Many smartphone users Xiaomi, Redmi and Poco face inconvenience when typing: standard keys seem too small, and hitting the right characters turns into a lottery. This is especially true for people with large fingers or poor vision, when standard settings Android systems do not provide sufficient comfort. The problem is solved not only by changing the size of the keyboard itself, but also by comprehensively adjusting the display of interface elements.
The shell MIUI and the new HyperOS provide flexible tools for customization, which are often hidden in non-obvious menus. You don't have to be an experienced programmer to make changes. It is enough to consistently go through several steps in the settings menu to make entering text on your smartphone truly convenient and ergonomic.
There are several levels of scaling: from a simple change of theme to a deep system overhaul through the engineering menu. The safest and most effective method for most users is a combination of changing the system font size and adjusting the keyboard height in the Gboard application. Below we will analyze in detail each method, its pros, cons and technical nuances of implementation on devices of different generations.
Basic setup of the standard Gboard keyboard
You should start with the most obvious and safe method - using the built-in tools of the application Gboardwhich is installed by default on most smartphones Xiaomi. This application has its own rendering engine, which allows you to change the height of the row of keys without affecting the rest of the system. To access the settings, you need to go to any text input field so that the keyboard appears, and click on the gear icon.
In the menu that opens, select the “Settings” item, and then find the “Keyboard Settings” section. What you're interested in here is the "Keyboard Height" slider. As you move it, you can choose from five options, from Very Small to Very Large. Recommended Select Large or Very Large if your goal is to maximize the clickable area.
⚠️ Attention: If you select the maximum height setting, the keyboard may cover more than half the screen, making it difficult to see text in messengers with a dense layout.
In addition to height, in the same menu you can activate split keyboard for one-handed input. While this doesn't directly increase the size of the buttons, moving the keyboard to one edge of the screen makes it easier to reach the opposite side with your thumb, which subjectively improves the perceived size of the keys.
Use the Hover feature in Gboard Settings to undock the keyboard from the edge of the screen and move it to any convenient area if the standard position obstructs your view.
Change system font and display scale
If the settings of the keyboard itself are not enough, you need to influence system scale. On Android, font size directly affects the size of characters on the virtual keyboard. To change these settings to Xiaomi, go to the "Settings" menu, select the "Display" section and find the "Text and Image Size" item.
Here you will see a slider that adjusts the pixel density (DPI) and font size at the same time. By moving it to the right, you will enlarge all text elements of the interface, including button labels and the characters themselves on the keyboard. However, it is worth remembering that this change will affect not only text input, but also the display of sites, settings menus and application interfaces.
For finer adjustments, you can use the separate “Interface element size” slider (if it is available in your version MIUI). It allows you to increase buttons and padding without making the font giant. This often helps to make the keyboard visually larger and more readable, while maintaining the proportions of other elements.
| Parameter | Impact on the keyboard | Impact on the system | Recommended value |
|---|---|---|---|
| Height keyboard | Direct button enlargement | No | Large / Very large |
| Font size | Character enlargement | Everywhere (texts, menu) | Medium / Large |
| Interface scale | Increasing indents | Buttons, icons | Feels like |
| Theme design | Visual size | Keyboard only | Large font |
☑️ Setting up comfortable input
Using themes with large font
The shell MIUI has a powerful built-in theme store that allows you to radically change the appearance of the keyboard without root access. Many users do not know that there are specialized themes where the default keys are made huge and the font is contrasting. To search for such solutions, open the “Themes” application on your desktop.
In the store search bar, enter the queries “Large keyboard”, “Big font” or “Large keyboard”. In the search results, pay attention to the screenshots in the theme preview: you are interested in those where the keys occupy almost the entire height of the bottom panel. Using such a theme will only affect the keyboard and, possibly, system icons, without breaking the layout of other applications.
After installing the theme, be sure to restart your smartphone. This is necessary so system resources that the new style is completely updated and applied to all input fields, including the lock screen and search bar. If you don't like the theme, you can easily delete it through the "Profile" menu in the themes application.
Where to look for rare themes?
