TCL C855 vs Xiaomi S Mini 2025

Direct compare

C855 / C85

Available screen sizes: 65”75”85”98”

Available screen sizes: 55”65”75”

Panel type: LCD VA

Resolution: 3840x2160

System: Google TV

Model year: 2024

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Panel type: LCD VA

Resolution: 3840x2160

System: Google TV

Model year: 2024

Complete the survey to find out the result

Overall rating

7.6

7.2

  • Movies and series in UHD quality

    7.4

    6.4

  • Classic TV, YouTube

    7.1

    6.6

  • Sports broadcasts (TV and apps)

    6.7

    6.5

  • Gaming on console

    8.8

    8.4

  • TV as a computer monitor

    8.6

    8.2

  • Watching in bright light

    7.4

    7.3

  • Utility functions

    7.1

    6.7

  • Apps

    10.0

    10.0

  • Sound quality

    7.2

    6.8

Advantages

  • Very large number of built-in applications

  • High contrast and deep blacks

  • Very good HDR effect in bright scenes

  • Very high brightness - excellent television for bright rooms

  • Image quality comparable to much more expensive televisions

  • VA matrix with MiniLED backlighting – good contrast and deep blacks

  • High brightness (841 cd/m²) – excellent visibility even in bright rooms

  • Supports multiple HDR formats: Dolby Vision, HDR10+

  • High refresh rate: 240Hz, 144Hz, and 120Hz

  • Low input lag – perfect for gaming

  • Google TV system – versatile and comprehensive with broad access to apps

  • The remote does not require pointing at the screen

  • Pleasant sound with mild bass

  • Supports audio formats: Dolby Atmos and DTS:X

Disadvantages

No like
  • Poor viewing angles

  • Poor colour reproduction out of the box (can be improved with calibration)

  • Errors in the translation of the TV Menu

  • Problems with aggressive dimming algorithms – visible in dynamic scenes

  • Image scaling and tonal transition enhancement features are unstable

Our verdict

Once again, the manufacturer demonstrates that although it is a relatively young player in Poland (but not worldwide) in the RTV market, it certainly cannot be said that it is a second-tier choice. The television TCL C855 is an incredibly versatile device that performs well in various applications and excels in its price class. Thanks to the Mini LED backlighting, the results of contrast and blacks are very solid, allowing for a deep and vivid image. It is worth noting that the television's algorithm effectively manages to maintain black uniformity, and blooming effect is rarely noticeable. This backlighting is also a strong point of the television in HDR materials, although with some caveats. TCL C855 can achieve a brightness of up to 1800 nits, which is an impressive result; however, brightness can drastically drop to around 200 nits when a bright but small element appears on the screen. Another drawback is the boost in mid-tones, which can lead to a loss of contrast and a decrease in image fidelity with the director's vision. The television also performs excellently when connected to a console or powerful PC. In this category, TCL C855 truly showcases its power, offering incredibly low latency and high-quality gameplay, made possible by the full implementation of HDMI 2.1 features. The Google TV operating system is another advantage, providing users with nearly unlimited installation options for applications, even those from outside the official store, thanks to support for APK files.

In summary, TCL C855 is the ideal choice for those who know what they expect from a television. It is a good, versatile piece of equipment that, although not perfect, offers excellent picture quality, low gaming latency, and a flexible and robust operating system.

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.

TV appearance

HDMI inputs
2 x HDMI 2.0, 2 x HDMI 2.1 (48Gbps)
1 x HDMI 2.0, 2 x HDMI 2.1 (48Gbps)
Other inputs
RCA (Chinch)
Outputs
Toslink (Optical audio), eARC (HDMI), ARC (HDMI)
Toslink (Optical audio), eARC (HDMI), ARC (HDMI), Mini-Jack (Headphones)
Network Interfaces
Wi-Fi 2.4GHz, Wi-Fi 5GHz, Ethernet (LAN) 100Mbps
Wi-Fi 2.4GHz, Wi-Fi 5GHz, Ethernet (LAN) 100Mbps
Xiaomi S Mini 2025 Led Remote

