Compare: Xiaomi S Mini 2025 vs TCL C75B

Xiaomi, well known as a giant in the smartphone market, has decided to fight for the attention of high-end technology enthusiasts by presenting a television with MiniLED backlighting. The S MiniLED 2025 model looks truly impressive on paper. The vast number of dimming zones provides excellent contrast, and the brightness, reaching impressive levels, can impress both in high-quality HDR materials and in older SDR. The television performs excellently where smooth motion is key. The high refresh rate panel and low input lag make it a good choice not only for sports fans but also for gamers. Support for features such as ALLM and GameBar further enhances the gaming experience. Google TV on this television works as it should – quickly, smoothly, without unnecessary stutters, which we could not say about the model A Pro 2025. Additionally, with such an extensive application library, it will satisfy even the most demanding user. However, not everything looks so good in practice. Despite solid hardware specifications, the television has its drawbacks. The biggest problem is the algorithms managing the dimming zones, which can be quite irritating when watching films in the evening. The operation of individual zones is overly noticeable in dynamic scenes, which can effectively distract our attention from the image. Issues also arise in more demanding HDR scenes despite the truly impressive brightness. Small, bright elements often lose brightness, ruining the effect that a top-quality image should provide. The system is also not free from shortcomings – image enhancement features for lower-quality materials work unevenly, and some options in Google TV are poorly translated or even untranslated. The Xiaomi S MiniLED 2025 has huge potential, but in its current form, it seems underutilised. It is clear that Xiaomi wanted to create something truly good, but several significant shortcomings result in a mixed final effect. A device with high aspirations that needs better software to truly shine. It is an ideal television for brighter rooms, where high screen brightness plays a key role, and local dimming issues become less noticeable. It will also perform excellently as a screen for gamers and for those who value the versatility and functionality of the Google TV system.

The mid-range TV segment is expanding rapidly, and the TCL C75B demonstrates that you can get really solid equipment in this price range. This model has been clearly designed with gamers in mind – the HDMI 2.1 port offers ample scope, providing VRR, ALLM, as well as impressive 144 Hz refresh rates in 4K (or 240 Hz in Full HD), which will surely satisfy both gaming and sports fans. Operating the TV is enjoyable and intuitive, mainly thanks to the Google TV system. Although you may encounter slight stutters, the wealth of available applications and features compensates for that – practically everything we need is at our fingertips or even accessible by voice if we wish to converse with the remote in Polish. As for picture quality, the TCL C75B also performs well. Thanks to its VA panel, it boasts quite good contrast, and the presence of Dolby Vision allows for enjoyable HDR effects, even if the brightness isn't groundbreaking. Of course, it is not equipment without flaws – despite the fast panel, there is some motion blur, and the lack of traditional features (like USB recording) may disappoint some users. Nevertheless, in its price category, the C75B is a very attractive option, especially for those looking for a screen designed for high-level gaming.

Xiaomi S MiniLED is one of the most affordable MiniLED technology televisions available on the market. The model we tested, with a size of 55 inches, features as many as 308 local dimming zones, which is impressive for this price. Additionally, it uses a VA panel, which naturally offers significantly better contrast than IPS panels. On static test images, the television performed excellently, achieving an impressive contrast ratio of 182,000:1 in the film Oblivion. The blacks were deep, and the details in the light and dark areas of the image were clearly separated. However, in more demanding scenes where the image is dynamic, the situation becomes complicated.

Where lies the problem? The main cause is the local dimming algorithms. Although their work shows promising results on static images, during film playback – that is, in the natural working conditions of the television – they operate too aggressively. In dynamic scenes, such as those from the tested film, you can see how the individual dimming zones "work and flicker," which detracts from the viewer's sense of image coherence. This effect is particularly noticeable in motion, when bright objects move against a dark screen. As a result, although Xiaomi S MiniLED offers excellent contrast on paper, in practice the effect is less satisfying. The aggressive operation of the algorithms spoils the perception of dynamic scenes, making the television average in this category. It's a good example of how MiniLED technology requires not only good specifications but also proper optimisation.

