Owners of modern smartphones Xiaomi, Redmi and Poco often wonder about the technical characteristics of their display. Screen refresh rate is a parameter that determines how many times a second the image on the monitor changes the frame. The higher this indicator, the smoother the interface, scrolling tape and animation in games.
Understanding where to view this information is not only necessary to satisfy curiosity, but also to optimize the device. The Hertz configuration directly affects the autonomy of the gadget and the visual comfort of the user. In this article, we will discuss all the available methods for checking and adjusting this parameter.
There are several ways to get accurate data, from the standard settings menu to the use of engineering menus and third-party utilities. Each method has its own characteristics and is suitable for different use cases. Let's take a detailed look at how to find these hidden or explicit settings in the shell of MIUI or HyperOS.
Standard settings of the MIUI and HyperOS interface
The easiest and safest way to find out the current frame rate is to look at the system menu. Xiaomi manufacturers in the latest firmware versions have put this option prominently, you need to open Settings and go to the Screen section. There is often the Update Frequency or Refresh Rate.
Depending on your smartphone model, the list of available values may vary. Budget models usually offer a choice between 60 Hz and 90 Hz, whereas flagship Xiaomi 13 or Poco F5 devices can support up to 120 Hz or even higher. If the menu indicates Default or Auto mode, the system decides when to increase the herz for energy savings.
⚠️ Note: In some models with AMOLED-Selecting a high refresh rate can block the ability to dim brightness below a certain threshold or disable the Always On Display feature.
If you want to force the maximum value to check the smoothness, select the appropriate item in the list. However, remember that constant operation at the maximum frequency drains the battery faster. For everyday use, the optimal automatic mode that adapts to the content.
☑️ Checking screen settings
Using the Engineering Menu for Diagnostics
For a deeper diagnosis that shows the actual frame rate, not the declared frame rate, at the moment, you can use the engineering menu. This is a hidden part of the system, designed to test hardware components. To get there, open the Phone application and type the combination ##6484##.
The CIT (Customer Integration Test) that opens up, you need to find a item associated with the display, which can be called Version, Display or Screen. Within this menu, you often display technical information about the panel, including its native resolution and supported modes, which is especially useful if you bought a used device and want to make sure that the matrix is original.
The interface of the engineering menu may vary on different versions of MIUI. If the standard code doesn't work, try entering ##4636##, although this path more often leads to network and battery information.
What if the code doesn't work?
Applications for real-time monitoring
When built-in tools are scarce, Google Play apps come to the rescue, allowing you to see your current frame rate in real time by displaying an FPS (frames per second) directly on top of other windows, and this is the perfect way to check if your claimed hertzovka is actually working in games or scrolling.
One of the most popular tools is the Device Info HW app, which reads data directly from the device drivers. Once installed, run the program and go to the Screen tab, which will show the exact matrix model and its physical characteristics, including the maximum frequency supported.
Another useful tool is FPS Meter or Screen Test, which not only shows static data, but also performs stability tests, and can show if the Hertzow falls when the CPU is under high load, which is critical for gamers playing heavy shooters on Xiaomi Black Shark or Poco.
- 📱 Device Info HW — Detailed information about the sensor and sensor.
- ⚡ FPS Monitor – displays the frame counter on top of running applications.
- 🔍 AIDA64 — Comprehensive analysis of the entire system, including the display.
- 🛠️ Screen Test – check for broken pixels and responsiveness of the touchscreen.
Comparison of display modes
Understanding the difference between available modes helps you choose the optimal balance between performance and power consumption. Modern Xiaomi panels use LTPS or LTPO technology, which allows you to dynamically change the frequency.
The table below compares the main modes available in the settings of most of the brand’s current smartphones:
| Regime. | Frequency (Hz) | Impact on the battery | Recommendation |
|---|---|---|---|
| Standard. | 60 Hz | Minimum | For reading and saving |
| High-pitched | 90/120 Hz | Medium/High | For games and social media |
| Auto (Smart) | Dynamic. | Optimal. | Daily use |
| Maximum | 144 Hz+ | Critical | Only for gaming. |
By choosing 60Hz, you are guaranteed to extend the smartphone’s life from a single charge, which is true for models with less than the most capacious battery, while switching to 120Hz makes the interface much more enjoyable, creating a sense of faster system performance, even if the processor is not the most powerful.
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Auto mode is the middle ground: it raises the hertz only when it is needed, for example, when scrolling, and lowers to 1 Hz when viewing a photo or reading text.
The effect of frequency on autonomy and heating
Many users ignore the fact that high refresh rates require more processing power from the graphics accelerator and more frequent access to memory, which leads to increased heat generation. On devices with passive cooling or weak heat sink, this can cause trottling (decreased performance) in hot weather.
If you notice your Xiaomi is rapidly discharged or getting warm at the top of the case, try lowering the frequency to 60Hz. The difference in visual perception may not be as noticeable in static applications as the difference in running time.
⚠️ Note: When using the Game Turbo mode, the system can ignore system limitations and force a high frequency, which will lead to rapid heating.
Also, some applications, especially video players and streaming services, may not work properly at non-standard frequencies, causing sound and video to become unsynchronized, and in such cases, returning to the standard 60Hz often solves the problem.
Hidden Options through ADB and Developer Options
For advanced users who want to have full control of their device, there are hidden settings available through the Developer Menu, and you need to quickly click 7 times on the MIUI version in the About Phone section to activate it.
Inside the developer menu, find the Show refresh rate, which will display a digital indicator of the current hertz in the upper left corner of the screen, and the best way to understand how your smartphone adaptive screen works in different situations, and you will see the number jump from 1 to 120.
A more radical method is to use USB debugging and a computer, and with ADB, you can force the frequency to be set even if it's hidden in the menu, so you can connect the phone to your PC, enable debugging, and type in the terminal:
adb shell wm sizeadb shell wm densityWhile direct commands to change the herring through ADB are driver-specific and often require root rights, the mere fact of accessing these options reveals the depth of customization of Xiaomi-based Android. Beware: Incorrect commands can lead to unstable interface performance.
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Before making changes to hidden settings through ADB, be sure to make a full backup of the data, as experimenting with the system settings of the display may lead to the need to reset the settings.