How many hertz does Xiaomi Redmi 9? Full screen frequency analysis and its impact on the user experience

Xiaomi Redmi 9 is one of the most popular budget smartphones of 2020, which is still actively used. When choosing a device, many people pay attention to the refresh rate of the screen (Hz), since this parameter directly affects the smoothness of the picture, scrolling comfort and gaming experience. But with Redmi 9, the situation is not so clear: the manufacturer does not always focus on this parameter, and in the technical specifications you can find conflicting information.

In this article, we will explore how many hertz the screen Xiaomi Redmi 9, how this frequency affects the performance of the smartphone, and why some users confuse it with other display parameters. You will also learn how to check the refresh rate of the screen, compare the Redmi 9 with competitors and give recommendations for optimizing the display for different tasks from watching videos to mobile games.

Xiaomi Redmi 9 screen specs: what does the manufacturer say?

According to the official website of Xiaomi, Redmi 9 fitted IPS-resolution-screen HD+ (1600 × 720) diagonally 6.53 However, the specification does not contain the update rate (Hz), which has caused a lot of controversy among users, with some claiming that the screen works on the screen. 60 Hz, others, what's on 90 Hz or even 120 Hz.

In fact, all Xiaomi Redmi 9 modifications (including Redmi 9A, 9C, 9T) have a 60Hz refresh rate screen. This is the standard value for budget smartphones from 2020-2021. Higher frequency (90Hz and higher) appeared later in the Redmi Note 10 and POCO X3 models. Confirmation can be found in tests from independent experts, for example, on the GSMArena channel or in reviews from NotebookCheck.

It’s important to understand that screen refresh rate (Hz) and touch sampling rate are different things. For example, Redmi 9 may have a 120Hz sensor survey rate (which improves responsiveness when playing games), but the screen only updates 60 times per second, a confusion that often confuses users.

⚠️ Note: Some vendors or reviewers may indicate "90 Hz" or "120 Hz" in terms of the frequency of the sensor survey, not the screen.

How to check the screen frequency on Xiaomi Redmi 9 yourself?

If you doubt the refresh rate of your Redmi 9 screen, you can check it in several ways, and the most reliable methods are using specialized applications or tests through the browser.

Method 1: Display Tester (Android)

Download the Display Tester app from Google Play.
Open the Refresh Rate section.
The screen will display the current refresh rate in hertz.

Method 2: Online test via browser

Open your browser and go to the TestUFO website.
Select the 60Hz vs 120Hz vs 144Hz test.
Compare the smoothness of the animation on your screen with reference values.

Method 3: Through the Engineering Menu (for advanced users)

#4636## → Phone information → Update frequency check

Note that this method may not work on all MIUI firmware.

Install the Display Tester application

Connect to a stable Wi-Fi

Charge your phone at least 50%

Turn off the power saving mode-->

Xiaomi Redmi 9 Comparison with Competitors: 60 Hz vs 90 Hz vs 120 Hz

The refresh rate of the screen is one of the key parameters that affect the perception of the smartphone. Let’s compare the Redmi 9 with other popular models in the budget and mid-range segment:

Smartphone model	Screen frequency (Hz)	Type of display	Price (2026, approximate)
Xiaomi Redmi 9	60 Hz	IPS LCD	~10 000 ₽
Redmi Note 10	90 Hz (AMOLED)	AMOLED	~15 000 ₽
POCO X3 Pro	120 Hz	IPS LCD	~18 000 ₽
Samsung Galaxy A12	60 Hz	PLS TFT	~12 000 ₽
Realme Narzo 30	90 Hz	IPS LCD	~14 000 ₽

And you can see from the table that Redmi 9 is losing to many of its competitors in terms of screen frequency, but it's winning in price. But 60 Hz isn't always a bad thing.

🎬 For video and TV shows, the difference between 60 Hz and 90 Hz is almost imperceptible (most content is shot in 24-30 frames).
📱 In everyday tasks (social networks, messengers) 60 Hz is enough for comfortable work.
🔋 Lower screen frequency reduces battery load, increasing battery life.

Where is the high frequency really important?

🎮 In mobile games (PUBG, Call of Duty, Genshin Impact – 90 Hz and above give an advantage in responsiveness.
📱 When scrolling through long lists (news feed, social networks) – animation becomes smoother.
🖥️ For users accustomed to high frequencies on PCs or more expensive smartphones.

60 Hz - enough for everything

90 Hz – optimal balance

120 Hz and above – I want maximum smoothness

I don't care if the screen is bright.-->

Can the Redmi 9 screen be overclocked to 90Hz or 120Hz?

Many users are wondering if it is possible to programmatically increase the screen frequency on Redmi 9? Unfortunately, the answer is no. The refresh rate of the display is determined by hardware (screen controller and firmware), and it is impossible to change it without replacing physical components.

However, on the network you can find instructions for "overclocking" the screen through:

🔄 Use of applications such as SetEdit or ADB-team.

