the menu. Display
The easiest and most reliable way to change the size of letters is to use the built-in display settings menu. This method affects the display of text in most system apps, such as Contacts, Messages, and Settings. To begin, unlock your Redmi 9 and find the application icon Settings on the main screen or in the application menu.
In the list of parameters that opens, you need to scroll down to the section responsible for the appearance of the interface. In different firmware versions MIUI this item may be called slightly differently, but the logic remains the same. You need to find the section Display or Screen, which is usually indicated by an icon in the form of a sun or a monitor.
Inside this section you will see an item Text size. Clicking on it will take you to a menu with a slider. Moving the slider to the right will increase the font size in real time, allowing you to immediately see the result. The system will offer you several preset sizes, from the smallest to the largest.
Please note that excessively enlarging the font may result in some words not fitting on one line and becoming wrapped, which sometimes disrupts the layout in third-party applications. Therefore, it is recommended to select a value at which the text is easy to read, but the interface remains functional. After selecting the appropriate size, simply click the “Done” button or go back, the settings will be saved automatically.
If you changed the font size, but in some applications it remains small, try restarting these applications completely through the multitasking menu.
Changing the size of an image element (Scaling)
In addition to changing the size of the letters themselves, Android there is a function for resizing an image element. This setting affects the scaling of the entire interface: icons, buttons, input fields and text blocks at the same time. If simply enlarging the font is not enough for you, this option will be a great addition.
To access this function, go to the menu again Settings and select section Display. At the bottom of the screen you will find an item Image element size (sometimes called “Scale” or “Screen Size”). There is also a slider that adjusts the overall scale.
When the slider value decreases (shift to the left), more information is placed on the screen, the elements become smaller. As the value increases (shift right), all interface elements become larger, taking up more space. This is especially useful for users who have difficulty placing their finger on small buttons on a touchscreen Redmi 9.
It is important to understand that the combination of maximum font size and maximum image zoom can make some applications inconvenient to use, as very little content will be displayed on the screen. Experiment with these two settings separately to find the perfect balance between readability and screen capacity.
- 📱 Standard mode is suitable for most users with normal vision.
- 🔍 Zooming in helps you better see small interface details and icons.
- ⚖️ Balance between size of text and elements, ensuring ergonomic use.
Using magnifying glass mode and special features
For users with severe visual impairments, standard display settings may not be enough. In this case, the functions of the section Accessibility in the system Androidcome to the rescue. These tools are designed to make a smartphone accessible to every person, regardless of their physical features.
One of the most powerful features is Magnifier. It allows you to temporarily enlarge any part of the screen, as if you were looking at small text through a magnifying glass. To activate this function, go to Settings, select the section Advanced settings, and then find the item Special capabilities.
In the list of available functions, find the item Magnifier and activate the switch. Once enabled, you can triple-tap the screen to activate zoom. In the window that appears, you can move the magnified area with your finger and adjust the degree of zoom using the slider. This is an ideal tool for reading small text in the browser or on product labels through the camera.
⚠️ Attention: Magnifying glass mode works on top of other applications. If you accidentally activate it and cannot remove it, try quickly tapping three times on the screen or use the accessibility control button in the notification shade.
Also in this section there is a function Zoomthat works differently than the magnifying glass. It zooms the entire screen when triple-clicked, allowing you to scroll through the enlarged image. Unlike Magnifier, this change applies to the entire visible space, rather than to a single window.
Settings → Advanced settings → Accessibility → Vision → MagnifierHow to adjust the speech speed for reading text?
In the same accessibility section you can find the TalkBack or Voice Highlight function. These services read text aloud, which is critical for visually impaired users. Speech speed and pitch can be adjusted in the submenu of the corresponding service.
Setting the font in specific applications
Not all applications are subject to system font settings. Developers of popular instant messengers and social networks often implement their own text size controls within their apps. This is done so that the user can flexibly customize the appearance of each specific service independently of the others.
For example, in the popular messenger Telegram the settings are located in the menu of the application itself. Go to Settings inside Telegram, select General, and then Font size. Here you will see a convenient slider and even the ability to view a sample text with different letter sizes before saving the changes.
In the browser Google Chromewhich is often used on Redmi 9, scaling works a little differently. You can change the font size for all web pages at once. To do this, open the browser menu (three dots in the corner), go to Settings, select Accessibility and adjust the slider Page zoom. This will increase not only the text, but also all the images on the sites.
