How many hertz screen Xiaomi Mi 8: technical details and practical tips

Xiaomi Mi 8 is the flagship of 2018, which still remains relevant for many users. One of the key questions that worries owners and potential buyers: how much hertz does the screen of this smartphone? The answer seems simple, but in practice hides a lot of nuances โ€“ from hardware limitations to software optimizations. MIUI.

In this article, we will not only reveal the official characteristics of the Mi 8 display, but also explain why the refresh rate of the screen affects the perception of the picture, how to check it yourself, and what to do if you think that the screen is โ€œbraking.โ€

If you're planning on buying a used model, or you just want to make the most of your gadget, this information is going to be useful. Let's start with the basic data.

Xiaomi Mi 8 screen specs: what the manufacturer says

According to the specifications from Xiaomi, Mi 8 fitted 6,21-inch AMOLED-resolution-screen 2248ร—1080 pixels (Full) HD+). The manufacturer states the following key display parameters:

  • ๐Ÿ”น Upgrade frequency: 60 Hz (standard for 2018 flagships)
  • ๐Ÿ”น Aspect ratio: 18.7:9
  • ๐Ÿ”น Peak brightness: up to 600 nits (in mode) HDR)
  • ๐Ÿ”น Support HDR10
  • ๐Ÿ”น Contrast: 60,000:1 (typical of the AMOLED)

It's important to understand that 60Hz is a fixed frequency. Unlike modern smartphones with 90Hz, 120Hz or adaptive frequency, the Mi 8 does not support dynamic change of hertz, which means that the screen updates the picture exactly 60 times per second - regardless of the use case.

But why then do some users claim to see "slowdowns" or uneven scrolling? The reasons may lie not in the frequency of the screen, but in the optimization of the screen. MIUI Or the hardware limitations of the Snapdragon 845 processor.

๐Ÿ“Š What screen frequency do you think is optimal for a smartphone?
60 Hz (enough)
90 Hz (middle ground)
120 Hz and above (maximum smoothness)
Adaptive (automatic adjustment)
I don't care.

How to check the actual screen refresh rate on the Mi 8

If you're in doubt about the performance, or if you want to make sure the screen is working correctly, there are several ways to measure refresh rates. Importantly, all methods will show 60 Hz, because the Mi 8 hardware doesn't support other values, but checking will help to rule out software failures.

Method 1: Engineering menu (for experienced users)

This method requires caution, as incorrect actions in the engineering menu can disrupt the operation of the device.

  1. Open the Phone app and enter the combination: ##4636##.
  2. In the menu that appears, select Testing. โ†’ Screen.
  3. Find the Refresh Rate option, and the current value (60 Hz) will be indicated.

๐Ÿ’ก

If the engineering menu doesn't open, check if your carrier is blocking it, and some firmware has limited access to it.

Method 2: Specialized applications

Install one of these apps from Google Play:

  • ๐Ÿ“ฑ Screen Refresh Rate Tester โ€“ Shows current and maximum frequency.
  • ๐Ÿ“ฑ Display Tester - checks not only hertzovka, but also color reproduction, touchscreen.
  • ๐Ÿ“ฑ CPU-Z โ€” In the Device section, displays information about the display.

All these utilities will confirm that the Mi 8 runs at 60 Hz. If the application shows a different value, it is either a software error or a feature fraud (relevant to the used market).

Method 3: Visual Test with Camera

This is a "grandfather" method, but it works:

  1. Turn on a white page (for example, an empty document in Google Docs).
  2. Point the camera of another smartphone to the screen of the Mi 8.
  3. If the video shows stripes or flickering - this confirms the work at 60 Hz (at 90).+ Hz bands will be more frequent).
Why is the camera showing the stripes?
This is due to the difference in the frequency of the camera shooting and the screen updating: the camera captures the picture at one frequency (for example, 30 fps), and the screen is updated at another (60 Hz), which results in the effect of a strobescope, which creates stripes.

Comparison with competitors: 60 Hz vs 90 Hz vs 120 Hz

In 2018, 60 Hz was the standard even for flagships. But already in 2019-2020, manufacturers began to massively switch to 90 Hz and 120 Hz. Let's compare what the Mi 8 looks like against the background of modern devices.

ModelYear of releaseScreen frequency (Hz)Screen typeProcessor
Xiaomi Mi 8201860AMOLEDSnapdragon 845
Xiaomi Mi 9201960AMOLEDSnapdragon 855
Xiaomi Mi 10202090AMOLEDSnapdragon 865
Xiaomi Mi 112021120AMOLED, 2KSnapdragon 888
Samsung Galaxy S10201960 (optional 90 in) S10+)Dynamic AMOLEDExynos 9820

The table shows that the Mi 8 did not lag behind the competitors of its time (Galaxy). S9 Xiaomi also had 60 Hz, but within a year, Xiaomi began to introduce 90 Hz into its flagships. Today, 60 Hz is considered a budget solution, and 120 Hz is the standard for premium smartphones.

But is it worth changing the Mi 8 for that? It depends on your tasks.

