The question of how many inches in a Xiaomi Mi 9T is one of the most common choices when choosing a device, especially when the user is looking for a balance between the convenience of one hand and multimedia capabilities. This model, known globally as the Redmi K20, has become a hit thanks to its frameless design and outgoing camera, which allowed engineers to fit an impressive diagonal in a relatively compact case.
The answer to the main question is clear: the diagonal of the display is 6.39 inches. This value is the “golden mean” in the modern segment of smartphones, providing excellent readability of text and comfortable viewing of video without excessively increasing the dimensions of the device.
When choosing a smartphone, there is often confusion between the standard version and the Pro modification, but in this particular case, the screen sizes are identical. AMOLED, The device used in this device allows you to achieve deep black color and high contrast, which visually makes the picture more saturated compared to the image of the image. IPS-Understanding the real size helps you to choose the right protective glass or cover that will not interfere with the operation of the device.
Technical characteristics of the display and matrix
The screen of the smartphone Xiaomi Mi 9T is made by AMOLED technology from Samsung, which in itself is a guarantee of color reproduction. Diagonal 6.39 inches corresponds to the physical size of the visible area diagonally, but it is more important to pay attention to the resolution, which is 2340×1080 pixels. This aspect ratio 19.5:9 provides an elongated shape, convenient for scrolling through social networks and watching modern video content.
The pixel-per-inch (PPI) density of this device reaches 403, making the picture incredibly clear, almost eliminating the ability to distinguish individual points even on close inspection. Support for HDR10 extends the dynamic range, allowing you to see more detail in dark and light areas of the image when viewing compatible content.
⚠️ Note: Despite the high brightness of the matrix, in direct sunlight, automatic adjustment can behave aggressively. It is recommended to manually set the backlight level to maximum when using the navigator in bright weather.
An important aspect is the presence of the Always-On Display feature, which allows you to display time and notifications on the screen off without the risk of pixel burnout, thanks to the features of AMOLED technology. Color coverage covers more than 100% of the NTSC space, which makes the colors juicy, although some users may need to calibrate in the settings menu to achieve more natural shades.
Physical dimensions of the body and ergonomics
Knowing that the screen is 6.39 inches, many people mistakenly assume that the smartphone itself will be huge. However, due to the minimal bezels and the absence of “bangs” (front camera retractable), the physical dimensions of the body remain quite compact. The width of the device is 74.3 mm, which allows you to confidently cover it with the fingers of the middle hand, and the thickness of 8.8 mm (excluding the camera ledge) makes it convenient to wear in pockets of jeans.
The weight of the smartphone is 191 grams, which is an excellent indicator for a device with a metal frame and a glass back panel. The mass distribution inside the case is done correctly, the center of gravity is not shifted, so with prolonged use with one hand, the stockpile is not as strong as that of competitors with heavier batteries or metal housings throughout the area.
- 📏 Height: 156.7 mm – comfortable for most users.
- 📐 Width: 74.3 mm - allows you to print with two thumbs without rolling.
- ⚖️ Weight: 191g - feels light, but not cheap.
- 🔋 8.8 mm thickness – standard for capacious battery devices.
The ergonomics of the device also depend on the back panel material, which in the Mi 9T version is made of tempered glass Gorilla Glass 5. This adds premium to the device, but makes it slippery, so using a protective case is almost necessary for comfortable and safe use.
☑️ Checking ergonomics in the store
Xiaomi Mi 9T and Mi 9T Pro: Is there a difference in screen?
One of the most common misconceptions is that the Pro version has a larger or better screen. In reality, Xiaomi engineers left the display module identical for both models. Both the regular Mi 9T and the Mi 9T Pro use the same AMOLED matrix with a diagonal of 6.39 inches, the same resolution and refresh rate of 60 Hz.
The differences between the models lie solely in the “internal filling”: the processor, charging speed and the presence of an NFC module in the global version of the Pro. The screen part, including the touchscreen and plumes, is completely interchangeable, which makes it easier to repair in case of glass damage, which means that choosing between versions for the sake of image quality, you will not notice any difference.
| Characteristics | Xiaomi Mi 9T | Xiaomi Mi 9T Pro |
|---|---|---|
| Screen diagonal | 6.39 inches | 6.39 inches |
| Type of matrix | AMOLED | AMOLED |
| Permission | 2340×1080 | 2340×1080 |
| Protective glass | Gorilla Glass 5 | Gorilla Glass 5 |
The only thing to look out for when you buy a used device or change your screen is color calibration. In some Pro batches, the factory calibration might be a little warmer or cooler, but technically it's the same component. So if you split the screen on the Pro version, you can safely buy a matrix from the regular version, and vice versa.
Why are the screens the same?
Image settings and calibration in MIUI
After purchasing a 6.39-inch AMOLED smartphone, the user immediately enters the MIUI shell ecosystem, which offers extensive customization options. The default activation of Saturated Colors mode is designed to maximize the matrix's potential, making greenery brighter and blue sky deeper. However, for eyes accustomed to more natural tones, this may seem redundant.
For those who are engaged in photo processing or just prefer a realistic picture, the screen settings menu has a mode "Standard" or "Enhanced". Switch on the way Settings → Screen → Colors and saturation. Here is the famous "puck" adjustment, which allows you to manually shift the white balance in the warm or cold zone, which is especially true for AMOLED panels, which sometimes go greenish at low brightnesses.
⚠️ Note: Paper mode or reading with filtered blue can distort the colors of applications. Use it only to read text, but not to view photos or videos.
Also worth mentioning is the DC Dimming feature, which is often hidden in the Developer Menu or activated through hidden codes, designed to reduce screen flickering at low brightness, which reduces eye fatigue. For AMOLED screens, this is a critical setting, as pulse-width modulation (PWM) at low brightness can cause discomfort for sensitive users.
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To activate DC Dimming, go to Developer's Forward, find the "Flicker Removal" item and turn it on, which will make using your phone in the dark more comfortable for the eyes.
Screen protection: choice of glass and films
Despite the strong glass Gorilla Glass 5, flat screen diagonal of 6.39 inches remains vulnerable to scratches and chips when falling. the main problem in the selection of protection for Xiaomi Mi 9T is its completely frameless. Most protective glasses have a black frame around the perimeter, which on this smartphone can either overlap part of the useful image or not coincide with the curve of the body, creating a rainbow effect at the edges.
The optimal solution for this model is hydrogel films or glass with “Full Glue” technology (full fit over the entire surface). Conventional cheap silicone-based glass is often peeled off at the edges or collect dust under itself due to the lack of a frame that could hide the defects of the sticker. When buying protection, it is important to look for the label “For Xiaomi Mi 9T / Redmi K20” without the cutouts under the speaker on top.
- 🛡️ Hydrogel film: hides small scratches, does not beat, but gives the effect of "orange peel».
- 💎 3D glue-based glass: better shock protection, requires sticker skills.
- 💧 Liquid glass: protects only from micro-scratches, does not save from falling on asphalt.
The process of sticking glass on the frameless requires perfect cleanliness. Any speck of dust under the edge of glass on the Mi 9T will be noticeable immediately due to the lack of black camouflage frames. It is recommended to perform the procedure in the bathroom after a set of hot water to nail the dust, or use a special dust remover if it comes with a kit.
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For bezel-less smartphones like the Mi 9T, the accuracy of the protective glass landing is critical, and cheap versions with an air layer around the edges will be permanently unstuck.