Display Xiaomi Mi 9T: technical characteristics, pros and cons of AMOLED-matrix

Smartphone Xiaomi Mi 9T, Launched in 2019, it has become one of the most popular mid-range devices thanks to its balanced performance and stylish design, with display being the key element in determining the visual perception of content. But what kind of screen is this model? Why did the manufacturer choose? AMOLED-matrix, not traditional IPS? How well do you make this choice for everyday use?

In this article, we’ll take a look at all aspects of the Mi 9T display, from basics like resolution and diagonal to the hidden nuances of color reproduction and energy efficiency, how to adjust the screen to suit your needs, what unique features AMOLED has in this model that set it apart from its competitors, and whether it’s worth buying a smartphone with such a display in 2026, and compare it with other Xiaomi flagships of the same period – so you can objectively assess the strengths and weaknesses.

Technical characteristics of the display Xiaomi Mi 9T

Xiaomi Mi Display 9T built-in AMOLED-Samsung's matrices, which guarantee deep blacks and high contrast:

  • πŸ“ Diagonal: 6.39 inches (16.23 cm)
  • πŸ” Permission: 2340 Γ— 1080 pixels (Full) HD+)
  • πŸ”„ Update frequency: 60 Hz (standard for 2019)
  • 🎨 Color scheme: support DCI-P3 (wide-colour)
  • πŸ”‹ Brightness: up to 600 nits (maximum in automatic mode)
  • πŸ›‘οΈ Protection: Gorilla Glass 5 (resistant to scratches)

The feature of this display is a hidden front camera, implemented through a retractable mechanism, which allowed the manufacturer to abandon the "bangs" or cutout ("drops"), making the screen as whole as possible, but this approach has affected the reliability of the design: over time, the mechanism can get clogged with dust or fail when used actively.

It is important to note that Mi 9T It doesn't support the high refresh rate (90Hz or 120Hz) that was typical of the flagships of the period, which is a compromise for the sake of lowering the price, but for most tasks, from watching videos to playing games, 60Hz is quite enough. PUBG Mobile or Call of Duty: Mobile may be a limitation.

πŸ“Š What type of display do you prefer in a smartphone?
AMOLED
IPS
LTPO OLED
Mini-LED
Whatever.

AMOLED vs IPS: Why Xiaomi chose this matrix

Smartphone manufacturers are constantly arguing about which type of display is better: AMOLED or IPS. In the case of the Mi 9T, the choice fell on the former, and here is why:

ParameterAMOLED (Mi 9T)IPS (alternative)
ContrastInfinite (true black)Limited to illumination (~1000:1)
Energy consumptionLow on dark topicsConstant (the backlight always works)
Viewing angles178Β° without distortion178Β° but color changes are possible
Price of productionMore expensive (especially for Full HD+)Cheaper.
DurabilityBurning out pixels over timeMore stable.

Main advantage AMOLED β€” It's a true black color, and it's achieved by turning off the pixels, and it gives you the contrast of the Mi screen. 9T It's theoretically infinite, which is especially noticeable when you watch movies with dark scenes or use dark themes, AMOLED-The displays are thinner and lighter, which allowed Xiaomi to make the case thinner without compromising battery capacity.

But there are some disadvantages to this technology, and the most obvious is the burning out of pixels when static elements are displayed for a long time (such as navigation bars or icons in the status bar). AMOLED-screens can show uneven brightness at low levels of backlight (called the β€œgray gradient”), which is noticeable when reading text in the dark.

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To reduce the risk of pixel burnout on AMOLED-display, enable the option "Hide the cutout" in the settings (Settings) β†’ Display. β†’ Full screen mode) and use dark wallpaper.

Color rendering and calibration: how to adjust the screen to yourself

By default, the Xiaomi Mi 9T display is set to a bright and rich profile that not everyone likes. Fortunately, the device provides flexible color settings that allow you to adapt the screen to specific tasks, from viewing photos to reading books.

To change the display parameters:

  1. Go to Settings β†’ Display.
  2. Select the Color Scheme item.
  3. Three modes available: 🌈 Standard (balanced, close to sRGB) 🎨 Saturated (increased brightness and contrast) πŸ“± Automatic (adapted to the content)

Color temperature

For professional tasks (e.g., photo processing), it is recommended to use the standard mode with the option "Automatic brightness" turned off, which will avoid color distortion when lighting changes. HDR-Video is better to activate a rich profile - it makes the picture more dynamic.

How do I check the screen calibration?
To check the accuracy of color reproduction, use specialized tests, for example, on the Lagom LCD website. Pay attention to gray gradients - if stripes or breaks are noticeable, this indicates an imperfect calibration.

Visibility and brightness in the sun: real tests

One of the key parameters of any display is the maximum brightness, which depends on the usability of the smartphone on the street. In the case of the Mi 9T, the manufacturer claims a peak brightness of 600 nits, but in practice this figure varies depending on the conditions:

  • β˜€οΈ In the sun: when automatically adjusting the screen accelerates to ~500-550 nits, which is enough to read messages, but not enough for comfortable video viewing.
  • 🌀️ In cloudy weather: brightness is enough with a margin, the picture remains clear.
  • πŸŒ™ At night: minimum brightness (~2 nits) allows you to use your smartphone in complete darkness without eye discomfort.

By comparison, flagship models from the same period (such as the Samsung Galaxy S10 or OnePlus 7 Pro) offered brightness of up to 800-1000 nits, making them more versatile, but the Mi 9T compensates for this by having good anti-reflective glass processing and high AMOLED contrast, which improves readability even in bright light.