  • ๐ŸŽฎ For gamers: 60 Hz may limit FPS in dynamic games (for example, in the PUBG Mobile or Call of Duty).
  • ๐Ÿ“ฑ For everyday tasks: the difference between 60 and 90 Hz is noticeable, but not critical.
  • ๐ŸŽฅ For video viewing: screen frequency does not affect the quality of playback (more important resolution and color reproduction).

๐Ÿ’ก

Screen frequency is important for smooth animation and scrolling, but does not affect processor performance or camera shooting quality.

Myths and Truths About Screen Frequency in Mi 8

You can find claims online that the Mi 8 is "hiddenly" 90Hz or that you can overclock the frequency through an engineering menu.

Myth 1: โ€œMi 8 supports 90 Hz, but Xiaomi has artificially limited the frequencyโ€

The hardware (display module and controller) in the Mi 8 is not physically capable of operating at a frequency above 60 Hz. Even if Xiaomi wanted to unlock this feature, technically it is impossible without replacing the screen.

Myth 2: โ€œYou can turn on 120 Hz through custom firmwareโ€

No, no firmware (including LineageOS or Pixel Experience) can change the hardware constraints. MIUI, But it won't increase the actual pixel refresh rate.

Myth 3: โ€œMi 8 screen flickeres at 60 Hz, which is bad for visionโ€

Twinkle (PWM) is actually present in the AMOLED-It's usually 200-300 Hz, which is invisible to the human eye. DC dimming (brightness adjustment without flickering) at low levels of backlight, which reduces eye strain.

๐Ÿ’ก

If you are concerned about flickering, turn on reading mode in Settings โ†’ Display. โ†’ Read mode. It reduces the blue component of light.

Myth 4: โ€œ60 Hz slows down gamesโ€

Screen frequency and FPS (frames per second) -- different things. If your Mi 8 is 60. FPS In a game, the screen will display them all, and the picture will be smooth. FPS exceeds 60 (e.g. 90) FPS), But the screen can't physically show more than 60 frames per second, and in this case, it turns on V-Sync, which is limited. FPS 60.

However, for most mobile games (even in 2026) 60 are available. FPS โ€” The exception is in esports, where every millisecond counts.

How to improve screen perception at 60 Hz: tips for setting up

While it's impossible to change the screen frequency, you can optimize the Mi 8 to make the interface seem smoother.

1. Enable animation at maximum speed

By default. MIUI It uses late-stage animation to speed it up:

  1. Go to Settings. โ†’ The phone.
  2. Click 7 times on the MIUI version to activate the developer mode.
  3. Back to Settings โ†’ Additionally. โ†’ For developers.
  4. Find the items: The scale of window animation โ†’ Choose No Animation or 0,5x. Scale of transition animation โ†’ 0,5x. Duration of the animator โ†’ Off..

Reduce the scale of window animation to 0,5x|Disable the duration of the animator|Enable the developer mode|Reboot your phone after the changes-->

2.Use light launchers

Standard launcher MIUI It can slow down because of extra widgets and animations:

  • ๐Ÿ“ฑ Nova Launcher โ€“ supports setting the animation speed.
  • ๐Ÿ“ฑ Lawnchair โ€“ lightweight launcher with minimalist design.
  • ๐Ÿ“ฑ Microsoft Launcher โ€“ Optimized for Performance.

3. Turn off unnecessary visuals

MIUI I love the โ€œshoesโ€ that consume resources:

  • ๐Ÿ–ผ๏ธ Turn off the live wallpaper (they are constantly animated in the background).
  • ๐Ÿ“Š Reduce the transparency of the interface in Settings โ†’ Display. โ†’ Screen style.
  • ๐Ÿ”„ Turn off auto-update widgets (such as weather or news).

4. Update. MIUI last-minute

Xiaomi regularly optimizes firmware for older models. Check for updates:

  1. Go to Settings โ†’ About the phone โ†’ System update.
  2. If you have an update, install it, and even minor updates can improve the smoothness of the interface.
What to do if the update is not installed?
If the system writes "Boot Error", try: 1. Connect to another Wi-Fi network. 2. Reset network settings to Settings โ†’ SIM-maps and mobile networks โ†’ Reset network settings. 3. Install the update manually through MIUI bootloader (download firmware from the official Xiaomi website and select it from the update menu).

Frequent Mi 8 screen problems and their solutions

Despite the reliability AMOLED-In the case of displays, Mi 8 users sometimes face problems. Let's look at the typical cases and how to fix them.

Possible causes and solutions:

  • ๐Ÿ”‹ Low battery charge: AMOLED-The screens can flicker at a charge level below 15.
  • ๐ŸŒก๏ธ Overheating: If the phone gets hot, the screen may dim or flicker. let it cool.
  • ๐Ÿ”„ Software failure: Reset the device. If it doesn't work, reset the screen settings to Settings. โ†’ Display. โ†’ Resetting settings.
  • ๐Ÿ› ๏ธ Hardware malfunction: If the flicker doesn't go away, the screen plume may have gone away.

Problem 2: The colors on the screen are distorted

AMOLED-screens may lose color accuracy over time:

  1. Go to Settings โ†’ Display โ†’ Color scheme.
  2. Choose Standard (not "Saturated" or "Warm").
  3. If the colors are not correct, calibrate the screen via the engineering menu (#6484##).

