Modern smartphones Xiaomi and Redmi offer users an incredible variety of matrixes, from budget to budget. HD-screens up to flagship panels with resolution 2K. Knowing the exact characteristics of the display is necessary not only to assess the quality of the picture, but also to correctly select wallpaper, screencasts or when there are problems with the layout of the interface. Often standard menus hide detailed technical information, giving only general phrases like "Full" HD+».
In this detailed guide, we will break down all the available methods for obtaining accurate screen resolution data, learn how to use hidden system utilities, engineering codes and third-party applications for deep diagnostics, which will allow you to fully control the visual parameters of your device.
Use of standard MIUI settings
The most obvious, but not always informative, way to look at the system menu. In the MIUI shell or the new HyperOS, the path to display information can vary depending on the Android version and the firmware region. Usually the data is in Settings → About Phone → All settings, but often only the marketing name of the matrix is indicated here.
For more information, go to Settings → Screen. Here you will find the refresh rate and resolution settings if the model supports changing them. Some flagship Xiaomi models allow you to switch between modes to save energy, and the current active value will be displayed in this section.
- 📱 Go to the main settings menu and select About Phone».
- 🔍 Click on the line "Version" MIUI» several times to see additional logs (not working on all models).
- ⚙️ Check the Screen and Brightness section to look for the Screen Resolution item».
⚠️ Note: The basic menu often displays logical resolution, which may differ from the physical because of the interface's software framework.
If you only see generic phrases in the standard menu, it hides technical details for the sake of simplicity, and then you need to resort to more advanced diagnostic methods that will open up access to real display parameters.
Checking through the engineering menu and codes
The engineering menu is a powerful tool for testing the hardware of a smartphone. To get there, you need to enter a special code in the call app. Most Redmi and Poco devices have a universal code ##6484## that opens the phone. CIT-Menu (Customer Inspection Test).
Once you enter the combination, you'll see a list of dozens of tests, and we're interested in the item associated with the display, often called Version Information or simply Display, and the window that opens will show the exact model of the matrix, its manufacturer, and the native resolution in pixels vertically and horizontally.
What if the code doesn't work?
An alternative way to get data is to use the code ##4636##. It opens the testing menu, where in the “Phone Information” or “Battery Information” section (depending on the chipset) you can find a line with the current rendering resolution of the interface.
- 📞 Open the phone app and dial ##6484##.
- 🧪 In the list of tests, find the item "Version" or "Display».
- 👀 Write down the specified width and height of the screen.
⚠️ Warning: Do not change the settings in the engineering menu unless you understand their purpose. This can lead to incorrect sensor or color rendering.
Use of diagnostic applications
If you don't want to mess with codes, specialized applications from the Google Play store will come to the rescue, the leader in this area is the AIDA64 utility or CPU-Z. They read data directly from the android system files and give the most accurate information about the hardware.
Once you install and run AIDA64, you need to go to the Display tab, and here you'll see not only the current resolution, but also the pixel density (DPI), the physical size of the diagonal in inches and the aspect ratio, which is especially useful for comparing the claimed characteristics with the real ones.
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Applications like Device Info HW can even show the type of matrix (OLED, IPS) and the name of the panel manufacturer, which is important when replacing the screen.
Another useful tool is Screen Test. This application not only shows numbers, but also allows you to visually assess the quality of displaying different colors, find broken pixels and check the uniformity of the backlight, which indirectly confirms the declared resolution.
- 📥 Download the app AIDA64 or CPU-Z log-store.
- 🚀 Start the program and wait for the data collection about the system.
- 📊 Go to the Display section to view the screen characteristics.
Using third-party software gives the most complete picture, including HDR support, color coverage and frame rate, which is not possible to see in the standard settings menu.
Comparison of characteristics of popular models
To help you compare the data with the references, we have prepared a table with the characteristics of the popular Xiaomi and Redmi smartphones. Please note that within the same model can be used different matrixes from different suppliers, so your numbers may differ slightly.
| Model of the device | Type of matrix | Permission (px) | Density (PPI) |
|---|---|---|---|
| Redmi Note 12 Pro | AMOLED | 2400 × 1080 | 395 |
| Xiaomi 13 Lite | AMOLED | 2400 × 1080 | 430 |
| Poco X5 Pro | AMOLED | 2400 × 1080 | 395 |
| Redmi 12C | IPS LCD | 1600 × 720 | 269 |
| Xiaomi 13 Pro | LTPO AMOLED | 3200 × 1440 | 522 |
As you can see from the table, even mid-range devices today have high PPI screens, which makes the picture very clear. Budget models like the Redmi C series often have HD+ resolution, which is noticeable on large diagonals.
Impact of Permit on Productivity
High-resolution screen is not only a beautiful picture, but also an increased load on the GPU. In games and heavy applications, rendering images in 2K requires much more resources than in Full HD. That is why in the settings of many games there is an opportunity to reduce the resolution of rendering.
Some MIUI firmwares have a DPI density change feature for developers. By changing this parameter, you can make the interface smaller or larger, but it doesn't change the physical resolution of the matrix, it just zooms in on the image. Excessive increase in DPI can cause some interface elements to become unreadable.
☑️ Optimizing the screen for games
If you notice that the smartphone has started to heat up or brake in the interface, it makes sense to check whether the maximum resolution and frame rate are set at the same time.
⚠️ Attention: Forced modification DPI through ADB-A team without knowledge can make the system unstable.
Technical issues and frequent questions
Understanding the difference between physical and logical resolution helps to better configure a device. Physical resolution is the number of real pixels on a matrix. Logical is the space that the operating system sees. On modern Android smartphones, these values often differ due to zoom ratios.
Also consider camera cutouts ("bangs", "holes") and curved edges of the screen. The system takes into account these areas, so the useful area for content may be less than stated in the specifications. For accurate color and brightness calibration, it is better to use factory settings or verified profiles.
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Knowing the exact screen resolution helps to correctly select content and diagnose problems with displaying the interface.
Regularly checking the characteristics of the device is useful when buying used equipment. If you see characteristics in the settings or through applications that are radically different from the ones claimed for this model (for example, HD instead of Full HD on the flagship), this may indicate replacing the screen with a cheap analogue or flashing the registry.