The Xiaomi theme store sometimes hides the best work from independent designers. Try searching by tags for specific designers who specialize in accessibility, or use a global keyword search in English, since the database of topics is international.
Advanced settings through developer mode
For advanced users for whom the standard sliders are not enough, there is access to hidden scaling options. Developer mode allows you to change the minimum screen width in dp (density-independent pixels), which actually changes Boolean resolution matrices. This is a powerful tool, but it requires caution.
To activate the mode, go to Settings → About Phone and quickly tap on version seven times MIUI or HyperOS. After the message “You have become a developer” appears, return to the main settings menu, select “Advanced” → “For Developers”. Find the Smallest width item.
Write down the original value (usually 360, 392 or 411 dp) so you can go back. Decreasing this number will make the system think the screen is smaller and it will automatically make everything larger, including the keyboard. For example, changing from 392 to 320 will make the interface noticeably larger.
⚠️ Attention: Do not set the value too low (less than 300 dp), otherwise some interface elements may fall off the screen or become unreadable, and the system may behave unstable.
This method is the most radical and effective for people with serious vision problems. It ensures that absolutely all text fields and buttons on the device will become larger, regardless of the desire of a particular application to support large fonts.
Third-party applications for customization
If the built-in tools Xiaomi do not meet your requirements, third-party keyboards from the Google Play Market come to the rescue. Applications like Big Keyboard or Textra (with plugins) allow you to flexibly adjust the height, width and even rounding of the keys. They often have a clearer settings interface than standard Android.
When installing a third-party keyboard, the system will ask you to allow it access to the input data. This is standard Android security procedure, as the keyboard can technically "see" everything you type, including passwords. Trust Only apps with a high reputation and a lot of reviews.
Some apps offer a "One-handed mode" feature with the ability to zoom active zone. This means that the keyboard not only becomes large, it shrinks and moves into a corner, but the buttons themselves inside this area remain large and easy to press.
Solving problems with responsiveness and stickiness
After increasing the size of the keyboard, users sometimes notice that input has become less accurate: the phone types the wrong letters or with a delay. This is due to the fact that when the scale increases, the coordinates of touch events change. In the settings of the keyboard Gboard or third-party analogues, it is worth checking the “Vibration when pressed” and “Sound” parameters, turning them off to reduce the load on the input processing process.
Also, the problem may lie in the protective glass. If you have enlarged the keyboard programmatically, but the physical glass has thick edges or a poor oleophobic coating, your finger may slip off the enlarged button surface. Wipe the screen and check if the case is preventing you from touching the edges of the enlarged keyboard.
In rare cases, after updating MIUI scaling settings may be reset. If you used developer mode, check the minimum width value again. If the problem persists, try clearing the cache of the Settings and Keyboard applications through the Applications menu → All applications → Memory management.
The optimal balance between the size of the keys and the usable screen area is achieved by the combination: system font “Large” + Gboard keyboard height “Large.”
Is it safe to change the DPI value in developer mode?
Yes, it is safe if you do not go beyond reasonable limits. The Android system can recalculate the interface on the fly. If you set a value at which the interface will work, simply reboot the phone in safe mode or quickly return the original value if you have time to see the settings screen.
Why did the numbers in the top row disappear after enlarging the keyboard?
In some themes or with an extreme increase in height, the row with numbers may be hidden or replaced with a switch button. Check your Gboard settings: Preferences → Number Row. Make sure the switch is activated. If the keys become too large, a row of numbers may not physically fit, and the system will remove it to maintain functionality.
Is it possible to enlarge only the WhatsApp keyboard, leaving the rest small?
No, the keyboard is a system component. Changing its size in Gboard settings or system scale will affect all applications at once (SMS, browser, notes). It is impossible to adjust the keyboard size separately for each application without using complex automation scripts, which are not recommended for ordinary users.
What to do if the keyboard overlaps the input field?
This is a common problem with high magnification. There is a "Height Adjustment" or similar option in Gboard's settings that attempts to adapt the indentation. It will also help to turn on the “Hovering” mode of the keyboard, which allows you to manually lower it lower. As a last resort, reduce the system font by one step, leaving the keyboard height at maximum.