Xiaomi 9T: how many inches of screen and its features

The question of how many inches is the diagonal of the screen Xiaomi 9T, It's one of the most popular users considering buying this legendary smartphone. The answer is simple: the manufacturer has equipped the device. AMOLED-It's a 6.39-inch matrix, and it became the gold standard for mid-range flagships of the period, providing the perfect balance between the compactness of the case and the usable space.

However, the dry 6.39 inch numbers do not convey the full experience of using the gadget. IPS-Xiaomi has been betting on Samsung’s advanced panel, which changes the way content is perceived: The exact diagonal of the visible area is 6.39 inches (162.2 mm) diagonally, without taking into account curvature. This characteristic, combined with the absence of necklines (" bangs"), allowed to create the effect of full immersion, which is still appreciated by enthusiasts of mobile technology.

Understanding the actual dimensions of the display is critical not only to the evaluation of multimedia capabilities, but also to ergonomics. With a body width of only 74.3 mm, the device remains convenient for one-handed control, which is rare in modern “laptop” devices. In the following sections, we will discuss in detail the resolution, pixel density and the impact of 19.5:9 format on everyday use, so you can get a full picture of the visual capabilities of the Mi 9T.

Technical parameters and matrix resolution

After figuring out how many inches the Xiaomi 9T has, you need to delve into the technical specifications that make this screen stand out.The resolution of the matrix is 2340 × 1080 pixels, which in marketing terminology is often called Full HD+. The pixel density reaches 403 ppi (pexels per inch), which provides an incredibly clear picture where individual points are indistinguishable by the human eye at a normal viewing distance.

Using Super Technology AMOLED This means that each pixel is individually illuminated, and this has several key advantages over the other. IPS-The perfect black color (the pixel just turns off), infinite contrast and saturated colors, which means that when you watch a video in the dark, black remains deep, not gray, as it happens in the dark. LCD-screen.

Importantly, it supports HDR10, which allows the smartphone to correctly display content with extended dynamic range, which is especially noticeable when watching videos on streaming platforms like Netflix or YouTube. Color reproduction covers a wide range of DCI-P3, making it suitable even for professional photo retouching on the go.

⚠️ Attention: AMOLED-Do not leave the navigator or game interface on at maximum brightness for several hours in a row to avoid pixel burnout in the long run.

For those concerned about eye health, the Xiaomi Mi 9T has introduced DC Dimming technology, which regulates screen brightness not by flickering (PWM), but by changing the voltage applied to the array, which significantly reduces eye strain when using a smartphone in low light conditions.

Form factor and aspect ratio 19.5:9

The 6.39-inch diagonal in the Xiaomi 9T is implemented in an elongated 19.5:9 format. This aspect ratio has become an industrial trend that allows you to increase the usable screen area without making the smartphone too wide. Visually, the device seems narrower than older phones with a diagonal of 5.5 inches and a ratio of 16:9, which significantly improves ergonomics.

With this geometry, the Mi 9T is easy to put in your hand. It's easier to grab the body with your thumb, and the risk of dropping the gadget when you print with both hands is minimal. The elongated format is also ideal for consuming content: modern movies are made in similar proportions, so when watching movies, black stripes on top and bottom are either absent or minimal.

But there are nuances: Some older apps or games designed to be 16:9 can be blacked out on the sides or stretched to distort proportions. Fortunately, MIUI (and later HyperOS) has settings that force content to be scaled to full screen.

And it's also worth mentioning the safety glass. The front panel is protected by Gorilla Glass 5. Although it's a durable material, it's not indestructible. It's not afraid of scratching keys in its pocket, but falling on asphalt at an unlucky angle can cause cracks, so using a case with raised sides remains relevant.

Comparison with competitors and predecessors

To see how good the Xiaomi 9T screen is, it’s worth comparing it to direct competitors of the same period and its predecessors. At the time of its release, 6.39 inches were considered the optimal size. By comparison, the Samsung Galaxy S10 had a 6.1 inch screen, and the OnePlus 7 had 6.41 inches. Thus, the Mi 9T was right in the middle, offering more space than compact flagships, but remaining fewer giants like the Honor 20 Pro.