Where to buy

No links

No links

Contrast and black detail

8.6/10

6.8/10

Local dimming function: Yes, number of zones: 1344 (48 x 28)

Local dimming function: Yes, number of zones: 308 (22 x 14)

Contrast:

Review TCL C855 Contrast and black detail

Result

:1

Review TCL C855 Contrast and black detail

Result

176,000:1

Review TCL C855 Contrast and black detail

Result

54,000:1

Review TCL C855 Contrast and black detail

Result

30,500:1

Review TCL C855 Contrast and black detail

Result

13,700:1

Review Xiaomi S Mini 2025 Contrast and black detail

Result

182,000:1

Review Xiaomi S Mini 2025 Contrast and black detail

Result

38,050:1

Review Xiaomi S Mini 2025 Contrast and black detail

Result

18,300:1

Review Xiaomi S Mini 2025 Contrast and black detail

Result

10,150:1

Review Xiaomi S Mini 2025 Contrast and black detail

Result

5,450:1

Halo effect and black detail visibility:

TCL C855 uses a high-contrast VA panel. The ANSI contrast (without dimming) was a very decent 5238:1, which allows for at least very good black levels. Additionally, the panel itself is equipped with multi-zone Mini LED backlighting, which is divided into 1344 independent dimming zones for the 65-inch model. Such a number allows for very good results in our tests. It is worth noting that TCL, as one of the few manufacturers, offers such a specification without spending excessively large amounts of money, unlike the classic quartet of manufacturers. As you can see, in the vast majority of scenes we prepared, the results are impressive, particularly in the first three, as even in the third one, with a score of 54,000:1, it cannot be said that the black levels and contrast are weak, as they are more than satisfactory. These deteriorate in two scenarios: scenes with film stripes and when there are many elements surrounded by black on the screen. And while the last of the test scenes still has excellent contrast, the final tested scenario shows some blooming in the blacks. The frame from the film "Oblivion" performed exceptionally well on the TCL C855, with the level of black comparable to OLED screens, which is quite an achievement. It is also worth noting the good separation of lights, which is not easy to achieve. Our flagship scene from "Sicario 2" performed equally well in terms of contrast, but it is clear that details in the blacks on the first, second, and third planes tend to disappear. The operation of the backlight control algorithm also deserves praise, which minimizes the halo/blooming effect to an absolute minimum. However, it is worth noting that very small elements, such as stars, the TCL C855 can sometimes completely dim.

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.

HDR effect quality

6.5/10

4.8/10

Supported formats
HDR10, HDR10+, Dolby Vision, Dolby Vision IQ, HLG
HDR10, HDR10+, Dolby Vision, Dolby Vision IQ, HLG
Color gamut coverage
DCI P3: 97.0%, Bt.2020: 79.0%
DCI P3: 93.0%, Bt.2020: 72.0%

Luminance measurements in HDR:

Review TCL C855 Brightness measurement

Result

1472 nit

Review TCL C855 Brightness measurement

Result

445 nit

Review TCL C855 Brightness measurement

Result

754 nit

Review TCL C855 Brightness measurement

Result

237 nit

Review TCL C855 Brightness measurement

Result

1820 nit

Review Xiaomi S Mini 2025 Brightness measurement

Result

852 nit

Review Xiaomi S Mini 2025 Brightness measurement

Result

140 nit

Review Xiaomi S Mini 2025 Brightness measurement

Result

385 nit

Review Xiaomi S Mini 2025 Brightness measurement

Result

97 nit

Review Xiaomi S Mini 2025 Brightness measurement

Result

1126 nit

Scene from the movie “Pan” (about 2800 nits)

Scene from the movie “Billy Lynn” (about 1100 nits)

Static HDR10

Dynamic: Dolby Vision

Dynamic: Dolby Vision

HDR luminance chart:

Xiaomi S Mini 2025

TCL C855

TCL C855 delivers a highly varied HDR effect. On one hand, the television truly shines, while on the other, it resembles a lower model with FALD backlighting. This situation is, however, regularly observed in this brand, so it was not a surprise to us. The first and last scenes, featuring large elements of light, look almost phenomenal, "shining" with brightness levels of 1470 and 1820 nits respectively. Such effects will certainly cause more than one person to squint, while simultaneously feeling the extraordinary dynamism of the scene itself. You can truly feel as if you are inside the film. The situation changes dramatically when small or minor elements with high luminance surrounded by black appear on the screen. The TCL C855, in order to avoid the halo effect, significantly reduces brightness to a level of even 240 nits, which is a disappointing result, causing the film to not appear as if it was recorded in HDR. The HDR effect in the TCL C855 makes watching dynamic scenes more engaging, allowing the viewer to feel as though they are part of the action. Even with smaller elements of high luminance, the television manages to maintain details without excessive dimming. Moreover, the TCL C855 test shows that the brightness of the image is adjusted for scenes with a large amount of detail, which enhances viewing comfort.

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.

Factory color reproduction

5.2/10

3.9/10

Factory Mode

After calibration

Factory Mode

After calibration

The best factory mode for the TCL C855 is "Film," and it is on this mode that we conducted all our tests. Like any mode predefined by the manufacturer, it had its drawbacks that are worth correcting to achieve an image as close as possible to what the film producer intended. We will examine the colour characteristics in both SDR and HDR materials. Looking at the first, we see a noticeable dominance of green in the white balance, which, as you might imagine, resulted in an unpleasant greenish tint across the entire image. Observing the very important gamma chart, which is responsible for the image's contrast, we see a significant deviation from the reference line marked at 2.4. From the left, we can observe a strong spike in the measured value, which at this point caused the image to be overly contrasted, merging details into a dark blob. This situation persisted for quite some time, up to 20% of the chart's value, before then dipping below the reference. This, in turn, meant a brightening of the image and a significant drop in contrast. The factory mode performed slightly better in HDR materials, as the white balance looked quite good, except for the second half, where green once again took precedence. Looking at the EOTF curve, which, unlike gamma, shows the rate of brightness increase, we see primarily two errors: the darkest scenes were too dark, and the brightest ones were overexposed. This was something we could also observe in the scene from the film "Pan" in the paragraph checking the TV's HDR.

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.

Color reproduction after calibration

6.9/10

8.4/10

TCL, like the vast majority of manufacturers, provides advanced calibration tools in its televisions. Here we find 2- and 20-point adjustments for greyscale as well as an advanced colour management system. The results, as you can see, are very good, and in SDR materials we have significantly approached the reference image. We eliminated both the green tint and the gamma issue, although there is still a slight "kink" at the very beginning. The performance with HDR materials was somewhat poorer, as the TCL C855 did not allow us to model them adequately. We were only able to slightly adjust the EOTF curve and significantly improve the colours themselves.

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.

Smoothness of tonal transitions

9.2/10

8/10

Nevertheless, an important aspect in assessing image quality is tonal transitions. To obtain a clear image free from posterisation effects, the television must demonstrate very good algorithms for smoothing out colour gradations. We must admit that the one used in TCL C855, named "Gradual Smoothing," is among the best we have had the opportunity to test. Practically every scene performs very well here and there is nothing to criticise. The best example of this is the scene from "The Green Knight," which is the most demanding due to the vast amount of fine and subtle transitions in the mist. The C855 effectively smooths out everything contained in the scene and allows the full suspense to be felt. The only moment where a slight posterisation can be observed is in a shot from the film "The Green Knight," where the reds in the upper left section of the screen stand out from each other.

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.

Image scaling and smoothness of tonal transitions

5.5/10

6.7/10

Image without overscan on the SD signal
OK
OK
Smooth transition function
No
OK

Smooth transition function

Image without overscan on the SD signal

Once again, we will take a look at the function of smoothing tonal transitions, but this time also at image scaling. The latter is particularly important when watching lower-quality materials, such as certain television programmes or older films. We will focus on the function responsible for tonal transitions. Interestingly, just like in the scenes of the previous test, it performed excellently and smoothed out practically all the inconsistencies; however, here it had problems. Using the menu responsible for this function, we found that no setting - even the strongest - was of any help.