⚠️ Warning: Any attempt to change the screen frequency through unofficial methods could damage the display, lose warranty or cause the smartphone to function unstable. On Redmi 9, such experiments are pointless - the hardware just doesn't support a frequency above 60Hz.

If you really want a high screen frequency, it’s best to consider buying another model, such as:

📱 Redmi Note 11 (90 Hz, AMOLED).
📱 POCO X4 Pro (120 Hz, AMOLED).
📱 Realme 9 Pro (90Hz, AMOLED).

What happens if you try to overclock the screen through ADB?

If you find a command like adb shell settings put global peak_refresh_rate 90, on the Redmi 9 It won't work. At best, the frequency will stay the same, at worst, the screen will start flickering or shut down. MIUI Blocks such changes at the hardware level.

How to improve the smoothness of the screen at 60 Hz?

While you can't change the screen frequency on Redmi 9, you can optimize the system to make the interface seem more responsive.

1. Enable the "No Delay" mode in the developer settings

Go to Settings → About Phone → MIUI version and tap 7 times to activate the developer mode.
Back to Settings → Additionally. → For developers.
Find the options: 🔹 Disable window animation (select No animations). 🔹 Animation scale and animation duration scale (set) 0.5x). 🔹 GPU-acceleration (on if disabled).

2.Use light launchers

The standard MIUI launcher can slow down on budget smartphones.

📱 Nova Launcher (Tunestable, Lightweight).
📱 Lawnchair (minimalistic, gesture-enabled).
📱 Microsoft Launcher (optimized for performance).

3. Optimize the graphics settings in games

In mobile games (PUBG, Call of Duty, Free Fire) install:

🎮 Graphics: Balanced or Low.
🎮 Frame rate: High (if available).
🎮 Turn off shadows and particle effects.

💡

If the interface becomes too sharp after the changes in the developer settings, return the animation to 1x. Completely turning off animation speeds up work, but makes transitions between screens less smooth.

Frequent Myths About Redmi 9 Screen Frequency

There are a lot of rumors and misconceptions about the frequency of the screen around Redmi 9.

Myth 1: “Redmi 9 supports 90Hz, but Xiaomi artificially limits the frequency”

❌ Reality: Redmi 9 screen is physically incapable of operating at a frequency above 60 Hz. This is confirmed by oscilloscope tests and technical documentation analysis. The manufacturer does not block the frequency — it simply does not exist in the hardware capabilities.

Myth 2: “After the MIUI update, the screen is running at 90 Hz.”

❌ Reality: Firmware updates can improve interface optimization, but they don't change hardware performance. If you think the screen is smoother after the update, it's more the result of animation optimization than frequency increases.

Myth 3: 60 Hz is bad for the eyes

❌ Reality: Screen refresh rates don't affect vision damage:

🔦 Screen brightness (must not exceed 60-70% in the dark).
🔵 Color temperature (Warm or Auto recommended).
⏱️ Continuous use time (take breaks every 30-40 minutes).

Myth 4: “Redmi 9 can enable 120Hz through hidden settings”

❌ Reality: All “secret” ways to overclock the screen are either deception or methods that work on other models (e.g., ad hoc screens, POCO X3). On the Redmi 9, they will either not work or cause a crash.

💡

The screen frequency is a hardware feature, and it can't be changed softwarely, just like you can turn a 4-core processor into an 8-core processor.

FAQ: Answers to popular questions about Redmi 9 screen frequency

❓ How many hertz does Redmi have? 9A redmi 9C?

All versions of the Redmi 9 series (including 9A, 9C, 9T) have a screen with a frequency of 60 Hz.

❓ Why some reviews say that the Redmi 9 has a 90Hz screen?

This is a mistake or deliberate misrepresentation, and it may be the touch sampling rate that is as high as 120 Hz on some models, but it is not the same as the refresh rate of the screen.

❓ Does 60Hz affect performance in games?

No, the screen frequency doesn't affect FPS (frames per second) in games. However, on a 60 Hz screen you won't see more than 60 frames per second, even if the game is 90 FPS. Gamers prefer screens with 90 Hz or 120 Hz.

❓ Can I replace the screen with Redmi 9 at 90 Hz?

Theoretically, you can find a compatible display with a different frequency, but: 🔧 It voids the warranty. 💰 The cost of replacement may exceed the price of the smartphone. ⚠️ There is no guarantee that the new screen will work correctly with the firmware.

❓ What Xiaomi smartphone with a 90 Hz screen can be bought instead of Redmi 9?

If you want a high screen frequency, pay attention to the: 📱 Redmi Note 10/11 (90 Hz AMOLED, ~15 000 ₽). 📱 POCO X4 Pro (120 Hz AMOLED, ~18 000 ₽). 📱 Xiaomi 11 Lite NE (90 Hz AMOLED, ~20 000 ₽).