Problem 3: The screen does not respond to touch

This may be related to:

  • ๐Ÿงค Screen Pollution: Wipe the display with a dry wipe.
  • ๐Ÿ“ฑ Touch screen failure: Reset your phone. If it doesn't work, check if there's a defective protective film installed.
  • ๐Ÿ”ง Damage to the digitizer: If part of the screen does not respond, a touchscreen replacement will be required.

๐Ÿ’ก

If the screen stops responding to touches after falling or getting moisture, DO NOT try to disassemble the phone yourself - this can lead to a short circuit!

Problem 4: There are broken pixels on the screen

AMOLED-screens are prone to pixel burnout. If you notice colored dots that don't disappear:

  • ๐Ÿ” Check if it's a software artifact: take a picture of the screen with another camera. If the pixels are visible in the photo, it's a hardware problem.
  • ๐Ÿ› ๏ธ You can sometimes overclock broken pixels in software, but it's a temporary solution.
  • โš ๏ธ Donโ€™t use apps to โ€œcureโ€ broken pixels โ€“ they can make the problem worse.

Should you buy the Xiaomi Mi 8 in 2026 in terms of screen?

The Xiaomi Mi 8 is a great smartphone for its time, but by modern standards, its screen has a few drawbacks. Let's weigh the pros and cons.

The advantages of the Mi 8 screen:

  • โœ… AMOLED-matrix: deep black color, high contrast.
  • โœ… HDR10: Support for extended dynamic range for video.
  • โœ… Good color reproduction: after calibration, the colors look natural.
  • โœ… Energy efficiency: AMOLED Consumes less energy when displaying dark topics.

Disadvantages of the Mi 8 screen:

  • โŒ Only 60Hz: Compared to modern smartphones, animation seems less smooth.
  • โŒ No Always-On Display (AOD): Unlike the new models, the screen is completely turned off in standby mode.
  • โŒ pixel burnout: after 4-5 years of heavy use, traces of static elements (for example, navigation panels) may appear).
  • โŒ No high frequency of touchscreen sampling: modern screens process touches faster (up to 240 Hz vs 120 Hz in the Mi 8).

Who will be the Mi 8 in 2026?

  • ๐Ÿ’ฐ Budget users: if you need a reliable smartphone for 10-15 thousand rubles.
  • ๐Ÿ“ท Mi 8 camera still competitive in its class.
  • ๐ŸŽฎ Light gamers: for Genshin Impact on medium settings or Among Us performance will be enough.

Who better to choose another model?

  • ๐ŸŽฎ Esports gamers: for Call of Duty Mobile or PUBG At maximum settings it is better to take a smartphone with 90+ Hz.
  • ๐Ÿ‘“ Smooth users: If youโ€™re used to 120Hz, 60Hz will seem like โ€œbrakes".
  • ๐Ÿ”‹ Those who want long-term support for updates: Mi 8 no longer gets new versions MIUI.
๐Ÿ“Š You would buy Xiaomi Mi 8 in 2026?
Yeah, for that price, it's a great choice.
No, it's got an outdated screen.
Only if for secondary tasks
I'm already using it and I'm happy.
I prefer the new model.

FAQ: Answers to Frequent Questions About Xiaomi Mi Screen 8

Can I overclock the Mi 8 screen to 90 Hz?
No, it's impossible. The screen refresh rate is determined by the hardware (display module and controller), and the Mi 8 doesn't physically support the frequency above 60 Hz. Any promises of "overclocking" through firmware or engineering menus are a hoax.
Why Mi 8 doesn't have Always-On Display (AOD)?
In 2018, Xiaomi did not implement AOD And they used their smartphones, because it required additional energy optimization, AMOLED-The Mi 8 screen did not support the low-frequency update of individual pixels required for the AOD. This feature came later, starting with the Mi 9 and Mi 10.
How to reduce screen burnout on the Mi 8?
To extend life AMOLED-display: ๐Ÿ”„ Use dark themes and wallpaper. ๐Ÿ•’ Reduce the time of automatic screen shutdown (in Settings) โ†’ Display. โ†’ Sleeping mode). ๐Ÿ”‹ Avoid maximum brightness without needing it. ๐Ÿ“ฑ Periodically change the location of static elements (for example, navigation panels).
Does the Mi 8 support adaptive sync?
No, the Mi 8 does not support adaptive synchronization (e.g. Nvidia G-Sync or the Nvidia G-Sync). AMD FreeSync: This technology came to mobile devices later and requires special hardware support that this smartphone doesnโ€™t have.
Can I replace the Mi 8 with a 90Hz screen?
Theoretically possible, but in practice it is extremely difficult and impractical: ๐Ÿ”ง Not only will you need to replace the display module, but also the firmware of the new controller. ๐Ÿ’ฐ The cost of such a replacement will exceed the price of the smartphone itself. โš ๏ธ There is a high risk of motherboard incompatibility. If you need a 90Hz screen, it is easier to buy another smartphone (for example, a new one, POCO X3 Or the Redmi Note 10 Pro).