The TCL C75B television tested by us in size X" is equipped with a VA panel, which naturally provides quite decent contrast results – and this was also observed during our tests. On each test pattern, the television achieved a contrast ratio of around 5500:1. This is a result that can be considered very good in this price range. The black levels on this model perform really well, although of course, they are far from perfect.

Due to the C75B's belonging to the mid-range segment, we do not find local dimming technology here. This is particularly noticeable in more demanding scenes, such as those from the film Sicario 2, where we observed that the black takes on a navy shade instead of a deep black. This limitation of panels without local dimming can be especially visible in evening screenings with the lights off, when the dark elements of the image are more prominent. It is worth remembering this when choosing a television in this category, especially if we care about the best quality of black while watching films at night.

Since the Xiaomi S MiniLED boasts an impressive number of 308 dimming zones, it is time to test how it performs in HDR tests. Starting with luminance, or the ability to display bright scenes, the television achieved nearly 1000 nits of brightness – a result that can be considered outstanding in this class. Do these figures, however, translate to real experiences in film scenes? In the case of less demanding shots, such as those from the film The Meg, the television indeed showed excellent results, reaching up to 900 nits. Such values are impressive and can truly convey the power of HDR effects.

Unfortunately, much like with contrast, it wasn't without issues. When smaller, brighter elements appear on the screen – as in the challenging scenes from Sicario 2 – the aggressive operation of the dimming zones spoils the entire effect. Brightness in these moments drops to just 100 nits. This is definitely too little to capture the full magic of HDR. Instead of a dynamic and detailed image, the viewer receives a muted, almost flat impression, which takes away all the enjoyment from the viewing experience.

In summary, if we are looking for a television with high brightness for watching films during the day, the Xiaomi S MiniLED will easily fulfill that task. However, its inability to precisely manage the dimming zones means that watching films in the evening, especially in demanding HDR scenes, can be more frustrating than satisfying.

During our test, the TCL C75B "spat out" around 380 nits of brightness. We recorded similar results while watching most of the films we tested. They can be considered average – the television does not perform poorly in this segment, but around 400 nits is definitely too low to fully experience the magic of HDR effects. Of course, these results are better than those of budget models, which can achieve almost half the brightness values. However, for HDR enthusiasts seeking stronger lighting effects and greater realism, the C75B may prove insufficient. On the positive side, it's worth mentioning the DCI-P3 colour gamut coverage of 95%. This is a very good result that easily suffices to enjoy a wide range of colours in content available on popular streaming platforms. Vivid and rich colours are definitely a strong point of this model.

Xiaomi, like many manufacturers, offers a wide range of picture modes. On the S MiniLED, we can find both IMAX Enhanced and Filmmaker. Our tests were conducted in Filmmaker mode, which theoretically aims to reflect a reference image, but the reality turned out to be somewhat different.

Let's start with the test of SDR content. Here, the television had quite a few issues, especially with white balance. The clearly visible dominance of red made the image look too warm, with all colours taking on a reddish hue. This was particularly noticeable in a comparative scene from the film Star Wars. The brightness characteristics (gamma) also left much to be desired – instead of a smooth transition, we had a real "rollercoaster," with a visible excessive brightening of the screen.

In 4K content, the situation improved significantly. The white balance, although still not perfect, was much more balanced, with a slight dominance of red and blue, but without excessive impact on the overall perception. The EOTF curve (responsible for brightness in HDR) showed some brightening in the brightest parts of the image, which was noticeable, for example, in the test scene from the film Pan that we described earlier. These brightening effects may disturb the precision of the image, but in 4K, the overall effect was much more acceptable than in SDR.

Although Xiaomi S MiniLED can pleasantly surprise with 4K content, its factory settings in SDR require solid adjustments, especially regarding white balance and brightness. This is definitely a television that would benefit from calibration.