⚠️ Attention: With prolonged use at maximum brightness AMOLED-The display can overheat, which causes the backlight to automatically decrease, which is a normal behavior designed to protect the matrix from degradation.

Comparison with displays of other Xiaomi smartphones 2019-2020

To better appreciate the Mi 9T screen, compare it to other popular Xiaomi models from the same period, which will help you understand how justified the choice of AMOLED and where the manufacturer saved.

ModelType of displayPermissionFrequency, Hz.Brightness, thread.
Xiaomi Mi 9TAMOLED2340 Γ— 108060600
Xiaomi Mi 9AMOLED2340 Γ— 108060600 (but with better calibration)
Xiaomi Redmi Note 8 ProIPS LCD2340 Γ— 108060500
Xiaomi Mi 9T ProAMOLED2340 Γ— 108060600 (similar to Mi 9T)
Xiaomi Black Shark 2AMOLED2340 Γ— 108060 (with 120Hz support in games)430 (but with better color rendering)

The table shows that Mi 9T It is not a leader in brightness or refresh rate, but it offers the best value for money among devices with a high-quality, high-quality, high-quality product. AMOLED-For example, the Redmi Note 8 Pro is cheaper, but uses it. IPS-The matrix with the worst contrast, and Black Shark 2, despite the game orientation, loses in maximum brightness.

Interesting fact: The Mi 9T Pro, which was positioned as an improved version, received the same display, but with a more powerful processor.This suggests that Xiaomi considered the Mi 9T screen good enough for even top-end tasks.

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If you want a high refresh rate (90Hz+) display, look for newer models like the POCO F3 or Redmi K40. In 2019, 60Hz was the mid-range standard.

Typical Mi 9T Display Problems and How to Solve Them

Despite the reliability of AMOLED-matrixes, the display Xiaomi Mi 9T can have characteristic problems over time.

  • πŸ”₯ Pixel Burnout: Appears as residual shadows from static elements (such as keyboards or navigation bars). Solution: Use dark themes and enable the pixel shift option in the developer settings (Settings) β†’ The phone. β†’ Version. MIUI β€” press 7 times).
  • 🌈 Uneven backlighting: The gray background may show greenish or pinkish hues around the edges. AMOLED, You can't fix it, but you can reduce it by manually calibrating the colors.
  • πŸ“΅ Sensor fails: Most commonly associated with plume damage after falling.Requires repair at service center.
  • πŸ”‹ Spontaneous brightness change: Wine is usually a light sensor. Check its performance in Settings β†’ Display. β†’ Automatic brightness or turn off the function.

The problem with the camera's retractable mechanism, which can block the display from jamming, is particularly noteworthy, in which case the smartphone emits a "Front camera error" and refuses to turn on the screen.

Clean the mechanism of dust with compressed air|Restart your phone in safe mode|Update the firmware to the latest version|Contact the service center (self-repair is not recommended)-->

⚠️ Attention: If colored stripes or artifacts appear on the display after a fall, do not try to "knock" on the body - this can aggravate damage to the matrix.

Should you buy the Xiaomi Mi 9T in 2026 in terms of display?

It’s been 5 years since the Xiaomi Mi 9T was released, and the display standards have changed significantly. Today, even budget smartphones get screens with a refresh rate of 90 Hz or 120 Hz, and AMOLED-matrixes have become even brighter and more energy efficient. So does it make sense to buy the Mi 9T in 2026?

The advantages of the Mi 9T display today:

  • βœ… Excellent contrast and deep black (relevant for film and photography).
  • βœ… Good color reproduction after manual calibration.
  • βœ… Compact sizes (6.39 inches) are comfortable for one hand.

Cons:

  • ❌ Outdated refresh rate (60Hz feels slow after modern smartphones).
  • ❌ Risk of pixel burnout when used actively.
  • ❌ No support. HDR10+ (basic HDR).

Conclusion: Xiaomi Mi 9T It is suitable for those who are looking for a budget smartphone with AMOLED-But if you're interested in smooth scrolling, brightness, or durability, you might want to look at newer models, like this, POCO X6 Pro or Redmi Note 13 Pro+.

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If you buy a Mi 9T used, be sure to check the display for broken pixels and burnout. Run a test for the uniformity of the backlight (for example, through the Screen Test app).

FAQ: Frequent questions about the display Xiaomi Mi 9T

Can we replace it? AMOLED-display IPS mi 9T?
Technically possible, but not recommended. AMOLED and IPS have different connectors and control protocols, so after the replacement, you may have problems with color reproduction, brightness or sensor. In addition, original parts for the Mi 9T are difficult to find today, and non-original matrixes are often of poorer quality.
Why do colored spots appear on the Mi 9T screen when tilted?
This is a normal phenomenon for AMOLED-displays associated with the polarization layer, with a strong tilt (more than 45)Β°) You may have greenish or purple hues. 9T This effect is less pronounced than in cheap smartphones, but it can not be completely eliminated.
How to turn on the read mode (monochrome screen) on the Mi 9T?
Go to Settings β†’ Display β†’ Reading Mode, where you can adjust the color temperature (warm to cold) and the automatic switching schedule, which reduces eye strain and saves battery life.
Does the Mi 9T Always-On Display (AOD) support?
Officially, no. However, you can activate this feature through Developer Settings or third-party apps like Always On AMOLED. Keep in mind that constantly displaying time and notifications will reduce battery life.
Which is better for Mi 9T or Redmi Note 8 Pro?
In terms of display, the Mi 9T definitely wins with AMOLED (best contrast and reaction to presses). However, the Redmi Note 8 Pro has a more powerful processor (Mediatek Helio G90T), which is more important for games. If the picture is the priority, take the Mi 9T; if FPS is the Note 8 Pro.