TCL C7K / QM7K 55"-85" vs Haier Q80FUX

In terms of brightness, the models from 55 to 85 inches in the C7K series are truly impressive. In the best testing conditions, the 65-inch screen achieved over 1200 nits, which practically means that the brightest scenes can dazzle with almost cinematic brilliance. These are not just dry numbers from measurements – during screenings, white skies, explosions, or light reflections on water looked incredibly striking, often giving the impression that the television exceeds its price class. This is particularly effective in scenes with a large area of illumination, where the screen is filled with intense brightness – such as in sun-drenched shots or during dynamic action sequences. Viewers looking for strong HDR will definitely be satisfied.

However, scenes requiring precise control of backlighting – with small points of light on a dark background – are more challenging. Here the C7K, despite having over a thousand zones, can still dim brightness to maintain deep blacks. The effect is that in films like Sicario 2 or Life of Pi, some details, such as a distant lantern or single reflections, can be less defined or blend in with the surroundings. This is a compromise inherent to MiniLED technology – it provides excellent image depth and blacks at a level that ordinary LCDs do not offer, but this comes at the cost of limited visibility of the smallest lights.

Alright, let's move on to the topic that generates so much discussion, namely the capabilities of the TV in HDR mode. Let's make it clear right away: the Haier Q80FUX is certainly not a brightness demon. The panel of this receiver can generate about 350 nits at peak, which in today’s reality is an absolute minimum to even talk about the presence of extended HDR tonal dynamic range. On the plus side, this power is at least stable – regardless of the test pattern or movie scene we used, the measurements invariably oscillated around 300-350 nits. These are therefore at best adequate results, definitely far from the stunning showcase of capabilities that we know from more expensive models. Fortunately, there is one aspect in which the Q80FUX makes up for these shortcomings and does so abundantly. After all, we are talking about a QLED TV (or more precisely, PFS LED), which means that thanks to the quantum dot filter applied to the matrix, it can generate really juicy, vibrant colors. These are not empty promises – a DCI-P3 color gamut coverage reaching nearly 95% is an impressive result that directly translates into very pleasant, saturated colors for the eye.

The novelty in TCL televisions for 2025 is the long-awaited Filmmaker mode, which until now could be found in most competitive brands. This is great news because this mode is considered the most faithful to the original vision of the creators and is often recommended by enthusiasts of good picture quality. Unfortunately – as is often the case – the mere presence of this mode does not guarantee perfection. The Filmmaker mode in the TCL C7K is not free from flaws. One could point out the incorrect white balance, particularly the slight dominance of blue, which led to cool, somewhat grayish skin tones. But that was not the biggest problem. The main complaint was excessive brightness exposure, which is clearly visible in the gamma and EOTF charts. The image was simply too bright, at times almost blown out, which affected not only the depth of scenes but also the overall viewing experience. Some details were simply lost, and the whole image looked as if someone had slightly overdone the brightness slider. As always – we decided to see what could be squeezed out of this after calibration. And that’s when things started to get really interesting…

Factory settings for film mode are rarely perfect, but in the case of the Q80FUX, we encountered a noticeable imbalance. In SDR content, the image was definitely too warm, which resulted from an excessive amount of red in the white balance, giving it a slightly sepia tone. Contrarily, in HDR materials, the television fell into the other extreme—the excess of blue created an unnatural, cold effect. However, it wasn’t the whimsical white balance that was the biggest problem with this TV. The real culprit, responsible for the previously described issues, was hidden deeper. It turned out that the Q80FUX had completely misaligned gamma values and, crucially for HDR, a poorly managed EOTF curve. It was these erroneous factory settings that caused notorious clipping of the brightest parts of the image, applying that characteristic milky filter over them. Thus, we found the source of the problem. This state of affairs led to overall, significant color errors that were easy to catch even for an untrained eye. Like every television we tested, we decided to calibrate this model as well, and you can find the results of those adjustments in the next paragraph.

After calibration, the TCL C7K showed itself in a really good light, especially when it comes to SDR content. We managed to tune the white balance, color gamut, and brightness characteristics so precisely that color errors on the ColorChecker palette dropped below a value of 2. For the uninitiated – this is almost a perfect result, which means that the image is very close to what the creators intended. Unfortunately, it looked worse with 4K HDR content. Although we were able to slightly calm the white balance and correct its previous errors, it is still evident that the television has some "MiniLED traits," especially in brightness management. When we checked how the C7K handles the EOTF curve on actual film scenes, and not just on synthetic test patterns, it turned out that the screen still tends to slightly brighten the entire image. This affects the overall experience – black loses some depth, and the image becomes less contrastive than it should be. Despite these minor shortcomings in HDR content, the overall reception of materials – especially in SDR – is really very good. After calibration, the C7K can display an image that can successfully compete with much more expensive models. Good color tuning, natural skin tones, and pleasant brightness make movie sessions and everyday content viewing more than satisfactory.

The results of our calibration efforts must, unfortunately, be considered twofold. Overall, the image is indisputably better than before the corrections, but the biggest winner of this process turned out to be SDR content. It is here, after clarifying the gamma and white balance graphs, that we obtained results that can confidently be called very good. After the setup, the Q80FUX truly shines in standard dynamics, showing only slight errors in the most challenging skin tone reproductions. Unfortunately, the weakest link still remains HDR content. And here lies the paradox: even though we managed to calibrate the white balance almost to perfection, the overall color errors still remain at a fairly high level. The reason is that the television still interprets the static HDR10 metadata "in its own way," stubbornly enforcing that unfortunate washed-out image effect, which inevitably leads to significant distortions. Although we successfully eliminated the factory excess of blue color, due to this electronic interference, the screen can still tend to fall into somewhat too cold tones. This television just has it this way.