Application WhatsApp also has its own display settings section. Go to Settings → Chat → Font size. You will be given three options: Small, Medium and Large. Selecting one of these items will immediately apply the changes to all chats in the application.
| Application | Path to settings | Adjustment type |
|---|---|---|
| Telegram | Settings → General → Font size | Smooth slider |
| Settings → Chats → Font size | Presets (Small/Medium/Large) | |
| Google Chrome | Settings → Special. capabilities → Scale | Percentage value |
| YouTube | Settings → General → Text size | Presets |
System font settings do not always override internal application settings. Check the settings inside each frequently used app separately.
Changing the font style and theme
The readability of the text depends not only on its size, but also on the style of writing. Some fonts are inherently clearer and more legible than others. On smartphones Xiaomi i Redmi it is possible to change the system font through the app Themes.
Open the application Themesthat is preinstalled on your device. In the bottom navigation bar, select tab Fonts. Here is a catalog of different styles, both free and paid. You can see how the text with the new font will look right in the store interface.
For users seeking maximum readability, it is recommended to choose sans-serif fonts (sans serifs), such as Roboto (standard) or its analogues. They look more modern and are easier on the eye on digital screens. Avoid decorative fonts with flourishes if your goal is ease of reading large amounts of information.
After downloading the font you like, click the button Apply. The system will warn you that the phone will be rebooted or the interface will be updated. After applying the new style, the font will change in all supported applications on the system. If you don't like the new font, you can always return to the standard one in the same menu.
⚠️ Attention: Third-party fonts may not display correctly in some banking applications or apps with their own text rendering system. In such cases, characters may turn into squares or be displayed in a standard font.
☑️ Check readability after changing the font
Solving problems with display and scaling
Sometimes users are faced with a situation where, after changing the settings, the interface does not work correctly: the buttons overlap each other friend, the text is cut off or disappears. This can happen when you set extreme scaling values or when system settings conflict with a specific update MIUI.
If you notice such artifacts, the first thing to do is try returning your display settings to default values. Go to Settings → Display and reset the text and image element size sliders to the middle position. Often this instantly solves the layout problem.
In rare cases, the problem may lie in a specific application error. Try clearing the cache of the problematic app. To do this, go to Settings → Applications → All applications, find the desired app, click on it and select Clear → Cache. This action is safe and will not delete your personal data.
Also worth mention the function Simple modethat radically changes the interface Redmi 9. When enabled, the font becomes very large, icons are enlarged, and unnecessary functions are hidden. This mode is ideal for older people. You can enable it via Settings → Advanced settings → Simple mode.
- 🔄 Resetting the display settings eliminates problems with overlapping elements interface.
- 🗑️ Clearing the cache helps correct display errors in individual applications.
- 👴 Simple mode creates the largest and clearest interface for all tasks.
⚠️ Attention: The interface and location of menu items may vary slightly depending on the MIUI firmware version (for example, MIUI 12, 13 or 14). If you do not find the specified item, use the search in the settings.
Use the built-in search in the settings menu. Just enter the word “font” or “text” in the top line of the settings screen, and the system itself will show the desired section.
Frequently asked questions (FAQ)
Why, after increasing the font in the settings, does it not change in WhatsApp?
The WhatsApp application has its own independent display settings. You need to go inside WhatsApp itself, open Settings → Chats → Font size and select the desired option there. System settings do not affect it.
Is it possible to make the font even larger than the standard slider allows?
Yes, for this you can use the "Zoom" function in the Accessibility section (triple tap on the screen) or enable Simple mode, which automatically sets the largest interface parameters.
It does. Does changing the font affect the performance of the Redmi 9 smartphone?
No, changing the font size or style does not have any effect on the processor performance or the speed of the device. This is a purely visual interface adjustment.
How to return all font settings to factory settings?
Go to Settings → Display → Text size and move the slider to the central position (usually marked with a dot or highlighted in color). Do the same for the “Image element size” item.
Is it possible to install your own font downloaded from the Internet?
Directly installing a font file from the Internet is difficult without root access. However, you can find this font in the application's Themes directory. If it is not there, the easiest way is to choose a similar style from those available in the official Xiaomi store.