TCL C75B offers several picture modes, but in our opinion, the best choice is the “Film” mode. Although its settings are quite decent, the television struggles with some colour reproduction issues. In our tests, we noticed that the image had a noticeably pinkish tint compared to what could be considered accurate. This effect was particularly evident in skin tones, which appeared unnaturally flushed. The main culprit for this phenomenon turned out to be the white balance, characterised by an excessive amount of blue and red in both HD and 4K HDR materials.

An additional problem was the way brightness was rendered. The gamma, which is responsible for the visibility of details in darker materials, was definitely boosted, causing details in the darkest parts of the screen to be invisible, disappearing into complete blackness (e.g., the lower part of the screen in the comparison photo - around the actress's ear). Similarly, the situation was reflected in the EOTF curve, which was below the correct value, suggesting that we might encounter a similar problem in 4K HDR content.

Thanks to our experience and the right tools, we decided to take matters into our own hands and see how much we could extract from this model after professional calibration. We describe the details in the next section.

Xiaomi S MiniLED 2025 is a television that gains a completely new life after calibration. The results are truly outstanding and show how much potential is in this model.

In SDR mode, the white balance is nearly perfectly aligned. The errors are so minimal that in many cases they can be considered negligible. This is confirmed by the results of the Colour Checker palette, where the errors did not exceed a value of 2 ΔE – this is really a rare result. Gamma also performs very well, although at the beginning of the graph there are slight brightenings in the darkest elements. However, this is a minor exception that does not significantly affect the perception of the image.

In 4K HDR materials, the calibration also brought visible improvements, particularly in the white balance. The image looks natural and cohesive. However, the characteristic of brightness remains a problem. EOTF analysis in film materials shows that the television tends to over-brighten or under-darken the smallest elements on the screen. This is a result of limitations in the dimming algorithms we discussed earlier with HDR and contrast testing. Unfortunately, this is a technical characteristic of this model that cannot be completely eliminated.

Despite this minor flaw, the calibration allowed for maximising the capabilities of this television. The image now looks phenomenal, and its quality impresses in every type of material. Xiaomi S MiniLED 2025 shows that with the right settings, it can compete with more expensive models.

After calibrating the TCL C75B, it has clearly improved in terms of colour reproduction. Although the television does not offer many options for adjusting the white balance, we managed to enhance its settings quite significantly. As a result, the image is no longer excessively pink, and the colours now look much more natural and harmonious.

The gamma jump, which was previously an issue, has not completely disappeared, but we have managed to reduce it considerably. This has made details in dark scenes more visible – both in HD and 4K HDR materials.

Unfortunately, the lack of local dimming is still noticeable. The "blooming black" effect remains, but that is a limitation of the display itself. Nevertheless, the colours after calibration look far better, and the image is much more enjoyable to watch.

The fluidity of tonal transitions in Xiaomi S MiniLED 2025 is impressive. Even in the theoretically most difficult scene with red water, the television performs excellently – we did not notice any major issues. Minor imperfections occur in scenes like The Kingsman or The Martian, where subtle colour blending can be observed. Nevertheless, Xiaomi stands out in this category, offering one of the best qualities of tonal transitions in its price range. This is definitely a strong point of this television.

In terms of the smoothness of tonal transitions, the TCL C75B performs really well. The gradation of the darkest colours is particularly impressive – here the television does not disappoint and presents a high-quality image.

Some imperfections can be seen in the brightest areas of the screen, such as in a scene from the film Kingsman (the sun in the blue sky). Nevertheless, the final effect should satisfy the vast majority of users.

When it comes to tonal transitions in lower quality materials, such as YouTube or television, the Xiaomi S MiniLED is equipped with a feature called "Colour Contour Removal." At the "low" setting, it performs quite well, although its effectiveness can be inconsistent. Sometimes it seems as though the television is struggling to smoothen, which creates a certain dissonance. On the positive side, we did not notice any visible side effects, although due to the instability of this feature, one could suspect that unexpected issues may arise in certain situations.