TCL C7K features a function that, according to the manufacturer, is supposed to smooth out unwanted color transitions – something like a rescue for less successful tonal changes. It's called "Gradual Smoothing" and... well, it sounds ambitious, but in practice, it works very poorly. Regardless of whether we set it to low or high, the difference is minimal. Worse still – the function can cut out elements from the image that should remain. Fortunately, film grain remains untouched, so at least it doesn't smooth everything indiscriminately, but still – it's better to just turn this option off.

When it comes to scaling lower-resolution content, it's already better. SD and HD materials look quite decent, although sometimes we felt that the image loses sharpness and becomes too soft – as if something took away its clarity. Fortunately, with very low sources (e.g., 576p), there was no overscan effect, meaning the image was not artificially cropped – everything fit on the screen as it should.

If there is one area where Haier clearly shows that it has quite a bit to catch up on compared to the market leaders, it is digital image processing. The upscaling, well... is just okay. And that's about all that can be said about it. It does what it is supposed to do: it ensures that lower resolution signals don't scare you with harsh pixelation on the screen and don't look like an overly enlarged postage stamp. However, it is far from the finesse and "intelligent" sharpening that more experienced players in this market have developed over the years. The biggest drawback of the Q80FUX software, however, is the almost complete lack of additional "cleaning" and smoothing functions for the image. The receiver does not offer any noise reduction or gradient enhancement mechanisms. This means that with older or more heavily compressed materials, we simply have to accept that any imperfections in tonal transitions or color blending, which we mentioned earlier, will constantly accompany us during the viewing.

The TCL C7K handles motion fluency really well. The panel used in it offers a refresh rate of 144 Hz, which in itself suggests that this TV is something more than just an ordinary "60 Hz" panel. Moreover, if we connect the C7K to a computer and set the resolution to Full HD. But we'll write more about that in the paragraph about gamers and PC collaboration. Back to everyday use – both sports and movies look very good here. Thanks to the fast panel and well-functioning motion smoother, the C7K is great for watching matches, but also for movie screenings. In the menu, we find two sliders – blur reduction and flicker reduction – which allow you to tailor the smoothness effect to your own preferences. At lower settings, we get a more cinematic effect, with a slight stutter in motion. At higher settings – the image becomes more theatrical, smooth to the point of exaggeration. Everyone can set it up according to their liking.

The issue of motion fluidity and blurring is largely predetermined by the use of a 60Hz panel, which naturally makes it difficult to recommend this receiver to enthusiasts of very dynamic content. Fortunately, in the Q80FUX, we find a few options (though, as we will see shortly, actually only one) designed to improve the experience with older film productions. There is a "De-Judder" slider available, which indeed affects the smoothness of the image and allows us to adjust it to our preferences: from raw, cinematic frame rates to a more theatrical, smoothed presentation. However, a genuine surprise awaits us right next to it in the menu. There is also a second slider, supposedly dedicated to eliminating blur – this is a feature we usually encounter in 120Hz panels, aimed at combating motion blur in sports. However, as expected, recalling memories from testing the K85F model, here too this slider is merely a facade. Moving it does absolutely nothing to the image and it simply looks like an oversight by the product engineers who left a non-functional option in the software for this type of panel.

TCL C7K is a television that on paper looks like the dream equipment for gamers – and most importantly, it holds up well in practice. First, the good news: we have two full-bandwidth HDMI 2.1 ports, so we can easily connect both a console and a computer, taking full advantage of their capabilities. The panel itself supports a refresh rate of 144 Hz, which provides a significant advantage in dynamic games. Additionally, it comes with a full suite of gaming features: VRR (variable refresh rate), ALLM (automatic low latency mode), and support for Dolby Vision in games. There's also an HGiG mode that allows for HDR effects consistent with the creators' intentions. GameBar, which is an informative bar for the gamer. It operates quickly, looks clear (like the Nintendo console👌), and shows what’s most important: the current frame count, VRR status, and even HDR parameters.

Stepping into the gaming territory, the Haier Q80FUX proves to be quite a decent companion for the "casual gamer." On board, we find today’s highly desired features like VRR (variable refresh rate) and ALLM (automatic low latency mode). However, the biggest surprise is something else. Although we are not dealing with a 4K@120Hz panel, the TV can accept and display a 120Hz signal at a lower resolution (Full HD). This is a very useful feature, allowing the conscious switch of the console to a lower resolution mode in exchange for significantly higher fluidity, which is a perfectly acceptable compromise in the gaming world.

We won’t particularly complain about the lack of extras like the "Game Bar," as it’s just a nice addition. The most concerning issues arise when we enter the world of HDR in games. Due to the fact that the TV constantly adapts the signal "in its own way," setting the brightness on the console according to the HGIG standard is nearly impossible to accomplish as per the instructions. Worse still, in the Dolby Vision mode for games, the input lag rises to about 50 ms, which is a high enough value that essentially makes this mode unusable. However, generally, we wouldn’t recommend gaming on this TV in HDR mode, so these aren’t such serious shortcomings. The most pleasing aspect is the presence of 120Hz in Full HD, which makes the Q80FUX quite a nice TV for the occasional gamer.