The Xiaomi Mi 9, which launched in 2019, still attracts interest from users looking for a balance between performance and image quality, and one of the main questions when choosing or replacing this device is the characteristics of the display, because it is responsible for visual perception of content, in which the company used advanced technologies that still look decent today.
Many users confuse the characteristics of different models of the Mi series, so it is important to clearly understand which panel is installed in the ninth model. The display here plays a key role in determining not only the quality of the picture, but also the power consumption of the gadget. Let's break down the technical details to give you a complete picture.
Unlike the more basic versions, it uses a premium solution that directly affects the cost of repairs in the event of damage, with a screen size of 6.39 inches, which is the standard for flagships of the period, providing comfort when watching videos and games. It is not just a marketing figure, but a real parameter that affects the ergonomics of the case.
Type of matrix and production technology
The display is based on Super technology AMOLED, This is a technology developed by Samsung, which means that each pixel is self-lit, which provides perfect black and high contrast, and it's this technology that allows you to create rich colors and deep blacks that you can't get from the top of your head. IPS-panel.
The manufacturer of the matrix was Samsung Display, which is a guarantee of high quality and durability. AMOLED The panels are fast-response, which is critical for dynamic games and scrolling. It is worth noting that in budget models Xiaomi often meet. LCD-The screens were not compromised in the Mi 9.
The technology allows you to place a fingerprint sensor right under the glass, which is what we see in this smartphone. The optical scanner is fast enough, although it is inferior to ultrasonic analogues in bright sun conditions. The color reproduction is tuned to please the eye, even if it does not always match the reference values from the box.
⚠️ Attention: AMOLED-screens are sensitive to static images, so it is recommended to use dynamic wallpaper and hide the navigation bar to avoid pixel burnout.
Technical details of subpixels
Resolution and pixel density
The display resolution is 2340×1080 pixels, which corresponds to the Full HD+ standard. The pixel density per inch (PPI) is 403, which provides high definition of the image. The human eye from a distance of 25-30 cm hardly notices individual points, which makes the picture smooth and detailed.
The 19.5:9 aspect ratio makes it comfortable to work with content in a modern format. The resolution is optimal: it doesn’t load as much as a GPU as 2K, but it looks very sharply. For most users, the difference between Full HD+ and 4K on a screen of this size is not noticeable.
It's important to remember that high resolution requires high-quality interface optimization. MIUI scales well, but some older applications may have font soapiness, but overall, the level of detail remains high even by today's standards.
- 📐 Diagonal: 6.39 inches
- 🔍 Resolution: 2340 x 1080 pixels
- 📊 Density: ~403 ppi
- 📐 Aspect ratio: 19.5:9
Update frequency and sensor layer
The screen refresh rate in Xiaomi Mi 9 is a standard 60 Hz. At the time of release, it was the absolute standard for the industry, although today many are used to 90 or 120 Hz. Smoothness of animations is ensured by optimizing the system, but the physical limit remains the same.
The touch layer supports multi-touch and is highly sensitive. The touch screen frequency is sufficient for a comfortable shooter game, although it does not reach the gaming record holders. The response to touch is almost instantaneous, which creates a sense of responsiveness of the interface.
It’s worth mentioning that the lack of high refresh rates is compensated for by good color calibration. 60Hz saves battery power, which for many users is more important than the smoothness of scrolling menus. If you move from a modern 120Hz smartphone, the difference can be noticeable, but not critical.
Brightness, color reproduction and HDR
One of the display's strengths is its support for HDR10, which allows you to play content with extended dynamic range, where the light areas are not overlit and the dark ones retain details, and when you watch videos on YouTube or Netflix, the difference is visible to the naked eye.
The maximum brightness reaches 600 nits in manual mode and can briefly rise to 1000 nits in automatic mode in bright sun. Contrast is 60,000:1, which is typical and high for the average sun. AMOLED-Even in direct sunlight, the screen remains readable.
