How to find out the screen resolution on Xiaomi devices: from smartphones to TVs

Screen resolution is a key parameter that affects the quality of content display on Xiaomi devices. Knowing the exact resolution helps you choose the right wallpaper, adjust the interface zoom or check for compliance with the declared characteristics. For example, if you bought a Redmi Note 12 Pro + with a 2K screen, but the picture seems blurry, the first thing to do is make sure that the system is really using the maximum resolution.

In this article, we will discuss all the current ways to check screen resolution – from standard MIUI settings to hidden engineering menus and ADB commands. Particular attention will be paid to the nuances for different types of devices: smartphones, tablets (Xiaomi Pad) and TVs (Mi TV).

Method 1: Using MIUI settings (the easiest method)

The fastest way is to use the built-in MIUI settings.It is suitable for all Xiaomi smartphones and tablets, including the POCO and Black Shark models. The interface may vary slightly depending on the firmware version, but the overall logic remains.

Open the Settings app and go to About Phone (or About Tablet) and then select All Features or Device Specifications. Here in the Screen block, you will see the width resolution. Γ— height (e.g., height, 2400 Γ— 1080). On some devices, this information is hidden behind the optional settings.

  • βœ… It works on all versions. MIUI (including MIUI 14 and HyperOS)
  • ⚠️ In some models (for example, POCO F5) An effective resolution can be displayed taking into account software scaling
  • πŸ” If there is no item, try updating the firmware or using alternative methods.

⚠️ Note: On dynamic resolution devices (such as Xiaomi 13 Ultra), this menu may display the current value, not the maximum. To see all available modes, go to Settings β†’ Screen. β†’ Screen resolution.

πŸ“Š What kind of Xiaomi device do you have?
Smartphone
Tablet
Television
Smart watches
Other

Method 2: Engineering menu (for experienced users)

The engineering menu allows you to get real hardware screen resolution, which may differ from the one displayed in the settings due to software zooming.This method works on all Xiaomi devices with Qualcomm processors (for example, the Snapdragon 8 Gen 2 in Xiaomi 14).

To open the engineering menu, enter the phone combination in the application:

##4636##

Next, go to the phone information section and scroll down to the Screen block. Here you will find the settings:

  • Screen resolution (real) – hardware resolution of the matrix
  • Display resolution – current software resolution
  • Pixel density (DPI) – affects interface scale

If the combination doesn’t work, try alternative code for devices on MediaTek:

##36446337##

On some models (Redmi 10C, POCO M5), the engineering menu may be blocked by the manufacturer.

What to do if the engineering menu is not opened?
If the standard codes don’t work, the reasons may be: 1. Manufacturer blocked access (relevant to devices sold through telecom operators). 2. Custom firmware installed that removed the engineering menu. 3. MIUI version older than 12.5 – try to upgrade or use ADB (method 4).

Method 3: Using third-party applications

If standard methods don’t work, Google Play apps will come to the rescue. They not only show resolution, but also provide additional information about the screen: matrix type, HDR support, refresh rate, etc. We recommend three proven tools:

AnnexFeaturesSuitable for
DevCheckShows hardware and software resolution, DPI, screen modelAll devices on Android
CPU-ZDisplays resolution in the Device section, but without screen detailsSmartphones and tablets
Screen TestTests the screen for broken pixels and shows the current resolutionBetter for diagnosis.

To use DevCheck:

  1. Install the app from Google Play.
  2. Open the Hardware tab.
  3. Scroll to the Screen block – Resolution will be specified here (e.g. 1080Γ—2400).

Note: if the app displays a resolution of 720Γ—1600 and settings 1080Γ—2400, this may mean that the screen energy saving mode is enabled (relevant to Xiaomi 12T and later).

πŸ’‘

If the resolution in the application and settings differ, try turning off the option "Adaptive Resolution" in Settings β†’ Screen β†’ Additional. This can return the full resolution of the matrix.

Method 4: Through ADB (for developers)

The advanced user method, which requires connecting the device to a computer, allows you to get accurate data directly from the Android system, including hidden screen parameters. TV (You need to set up the debugging USB).

Instructions:

  1. Turn on Developer Mode (7 times click on the MIUI version in Settings β†’ About Phone).
  2. Activate USB Debugging in Settings β†’ Additional β†’ For developers.
  3. Connect the device to the PC and execute the command: adb shell dumpsys display In the output, find the lines: mBaseDisplayInfo=DisplayInfo{"name",..., width=1080, height=2400,...}

For Mi TVs, use the command:

adb shell wm size

It will return the current resolution in Physical size format: 3840x2160.