Image scaling also performs moderately. There is some slight jaggedness, particularly on thin elements like branches, and subtitles can appear slightly jagged. While this may not be very bothersome, a more discerning eye will certainly pick up on these shortcomings. Overall, most users should be satisfied with the quality of scaling and smoothing, but the television will not satisfy those who expect perfection in every frame of the image.

TCL C75B has a tone transition smoothing function, but unfortunately, we cannot commend it. Regardless of the selected level – low or high – tone transitions in older materials remained visible, as if the function wasn't working at all. It's hard to say anything positive about it, as in practice it seems completely useless.

The image scaling is better. The television performs quite decently, although on thinner elements, like branches in the background, you can notice slight jaggedness. However, this is not something that significantly interferes with daily viewing.

Unfortunately, a bigger problem turned out to be overscan, which is cutting off the edges of the image. In our tests, there were instances where news tickers or other elements near the edge of the screen were cut off. This is definitely something to pay attention to, especially if we use the television for watching news programmes or content with text on the screen.

Xiaomi S MiniLED 2025 is equipped with a panel featuring a refresh rate of 4K@120Hz (1080p@240Hz), which provides sufficient smoothness for both watching dynamic sports broadcasts and playing the latest games. This level of refresh rate makes the image appear fluid, even in the most intense scenes. Additionally, the television offers a “Motion Smoothing” feature that allows you to adjust the way the image is displayed in films. You can choose a more frame-like effect, typical of the cinematic experience, or a smoother one, reminiscent of the so-called “theatrical effect.” This way, every user can tailor the settings to their preferences and enjoy smooth images in their favourite content.

The TCL C75B definitely has something to offer gamers. The television is equipped with a panel that can display images with a refresh rate of 144 Hz in 4K, and even 240 Hz in Full HD. These are really impressive results, especially for a model from the entry-level range.

In addition, there are features for improving fluidity and reducing motion blur in films. The "Motion" option allows precise adjustment of the effect on a 10-point scale, which offers great personalisation possibilities - everyone can set the fluidity as they like.

Xiaomi S MiniLED 2025 is a television that has a lot to offer gamers. With two HDMI ports boasting 48 Gbps bandwidth, we can easily connect modern consoles or PCs, utilising their full potential. Additionally, the ALLM feature automatically switches the TV to low-latency mode – something we will appreciate during dynamic games without annoying lags. Regardless of what we connect, it functions smoothly, and the television handles various resolutions exceptionally well. There is also the GameBar, which may not look as impressive as the "bars" from the competition, but makes up for it with practicality. It is a simple settings panel that allows us to quickly change the most important options or check statistics – an ideal solution when time is of the essence.

However, we must admit that operating the television itself – or rather finding the gaming features within it – posed a significant challenge for us. We approached the testing of the Xiaomi S MiniLED 2025 several times to locate all the necessary options. The hidden menu allowed us to discover the "GameBoost" feature, which enables switching the television to 240 Hz mode, activating VRR, and allows for enabling picture in HGIG mode.

In summary, the Xiaomi S MiniLED 2025 is a television that definitely deserves praise in the gaming hardware category. Its rich set of features – 240 Hz mode, VRR, HGIG, and "GameBoost" – provides an exceptional gaming experience. Unfortunately, the intuitiveness of the menu itself leaves much to be desired and may pose a challenge for the average user.

The TCL C75B is undoubtedly a television designed with gamers in mind. It offers nearly everything that even the most demanding console users could need. With the implementation of fully capable HDMI 2.1, the television supports features like ALLM (Automatic Low Latency Mode) and VRR (Variable Refresh Rate) – operating within the full potential of the television, up to 240 Hz in Full HD resolution.

