How to determine the refresh rate of the screen on Xiaomi Redmi 9: 60 Hz or 90 Hz?

Why it’s important to know the redmi 9’s seal

Screen refresh rate (measured in hertz, Hz) is a key parameter that determines how smoothly the picture on the display of your Xiaomi Redmi 9. This affects not only the comfort of watching videos or scrolling through the tape in social networks, but also battery life. Many users mistakenly believe that all budget smartphones are equipped with 60-hertz screens, but the Redmi 9 is a special case.

The fact that Xiaomi Redmi 9 (model M2003J15SC) depending on the region and lot can be equipped with displays with different frequencies: standard 60 Hz or more advanced 90 Hz. At the same time, the externally identical smartphones, and the official specifications often indicate only the basic version. How to know which screen is installed in your device? In this article, we will analyze all available methods - from standard settings MIUI to engineering menus and third-party applications.

It is important to understand that the 90Hz frequency on the Redmi 9 is not always activated by default – even if your display supports increased hertz, the system can forcefully limit it to 60Hz to save battery power.

What Xiaomi Says About the Redmi 9

According to the manufacturer, Xiaomi Redmi 9 (global version) is being equipped IPS-resolution-screen HD+ (1600×720) diagonally 6.53". However, the technical specifications on the official website often indicate only the base refresh rate — 60 Hz. It's because:

• 📦 Regional differences: In some countries (e.g. India) versions with 90 hertz screens under the same name Redmi 9 were sold.
• 🔄 Line Updates: Late batches of devices could get improved displays without changing the model.
• 💰 Xiaomi does not always advertise the presence of 90 Hz in budget models, so as not to cannibalize sales of more expensive smartphones.

To identify your version accurately, look for the markings on the box or in the settings (Settings → Phone → Model). If it says M2003J15SS (Indian version) - chances are 90 Hz higher. But even that is not a guarantee: the final verdict will only give a practical test.

⚠️ Note: Some sellers deliberately list 90Hz when they are actually selling the standard version!

Method 1: Checking through MIUI settings (the easiest method)

If your Redmi 9 supports 90Hz, the MIUI settings should have a corresponding switch.

1. Open Settings (the gear icon on the main screen).
2. Go to the Screen section.
3. Select the screen refresh rate (or Refresh rate in English).
4. If you see 60Hz and 90Hz, your display supports a higher frequency, if only 60Hz, then the screen is standard.

Note that even if you have a switch, you can choose 60Hz by default to save charge, in which case you can manually turn on 90Hz, but be prepared for the battery to go down 10-15% faster.

Update MIUI to the latest version

Check the firmware region (must be India or Global)

Use alternative methods (see below)

Reset the screen settings to factory-->

⚠️ Note: Some firmwares have hidden the "Update Frequency" item, which doesn't mean your screen doesn't support 90Hz, but you may need to activate via the engineering menu.

Method 2: Use of an engineering menu (for advanced users)

If the standard settings do not give an answer, you can refer to the Engineering Mode, which requires caution, since incorrect actions can disrupt the smartphone.

1. Open the Phone app.
2. Enter the combination: ##4636###.
3. In the menu that appears, select Testing (or Testing).
4. Go to the section related to the display (the name may differ: Display, Screen or MTK Settings for devices running a MediaTek processor).
5. Look for options that contain refresh rate, FPS, or Hz.

In the engineering menu, you can see the current refresh rate, as well as the maximum supported. For example, if you display Current: 60Hz, Max: 90Hz, then your screen is capable of 90Hz, but now it is working in standard mode.

Be careful: changing unfamiliar settings in the engineering menu can lead to a loss of warranty or unstable screen performance. If you are not sure about your actions, you better use other methods.

Yes, to check the performance | Yes, to overclock the processor | No, I'm afraid to break the phone | No, I didn't know about this possibility-->

Method 3: Applications for testing hertzovka

If you don't want to go through the settings, you can use third-party apps that not only show the current refresh rate, but also help you test the smoothness of the screen.-3 tested:

• 📱 CPU-Z: Shows detailed information about the display, including resolution and frequency.Look for the Device tab → Display.
• 🔍 Display Tester: A specialized application to check the hertz, color reproduction and other screen parameters. There is a test for "tearing" of the frame (tearing), which helps to visually assess the smoothness of the screen.
• 📊 AIDA64: A powerful tool for diagnosing iron, and you can find the screen frequency in the Display section. → Refresh rate.

When using these applications, pay attention to the following nuances:

• Some utilities may show the current frequency rather than the maximum. For example, if you have a 90-hertz screen but the system has limited it to 60Hz, the app will display 60Hz.
• For an accurate test, it is recommended to turn on the “Do Not Interrupt” (or “Do Not Disturb”) mode and turn off all background processes that may affect performance.

If apps show different values, trust those that read directly from the display driver (e.g. AIDA64). Visual tests (like Display Tester) can yield subjective results.

💡

Before installing testing apps, check the reviews on Google Play — some utilities may contain ads or collect data.

Method 4: Visual smoothness test (without software)

If you can't install the apps, you can try to determine the hertz by eye using a simple test, which doesn't give you 100% accuracy, but it can give you a rough estimate of the smoothness of the screen:

1. Open any video on YouTube with 60 FPS resolution (e.g. gameplay or smartphone review).
2. Turn on full screen mode and quickly swipe your finger across the screen up and down.
3. Notice the smoothness of the scrolling: If the picture "breaks" or artifacts appear, you probably have 60 Hz. If the scrolling is smooth, without jerking, 90 Hz is possible.

30 FPS

This method is subjective, but experienced users can determine the hertz in this way quite accurately. For more certainty, compare the performance of your Redmi 9 with another smartphone whose screen frequency you know (for example, with the POCO X3, where 120 Hz).

You can also use online tests, like the TestUFO website, and open the 60Hz and 90Hz test page, and if you see a difference in smoothness, your screen is up to speed.

Method 5: Checking through ADB (for tech-savvy)

If you're familiar with ADB (Android Debug Bridge), you can get accurate information about the display through the command line, which is suitable for users who have already set up ADB on their PC.

1. Connect Redmi 9 to your computer via USB and enable Debugging via USB (Settings → About Phone → MIUI Version → 7 times click on the version, then go back to Settings → Additional → For Developers).
2. Open the command prompt (or Terminal on macOS/Linux) and type:

adb shell dumpsys display

1. In the output, look for lines containing refresh rate or fps.

If none of the methods worked, perhaps your screen is really limited to 60Hz at the hardware level, in which case the only way to get 90Hz is to replace the display module, which is not economically feasible for a budget smartphone.

💡

Before any manipulation of the screen settings, back up the data. In rare cases, changing the refresh rate can cause the graphics driver to crash and a black screen.

FAQ: Frequently Asked Questions About Redmi 9