The color gamut covers 103.4% of the NTSC standard, which makes the colors very saturated. In the display settings, you can switch between Standard, Saturated and Classic modes. HDR10 activates automatically when you play compatible content, improving the visual experience.
⚠️ In the "saturated" mode, colors may look unnaturally bright, so it is better to switch to the "Standard" mode or use calibration to work with photos.
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For maximum charge savings, turn on the "Dark theme" in the system settings - on AMOLED-Black pixels are completely turned off, which significantly reduces energy consumption.
Protective glass and oleophobic coating
The screen surface is protected by Corning Gorilla Glass 6. It's a durable material that can withstand many falls on hard surfaces, although it's not unkillable. The presence of sixth-generation protection suggests that the manufacturer has taken care of the device's durability.
The oleophobic coating is good and lasts for a long time when used carefully, prevents the spread of fat spots from the fingers and makes it easier to clean the screen, and over time, the coating can be erased at frequent touch, but initially it works perfectly.
When replacing glass, it is important to consider that in the original prefabricated modules, the quality of the oleophobic layer may differ. Gorilla Glass 6 also provides scratch protection, but contact with sand or keys is better excluded. Any damage to the glass structure can lead to its destruction on the next impact.
- 🛡️ Type of protection: Corning Gorilla Glass 6
- 💧 Oleophobic coating: present
- 🔨 Resistance to scratches: high
- 🧼 Ease of cleaning: excellent
Comparison with competitors and analogues
To understand the Xiaomi Mi 9’s place in the market, compare its screens to direct competitors of the time. Below is a table showing the key differences in display performance of popular flagships of 2019.
| Model | Type of matrix | Diagonal | Permission | Frequency |
|---|---|---|---|---|
| Xiaomi Mi 9 | Super AMOLED | 6.39" | 2340x1080 | 60 Hz |
| Samsung Galaxy S10 | Dynamic AMOLED | 6.1" | 3040x1440 | 60 Hz |
| OnePlus 7 | Optic AMOLED | 6.41" | 2340x1080 | 60 Hz |
| Huawei P30 Pro | OLED | 6.47" | 2340x1080 | 60 Hz |
As you can see from the table, the Xiaomi Mi 9 offers features identical to many competitors, but at a lower price. Full HD+ resolution is a reasonable compromise, whereas Samsung in the S10 went by increasing the pixel density.
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Xiaomi Mi 9 offers flagship AMOLED-Samsung matrix with excellent brightness and color reproduction, not inferior to more expensive analogues of that period.
Frequent problems and their solution
Despite the high quality, users may encounter certain screen problems, one of which is the "green hue" at minimum brightness, which is a feature of some games. AMOLED-There's also some uneven lighting around the edges, called the green screen effect".
When broken pixels or stripes appear on the screen, the module is most often replaced. Software methods such as calibration or resetting rarely help with physical damage. Defects can manifest over time due to bumps or pressure in the pocket.
You can use an engineering menu or special applications to diagnose the display status. Enter ##6484## in the dialer to get into the test menu. Select the item associated with the display to check the response and color reproduction.
##6484##⚠️ If purple spots appear on the screen that grow over time, this is a sign of the destruction of the organic layer - such a panel must be urgently changed until it ceases to glow completely.
Final evaluation and recommendations
The screen in Xiaomi Mi 9 can be called one of the best in its class and time. AMOLED-matrix, support HDR10 And the strong glass Gorilla Glass 6 makes it a versatile tool for multimedia.
If you're choosing this phone to buy from hand, be sure to check the screen on a white background at minimum brightness. Lack of burnout and uniformity of glow are key success factors. The image quality here is really high.
For those accustomed to high refresh rates, 60Hz may seem a bit small, but for most use cases that’s enough. Xiaomi Mi 9 demonstrates that even without a “hertz race” you can get a great visual experience thanks to a quality matrix.