Image scaling in TCL C855 is described as one of the best we have had the opportunity to test so far. The image is sharp, but in a way that could be described as natural for our eyes. Even the small, fine branches do not have jagged edges, and there is no white halo around figures, which is characteristic of inferior scaling systems.

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.

Blur and motion smoothness

8/10

7/10

Maximum refresh rate of the panel
144Hz
240Hz
Film motion smoothing option
OK
OK
Blur reduction option
OK
OK
BFI function 60Hz
Yes, 60Hz (image flickers)
Nie
BFI function 120Hz
Yes, 120Hz
Nie
Brightness drop with BFI
51%
-%

Blur (native resolution, maximum refresh rate):

Blur (BFI function enabled):

The maximum refresh rate we can set on the TCL C855 is 144 Hz. Naturally, this is only possible by connecting the TCL C855 television to a very powerful PC. Otherwise, we will be operating at a maximum refresh rate of 120 Hz, which is recommended if we primarily want to watch sports or content with a lot of motion dynamics. For those requiring high image fluidity, the manufacturer has implemented a multi-stage motion smoother. This has been divided into two separate sliders regulating the sharpness of moving images (Motion Blur Reduction) and flicker (Flicker Reduction). Both sliders can be set in the range from 0 to 10, with each increment affecting the level of smoothing, so everyone can find their sweet spot. We present a setting that allows for slight smoothing without the soap opera effect.

The panel of the TCL C855 features a very good response time. This is particularly important as VA panels often have issues with so-called ghosting, which is the effect where a black halo can be seen behind a fast-moving object.

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.

Console compatibility and gaming features

9.8/10

9.8/10

  • ALLM
    Yes
    Yes
  • VRR
    Yes
    Yes
  • VRR range
    48 - 144Hz
    48 - 144Hz
  • Dolby Vision Game Mode
    Yes
    Yes
  • Correct implementation of HGIG
    Yes
    Yes
  • 1080p@120Hz
    Yes
    Yes
  • 1440p@120Hz
    Yes
    Yes
  • 4K@120Hz
    Yes
    Yes
  • Game bar
    Yes
    Yes

The TCL C855 television is equipped with full HDMI 2.1 connectors with a full bandwidth of 48 Gb/s. During our tests, we confirmed the seamless operation of all functions that are part of this standard. As can be seen, all checkboxes light up green, which will certainly be appreciated by gamers, both console and those using the television as a monitor for their computer. Additionally, the TCL C855 supports both AMD FreeSync and NVIDIA's G-Sync, which can be easily activated in the graphics card settings. Those with a very powerful setup can send a 144 Hz signal to the C855, which this television handles effortlessly. It is also worth mentioning the implementation of the HGIG mode, which, however, due to the flaw of the “Game” mode, is overly brightened, making it difficult to configure properly on screen. Fortunately, the television performs excellently with the Dolby Vision format.

The TCL C855 is one of the first manufacturers to equip its televisions with a special GameBar, which allows for extensive setting changes on the fly, without the need to exit the game. It features functions such as an additional crosshair grid, black level correction, and settings for people with disabilities. In the picture, we can see the next generation of this solution.

In summary, the TCL C855 television will be an ideal solution for those seeking a screen for all sorts of electronic gaming. Thanks to all the features supporting such entertainment, it is incredibly engaging. It is also important to highlight the very low input lag, regardless of the selected settings, including with the HDR Dolby Vision format.

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.