Additionally, the television supports advanced HDR technologies, including Dolby Vision and HGiG, allowing for even better detail reproduction in HDR-optimised games. The C75B is also equipped with a very convenient interface for gamers in the form of Game Bar, where all key parameters such as refresh rate, input lag, and image settings can be checked – all within a single click.

In a nutshell: the C75B is a great choice for gamers, offering a wide range of features that allow users to fully enjoy the capabilities of modern consoles and games.

The input lag of the Xiaomi S MiniLED 2025 is one of its biggest advantages. 8 ms for 120 Hz content and 17 ms for 60 Hz is an absolutely remarkable performance that will satisfy even the most demanding gamers. Furthermore, the Dolby Vision mode in games deserves praise. Unlike many competing models, Xiaomi maintains a low input lag even in this mode, making it an excellent choice for fans of high-quality HDR gaming experiences.

Input lag in the TCL C75B is something that really impresses. At a refresh rate of 144 Hz, the lag is only 9 ms, which makes the TV's response to our actions on the pad or keyboard practically instantaneous. For 60 Hz, the result is 19 ms – while not record-breakingly low, it still falls within the range where delays are practically unnoticeable during gaming. One could say that the difference would not be felt anyway, which makes this TV a good choice even for more demanding gamers.

Xiaomi S MiniLED 2025 is a good choice if we need a television for working with a computer. The fonts are very clear thanks to the support for chroma 4:4:4, making it perfect for office work or browsing documents. It also performs excellently in gaming – high refresh rates, G-SYNC, and low input lag ensure smooth gameplay, which will satisfy most gamers.

TCL C75B is quite a good choice for connecting to a computer. With high refresh rates, low input lag, and support for G-Sync, the television performs excellently in games – both dynamic ones and more demanding titles. The image is smooth, and the response to our actions is quick, which gamers will surely appreciate.

For office work, the television also does well. Text is readable, although on a dark background some imperfections can be noticed – certain fonts look as if there are missing pieces of vertical lines. This may be distracting if we work a lot with documents or text editing. However, if the computer is mainly used for gaming or watching films, the TCL C75B will easily fulfill its role as a monitor. It is a versatile piece of equipment that can handle most applications.

In terms of viewing angles, Xiaomi S MiniLED 2025 does not impress. This is a typical problem with VA panels, which do not perform well without additional coatings that widen viewing angles. The image begins to lose quality when watching the television from the side – colours fade and contrast significantly drops. However, the advantage of VA panels is their considerably better contrast compared to IPS panels, which in turn win in terms of wider viewing angles. This is a classic compromise where one has to choose between better blacks and a more universal image seen from various places in the room.

The viewing angles on the TCL C75B are, unfortunately, very poor. This is a typical compromise with VA panels – better blacks at the cost of side viewing visibility. The image quickly loses quality when viewed from an angle, which is the complete opposite of what IPS panel televisions offer. If we plan to watch the television mainly straight on, this won't be a major issue. However, with a larger number of viewers sitting at different angles, the image quality may disappoint.

Xiaomi S MiniLED 2025 is equipped with a satin finish on the panel, which performs fairly well in reducing reflections. On the screen surface, one can notice light reflections, which can be somewhat distracting in bright rooms. However, the key feature that saves this television in daytime use is its brightness. With a value of 841 cd/m², the screen performs effortlessly even in very sunny interiors. This is more than enough to comfortably watch television, films, or sporting events. Importantly, the television also handles more demanding content, such as winter sports, where the dominant white can pose a significant challenge for other televisions. Here, Xiaomi definitely delivers.

The TCL C75B performs moderately during the day. The satin screen somewhat limits reflections, but it's not an ideal solution. The brightness is also an issue – 350 cd/m² is simply too low for comfortable viewing in a brightly lit room.

In less extreme conditions, such as in a moderately lit room, the television manages well. However, if the sun beams directly onto the screen in summer, watching may become tiring. It's worth keeping this in mind when choosing this model.

