Xiaomi Mi8 screen frequency: how much hertz, how to check and optimize

Xiaomi Mi8 is the flagship of 2018, which still remains relevant for many users. One of the key questions when choosing or configuring this smartphone is the refresh rate of the screen. How many hertz does the Mi8 display support, can it be changed, and how does it affect the operation of the device? In this article, we will analyze all the nuances, including comparison with other models of the series, how to check the frequency and tips for optimization.

Many people mistakenly believe that the screen frequency is directly related to performance or battery life. In fact, it is more complicated: the hertz depends on the smoothness of the animation, sensor response and even eye comfort. If you plan to buy a Mi8 used or already own it, this information will help avoid common errors in setting.

We will also touch on the myths of high-frequency “hidden” modes that can be activated via an engineering menu, and explain why this doesn’t work on the Mi8. And for those comparing models, here’s a table with the screen frequencies of the Mi8 SE, Mi8 Pro and Mi8 Lite.

How many hertz screen Xiaomi Mi8: official data

The Xiaomi Mi8 display is equipped with an AMOLED-matrix with a resolution of 2248×1080 pixels (Full HD+).The official screen refresh rate is 60 Hz. This is the standard value for most smartphones in 2018, including flagships of other brands (for example, Samsung Galaxy S9 or iPhone X).

It's important to understand that 60 Hz is not a disadvantage, but a conscious choice of the manufacturer. Mi8 screens with a frequency of 90 Hz or 120 Hz were rare and were only found in gaming smartphones (for example, Razer Phone, AMOLED-High refresh rate displays came later due to technical limitations: they required more power and could reduce battery life.

The documentation for the Mi8 (including the specifications on the official Xiaomi website) clearly states:

Display: 6.21 AMOLED, 60 Hz, HDR support, contrast ratio of 60,000:1.

This means that there are no “hidden” modes with 90 Hz or 120 Hz in this smartphone – contrary to the claims of some “experts” on the forums.

How to check the screen frequency on Xiaomi Mi8

If you're in doubt about the refresh rate of the display, or if you want to make sure that the smartphone is running normally, there are a few ways to check, and the most reliable is to use specialized applications.

• 📱 Display Tester (available on Google Play) – shows current frequency, supports flicker and color reproduction tests.
• 🔍 CPU-Z — Device displays information about the display, including frequency.
• 🎮 Game Bench is useful for gamers, as it fixes the frequency during games.

To check the frequency with the Display Tester:

1. Install the app from Google Play.
2. Launch it and go to the Refresh Rate tab.
3. The screen will display the current frequency (60 Hz).
4. For accuracy, repeat the test 2-3 times - the values should not differ.

If the app shows a value other than 60 Hz (e.g. 59.9 or 60.1), don’t panic: this is a normal measurement error. But if the frequency is stable below 58 Hz, this may indicate firmware problems or hardware malfunctions (e.g. damage to the display plume).

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If after updating MIUI the screen frequency began to "jump" (for example, 60 Hz, then 30 Hz), try resetting the display settings in Settings → Screen → Additional → Reset.

Can I change the screen frequency on the Xiaomi Mi8?

The short answer is no. The refresh rate of the Mi8 is fixed at the hardware level, and unlike newer models (such as the Xiaomi Mi 10T or POCO F3), where you can switch between 60 Hz and 144 Hz, there is no such option in the Mi8.

However, you can find "instructions" on the network to accelerate the screen to 90 Hz through:

• 🔧 Engineering menu (code ##4636##).
• 📲 ADB-commands (e.g. adb shell settings put global) peak_refresh_rate 90).
• 🔄 Custom firmware (such as LineageOS or Pixel Experience).

All of these methods don’t work on the Xiaomi Mi8 for the following reasons:

⚠️ Note: Attempts to change frequency through an engineering menu or ADB This could cause damage to the display or loss of warranty. Mi8 Does not physically support a frequency above 60 Hz, so any manipulation is useless.

The only thing you can do is optimize the display for smoother operation:

Include the option "Smooth transitions" in Settings → Special features → Smooth animation

Disable energy saving mode (it may limit GPU performance)

Update MIUI to the latest version (new firmware optimized work with the display)

Use a 60 FPS launcher (e.g. Nova Launcher)

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Screen frequency comparison: Mi8 vs Mi8 SE vs Mi8 Pro

If you're choosing between Mi8 series models, it's important to understand that the screen frequency varies, and this is due to different types of arrays and device positioning.

As you can see from the table, all Mi8 models have a frequency of 60 Hz. The differences are in the type of matrix (AMOLED vs IPS) and additional features (for example, HDR support or underscreen fingerprint scanner).