⚠️ Note: On some devices (e.g. Xiaomi Pad 6), the dumpsys display command can return multiple resolution values – look for a row with mBaseDisplayInfo, as this is the hardware resolution of the matrix.

β˜‘οΈ Preparation for use ADB

Done: 0 / 4

Method 5: For Xiaomi Mi TVs

Xiaomi TVs (Mi TV A2, Mi TV Q2, Mi TV P1) have a separate menu with screen information. Unlike smartphones, the resolution is often tied to the current signal source (for example, 4K when connected via HDMI 2.1).

To get permission,

  1. On the remote, press Settings (cogs).
  2. Go to General β†’ About TV β†’ Specifications.
  3. The screen block will specify the maximum resolution (e.g., 3840Γ—2160 for the Mi TV Q275).

If the TV is connected to a PC or console, the current resolution can be seen in the signal source menu:

  1. Click on the source (or input) remote.
  2. Select an active port (HDMI 1/2/3).
  3. The upper right corner will display the current resolution (e.g. 1920Γ—1080@60Hz).

πŸ’‘

On Xiaomi TVs, the resolution is controlled not only by the TV itself, but also by the signal source, for example, if a connected laptop outputs 1366Γ—768, the TV will automatically adjust to that resolution, even if it supports 4K.

Frequent problems and their solutions

Sometimes users encounter a discrepancy between the declared and the actual permission, and consider typical situations and ways to fix them:

  • πŸ”„ Resolution "jumps" when scrolling: Option Adaptive refresh rate is enabled (configure in Screen) β†’ Frequency of update).
  • πŸ“‰ The screen became "soap": Power saving mode may have been activated (check Settings) β†’ Battery β†’ Regimes).
  • πŸ–₯️ It's not on the TV. 4K: Make sure that the cable is used. HDMI 2.0 or later, and the mode is on UHD port-setting.
  • πŸ” Applications show different resolutions: This is normal – some programs (such as games) can force their permission to be set.

If, after checking, it is found that the actual resolution is lower than the declared one (for example, 1600Γ—720 instead of 2400Γ—1080), this may indicate:

  • Hardware defect of the matrix (relevant for used devices).
  • Incorrectly installed firmware (for example, ported from another device).
  • Activated hidden power saving mode (found on POCO X5 Pro).
Can I change the screen resolution on Xiaomi?
Yes, but not on all models. On most Xiaomi smartphones, you can choose from predefined values in Settings β†’ Screen β†’ Screen resolution. For example, the Redmi Note 11 Pro+ supports FHD+ (2400Γ—1080) and HD+ (1600Γ—720). However, the actual hardware resolution cannot be changed β€” you can only reduce the software to save charge. On Mi TVs, the resolution automatically adjusts to the signal source, but you can not manually change it.
Why is the resolution lower in games than in the system?
Many games (especially heavy ones like Genshin Impact or Call of Duty Mobile) automatically lower the resolution to boost FPS. This is normal optimization, not related to hardware limitations. To return full resolution: Open the graphics settings in the game. Choose the maximum resolution (usually denoted as Native or 100%). Make sure that the MIUI settings include performance mode (Settings β†’ Battery β†’ Modes β†’ Performance).
How to find out the screen resolution on Xiaomi without turning on the phone?
If the device is not turned on but the screen is physically healthy, you can try the following methods: Connect the phone to the PC and use ADB (if debugging was previously enabled). Command: adb shell dumpsys window displays See the model characteristics on the official Xiaomi website (Specification section). Use service codes to test the screen (for example, ##225## on some models). If the screen is completely black, you can only determine the resolution from the device model (for example, Xiaomi 13T always has a resolution of 2712Γ—1220).
Does screen resolution affect battery life?
Yes, and very significantly. The higher the resolution, the more pixels you need to upgrade, which increases the CPU load and therefore battery consumption. According to our tests: Switching from FHD+ to HD+ to Xiaomi 12S Ultra increases the time of operation by 15-20%. On budget models (Redmi 10A), the difference can be as much as 30%. On Mi TVs, the reduction in resolution from 4K to 1080p reduces power consumption by ~10%. If autonomy is critical, you can manually reduce the resolution in screen settings. However, this will affect the clarity of the text and image details.
How to check HDR support on Xiaomi screen?
Resolution and HDR are different things. To find out if your device supports HDR10 or Dolby Vision: On smartphones: go to Settings β†’ Screen β†’ Colors and Contrast. If you have an HDR or Dolby Vision option, the screen supports technology. On TVs: in specs (Settings β†’ TV), look for HDR10+ or Dolby Vision. Through apps: DevCheck shows HDR support in the Screen section. Note: Even if the screen supports HDR, the content must be in the appropriate format (for example, YouTube videos labeled HDR).