Input lag

9.8/10

9.8/10

SDR

1080p60
16 ms
17 ms
1080p120
7 ms
8 ms
2160p60
16 ms
17 ms
2160p120
7 ms
8 ms

HDR

2160p60
16 ms
17 ms
2160p120
7 ms
8 ms
4320p60

Dolby Vision

2160p60 DV
17 ms
17 ms
2160p120 DV
9 ms
9 ms

The delay times of the TCL C855 are remarkably low in every scenario. Even the most avid gamers will surely appreciate the very low input lag of just 7 ms at demanding 4K 120 Hz settings with HDR. Furthermore, the delays at these same settings, but with Dolby Vision HDR enabled, remain at the same level, which is not so obvious in the case of competing models. Consequently, the TCL C855 deserves the highest rating and recommendation.

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.

Compatibility with PC

8.6/10

8.2/10

Chroma 444 (maximum resolution and refresh rate)
Yes
Yes
Font clarity
Good
Good
Readability of dark text and shapes
Good
Good
Input lag in PC mode (4K, maximum refresh rate)
16ms
8ms
Matrix subpixel arrangement
BGR
BGR
Max refresh rate
144Hz
240Hz
G-Sync
Yes
Yes

TCL C855 when connected to a computer as a monitor performs very well. This is due to the very low latency between the mouse, eye, and screen, as well as excellent font clarity, which results from the correct implementation of chroma 4:4:4 at all resolutions, including 4K@144Hz. The subpixel layout is BGR, which does not negatively impact usage in Windows. However, the situation may change when using macOS or other software that cannot adapt fonts to this subpixel layout. Additionally, the television has minor issues with displaying fonts on a black background, which is why we deducted some points.

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.

Viewing angles

3.5/10

3/10

Brightness drop at an angle of 45 degrees
73%
74%

A widely known drawback of VA matrixes without an angular coating is their poor performance in terms of viewing angles. The same is true for TCL C855, where even a slight shift off-axis leads to significant image washout and colour degradation.

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.

TV efficiency during daytime

7.4/10

7.3/10

Matrix coating
Glare
Satin
Reflection suppression
Average
Average
Black levels during daytime
Good
Good

Matrix brightness

Average luminance SDR

Xiaomi S Mini 2025: 841 cd/m2

TCL C855: 910 cd/m2

The glossy finish of the panel in TCL C855 did not allow for the highest rating in terms of the television's performance during daytime viewing, although it is precisely because of this that the blacks during the day are very good. Thanks to the high brightness in SDR content, the actress's face stands out strongly against reflections. A downside of the panel, however, is that light falling directly on the television "spills" further rather than being contained in one place. Generally speaking, if sun rays do not hit the panel, TCL C855 will be a very good choice for brightly lit rooms.

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.

Details about the matrix

Backlight Type
Mini-LED QLED
Mini-LED PFS LED
Software version during testing
TV+:TVM6.0.1_926b00935_240329
UKM3.240326.001.490
Image processor
mt5896
MT5896 2,5GB RAM

Subpixel Structure:

Panel uniformity:

TV features

7.1/10

6.7/10

  • System
    Google TV
    Google TV
  • TV reception
    DVB-T, DVB-T2, DVB-S, DVB-S2, DVB-C
    DVB-T, DVB-T2, DVB-S, DVB-S2, DVB-C
  • Recording to USB (terrestrial TV)
    No
    No
  • Recording programming
    No
    No
  • Picture in Picture (PiP)
    No
    No
  • Screen mirroring (Windows Miracast)
    Yes
    Yes
  • AirPlay
    Yes
    Yes
  • Voice search in native language
    Yes
    Yes
  • Ability to connect a keyboard and mouse
    Yes
    Yes
  • Possibility to connect Bluetooth headphones to the TV
    Yes
    Yes
  • Possibility to simultaneously use Bluetooth headphones and the TV speaker
    Yes
    No
  • Audio only mode
    No
    No
  • RF remote control (no need to aim at the screen)
    RF
    RF
  • Backlit remote control
    No
    No
  • Teletext
    Yes
    Yes

TCL C855 operates on the Google TV system, which is a significant advantage compared to televisions equipped with proprietary systems from manufacturers, where installing applications from a USB drive may be difficult or often downright impossible. Thanks to Google TV, we have the ability to install practically any application, both from the official store and directly from internet repositories via APK files.