• 📱 Xiaomi Mi 10T (144 Hz)
• 📱 POCO F3 (120 Hz)
• 📱 Redmi Note 10 Pro (120 Hz)

The Effect of Screen Frequency on Autonomy and Performance

Many users mistakenly believe that screen frequency directly affects battery life or data processing speed, so let's see how this works in practice.

Autonomy:

The refresh rate of the screen has a slight effect on battery consumption, for example, switching from 60 Hz to 90 Hz increases the power consumption of the display on the screen. ~10-15%, but in Mi8 his AMOLED-The main expense of the matrix is the pixels, not the frequency, so if you use dark themes, the difference is minimal.

Productivity:

Screen frequency and FPS are different things. For example, in games, a smartphone can produce 120 FPS, but on a 60 Hz screen you will only see 60 frames. This is called screen tearing, but in the Mi8 it is almost not available thanks to VSync technology.

To check how frequency affects autonomy:

1. Charge your smartphone to 100%.
2. Turn on the Battery Saving mode in the settings.
3. Use the device for 2 hours (social networks, instant messengers, video).
4. Check the battery consumption in the Settings → Battery.

You’ll likely notice that the main expense is on the processor (Snapdragon 845) and communication modules (4G, Wi-Fi), rather than the display, as confirmed by tests from GSMArena and NotebookCheck, where the Mi8 shows a stable 6-7 hours of active screen at 60 Hz.

Frequent Mi8 screen problems and their solutions

Despite the reliability AMOLED-display Mi8, And users sometimes have some display problems, and let's look at the most common ones and how to fix them.

1. Screen flickering at low brightness

This is a common problem for AMOLED-PWM-adjusted matrices, with backlight levels below 30%, there may be a noticeable flicker that tires the eyes.

Decision:

• 🌓 Increase brightness to 35-40% or turn on Adaptive Brightness.
• 🔄 Update the firmware - in new versions MIUI added optimizations for PIM.
• 🛠️ If the flicker is strong, check the display plume (a break is possible).

2.The screen spontaneously reduces the frequency to 30 Hz

Sometimes the system is forced to lower the frequency to save battery, especially in the mode of energy saving.

Decision:

• ⚡ Turn off the savings mode in Settings → Battery.
• 🔄 Reboot your smartphone – sometimes it resets incorrect settings.
• 📱 Check the temperature of the processor (for example, through the AIDA64). If the smartphone overheats, the system may limit performance.

3. Color distortions or broken pixels AMOLED-screens may lose color uniformity over time (for example, a greenish or pink tint appears).

Decision:

• 🎨 Calibrate the color in the settings → Screen. → Colors of the display.
• 🔄 If the distortion is local (such as a broken pixel), use apps like Dead Pixel Test to diagnose the problem.
• 🛠️ In case of serious defects (for example, vertical stripes), a replacement of the display is required.

⚠️ Warning: If there are black spots or stains on the screen after a fall or impact, this indicates damage to the matrix, in which case repair is possible only by completely replacing the display module (cost) ~5-7 thousand rubles in service centers).

Myths about the screen frequency Xiaomi Mi8: what is true and what is not

There are many myths surrounding the Xiaomi Mi8, which are related to the frequency of the screen.

Myth 1: "You can overclock the screen to 90 Hz through the engineering menu" Reality: No. The refresh rate is fixed rigidly at the level of the display controller. The engineering menu allows you to change only the software settings (for example, the color gamut), but not the hardware settings.

Myth 2: "60 Hz is not enough for a comfortable work" Reality: 60 Hz is enough for most tasks: watching videos, surfing the Internet and even many games. The difference between 60 Hz and 90 Hz will only be noticed by experienced users or gamers playing dynamic shooters.

Myth 3: "AMOLED with 60 Hz consumes more power than IPS with 90 Hz" Reality: On the contrary. AMOLED only uses energy to illuminate the active pixels, whereas IPS illuminates the entire screen. So at the same frequency, Mi8 with AMOLED will be more economical than Mi8 Lite with IPS.

Myth 4: "Screen frequency affects sensor response rate" Reality: Update frequency and sensor sampling rate are different. In the Mi8, the sensor is polled at 180 Hz, which provides a fast response even at 60 Hz on the screen.

Myth 5: "After the MIUI update, the screen frequency increased" Reality: This is impossible. Firmware updates can optimize the display (e.g., reduce delays in animation), but will not change the physical frequency of the matrix.

FAQ: Answers to popular questions about the screen Xiaomi Mi8