Xiaomi S MiniLED 2025 is a television that stands out thanks to the Google TV system. It offers access to the most popular streaming services, music apps, and various useful features that significantly enhance the everyday experience of using the television. For those who enjoy personalisation, the system also provides plenty of configuration options.

The built-in voice assistant operates smoothly – we can not only control the television but also ask about the weather forecast or set a reminder for the next day. Unfortunately, we noticed during testing that some features have difficulty translating into Polish, which can be frustrating, especially for those less adept at navigating the settings. Despite this, the overall impression is very good, and minor shortcomings can be corrected in future updates.

The device manages connectivity well. Wireless connections to Windows computers or Apple devices proceed smoothly, and thanks to Bluetooth, we can easily connect headphones, keyboards, or other accessories. The remote control is simple and convenient – it works from any position, so aiming at the screen is not necessary. However, there are some shortcomings. If someone frequently uses traditional television, they may feel the lack of recording features from tuners or the PiP (picture in picture) option. This somewhat limits capabilities, but for those focusing on streaming and modern functionalities, it shouldn't be a significant issue.

Xiaomi makes up for these shortcomings with an excellent operating system. Google TV is one of the most advanced and user-friendly systems available on the market, which makes the television perform really well in everyday use.

TCL C75B is a television that is primarily based on the Google TV system. The platform offers access to most popular applications, such as Netflix, YouTube, and Prime Video, which makes it great for watching content from the internet. However, it should be mentioned that the system can sometimes be slightly laggy, which may be noticeable during everyday use.

In terms of smart features, the C75B performs well. Voice control with the help of the built-in assistant works efficiently, and thanks to AirPlay and Miracast, it is easy to stream content from your phone or laptop. Bluetooth allows you to connect headphones, controllers, or other devices without any major issues.

However, if someone is counting on traditional television features, they may be disappointed. There is no option to record programmes onto a USB drive, nor is there a picture-in-picture (PiP) feature. TCL has been omitting such features for some time, which may not appeal to users who primarily use traditional television.

The basic file player in Xiaomi S MiniLED 2025 does its job for simple video materials. However, a noticeable drawback is the lack of support for Polish characters, which can be problematic for those using subtitles.

Fortunately, the presence of the Google TV system allows for an easy workaround of this limitation. Thanks to it, alternative file playback applications can be installed, which handle Polish characters and offer much more extensive options. As a result, the limitations of the built-in player are not as burdensome as one might think.

The built-in media player in the TCL C75B works really well. It handles most popular photo and audio formats without any issues. Although there are some shortcomings in supporting certain formats, thanks to Google TV, you can easily install an alternative player that will resolve this issue.

Xiaomi S MiniLED 2025 plays really nicely and even offers a light bass, reminiscent of the sound known from the lower model, namely A Pro 2025. The sound is well balanced, making watching films or listening to music comfortable, even without additional audio equipment. Interestingly, the television effortlessly supports audio formats such as Dolby Atmos and the less common DTS:X. This means you can connect a home cinema system or soundbar and enjoy spatial sound without any difficulties. A nice addition is also the presence of a standard speaker jack.

The sound on the TCL C75B is really pleasant, especially at lower volume levels. The bass is noticeable and enhances the sound nicely, but only up to about 40% volume. At higher settings, problems start to arise – the bass causes unpleasant vibrations, and the speakers begin to crackle. If we plan to frequently use higher volume levels, it is worth considering purchasing a soundbar, as the built-in speakers may not cope with more demanding situations.

Xiaomi S Mini 2025 vs TCL C75B

Advantages

Disadvantages

Our verdict

TV appearance

Where to buy

Contrast and black detail

HDR effect quality

Factory color reproduction

Color reproduction after calibration

Smoothness of tonal transitions

Image scaling and smoothness of tonal transitions

Blur and motion smoothness

Console compatibility and gaming features

Input lag

Compatibility with PC

Viewing angles

TV efficiency during daytime

Details about the matrix

TV features

Playing files from USB

Apps

Sound