This system also offers many conveniences in terms of control. We can connect a keyboard with a touchpad, which greatly facilitates inputting queries. Additionally, thanks to integration with Google, we can use voice control functions with the remote, which works very well, although there are occasional minor issues with the translation of functions and options. It is worth adding that Google TV regularly receives updates that improve functionality and introduce new options. We can also confirm that according to reports from users of older models, the software can have its bad days, and sometimes it experiences a "bad day".

In summary: Google TV is currently one of the most popular systems on the market. Thanks to an efficient CPU, it operates very smoothly, does not freeze, and does not have issues with lagging for a significant part of its usage. This is definitely the best option for those who want to make the most of the capabilities of the TCL C855 television and value the openness of the system.

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.

Playing files from USB

9.2/10

7.3/10

Supported photo formats:

JPEG
Yes
Yes
HEIC
No
No
PNG
Yes
Yes
GIF
Yes
Yes
WebP
Yes
No
TIFF
No
No
BMP
Yes
Yes
SVG
No
No

Maximum photo resolution:

4 Mpix
Yes
Yes
6 Mpix
Yes
Yes
8 Mpix
Yes
Yes
10 Mpix
Yes
Yes
12 Mpix
Yes
Yes
16 Mpix
Yes
Yes
20 Mpix
Yes
Yes
24 Mpix
Yes
Yes
28 Mpix
Yes
Yes
32 Mpix
Yes
Yes

The default media player on the TCL C855 performs very well with practically all the content we have prepared for it. Virtually every video format is supported. However, a notable deficiency may be the lack of a feature to change the font colour. There are hardly any issues with photos and their maximum resolution. It is worth noting negatively the absence of support for Apple's HEIC and SVG files. On the other hand, audio files can be played without any problems, and we do not believe that a large portion of you uses AIFF or DSD64. However, an undeniable advantage of the C855 and its operating system is that we can download another player from the app store at any time, which will play everything.

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.

Apps

10/10

10/10

OK
Disney_Plus
OK
Amazon_Prime_Video
OK
Viaplay
OK
Player_TVN
OK
Polsat_Box_Go
OK
Canal_Plus_Online
OK
TVP_VOD
OK
Apple_TV_Plus
OK
SkyShowtime
OK
Rakuten
OK
CDA_Premium_Browser
OK
Spotify
OK
Tidal
OK
Netflix
OK
YouTube
OK
MAX
OK
Kodi
OK
Disney_Plus
OK
Amazon_Prime_Video
OK
Viaplay
OK
Player_TVN
OK
Polsat_Box_Go
OK
Canal_Plus_Online
OK
TVP_VOD
OK
Apple_TV_Plus
OK
SkyShowtime
OK
Rakuten
OK
CDA_Premium_Browser
OK
Spotify
OK
Tidal
OK
Netflix
OK
YouTube
OK
MAX
OK
Kodi

Sound

7.2/10

6.8/10

  • Subjective sound quality:
    7.2/10
    6.8/10
  • Dolby Digital Plus 7.1:
    Yes
    Yes
  • Dolby True HD 7.1:
    No
    No
  • Dolby Atmos in Dolby Digital Plus (JOC):
    Yes
    Yes
  • Dolby Atmos in Dolby True HD:
    No
    No
  • DTS:X in DTS-HD MA:
    Yes
    Yes
  • DTS-HD Master Audio:
    Yes
    Yes

When evaluating the sound on the TCL C855, we pay attention to several key aspects, such as whether the tones are clearly audible and do not clash with one another, as well as whether none of them dominates the others. In the case of the TCL C855, the sound is positively presented – it is balanced and does not evoke any negative feelings. Generally, the sound is simply good.

For those with a home cinema system, the TCL C855 offers a wide range of audio codecs, including the two most important: DTS-HD Master Audio and Dolby Atmos. This ensures high audio quality that will satisfy users seeking better audio experiences.

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.