Below is a table comparing the main characteristics of displays of popular smartphones of the time:

The table shows that Xiaomi is winning over many of the competitors who used IPS in the matrix type. However, the 60 Hz refresh rate is now considered the standard, whereas modern models have already switched to 90 or 120 Hz. However, for Xiaomi 9T this was the norm, and the optimization of the system makes the interface quite smooth.

⚠️ Note: When buying a used device, be sure to check the screen for "burnout" (residual images of icons or keyboard). AMOLED-screens over time, this is often the case.

The Mi 9T’s main advantage to competitors was not only the diagonal, but also the lack of cutouts. While Samsung and OnePlus were making droplets or holes in the screen, Xiaomi retained solid glass, which visually made the screen larger and more holistic.

The Effect of a Mechanical Selfie Camera on the Screen

One of the unique features that directly impacts the perception of diagonal and image integrity is the mechanical front camera. Since the Xiaomi 9T doesn't have a bang or a hole, the usable screen area is used 100%, which is a rare case where the claimed 6.39 inches are fully operational.

The mechanism of the exit camera does not take up space on the front panel, which allowed engineers to minimize the bezels on all four sides. The top frame is only 2.1 mm, which creates an "edge-to-edge screen" effect. For users who watch a lot of videos or play games with a horizontal orientation, this gives a significant advantage in immersion.

From a software perspective, it automatically responds to the position of the phone, so if you flip your smartphone horizontally and the camera app is running, the module won't come out to avoid disturbing your view, and this demonstrates a high level of hardware and software integration.

The lack of a cutout also solves the problem of randomly pressing the cheek during a conversation, since the top of the screen often remains active. In models with a droplet, this area was sometimes ignored by algorithms, which led to malfunctions in games or video players.

Display settings and calibration

Xiaomi 9T owners have a wide range of options for customizing the image. Settings → Screen has a variety of color rendering profiles. By default, the "saturated" mode is often turned on, which makes the colors very bright, but sometimes unnatural.

For those who prefer a realistic picture, it is recommended to switch to "Standard" or "Saturated" mode (depending on the firmware version), color temperature settings are also available, where you can shift the balance towards warm or cold shades, which allows you to adapt the screen to personal preferences or lighting conditions.

Another important feature is Read Mode, which puts the screen in monochrome mode or adds a warm filter that mimics paper, which reduces the strain on the eyes when reading texts for a long time and saves battery power, since white pixels on AMOLED consume more energy.

And don't forget the Adaptive Brightness function, because the smartphone learns the user's habits and automatically adjusts the brightness depending on the lighting, and if the automation doesn't work properly, you can recalibrate it by manually changing the brightness slider in different lighting conditions.

Energy consumption and frequency of renewal

Diagonal 6.39 inches and AMOLED-The black color on these screens consumes almost no power because the pixels are off, which means that the use of dark themes in the interface and black wallpaper can significantly extend the life of Xiaomi. 9T single-load.

The screen refresh rate is standard 60 Hz. Although the market has already appeared models with 90 and 120 Hz, for the Mi 9T this limitation is compensated by system optimization. The smoothness of animations in MIUI is sufficient for comfortable use, although in fast shooters the difference from 90 Hz can be noticeable for experienced players.

⚠️ Attention: Continuous use of maximum brightness (100%) not only quickly puts the battery down, but also leads to overheating of the case and accelerated degradation of organic compounds in the matrix.

To save charge in the screen settings, it is recommended to turn off "Rise to turn on" and "Dual tap to turn on" if you do not use them. These functions constantly poll the sensors, which consumes battery life.

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Use the Dark Theme feature not only during the day, but also at night. AMOLED-Xiaomi screens 9T It can save you up to 15-20% Battery charge per day with active use.

Frequently Asked Questions (FAQ)

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Xiaomi 9T Offers one of the best screens in its class with a 6.39 diagonal combination", AMOLED-technology and lack of cutouts, which makes it relevant even years after the release.