TCL C7K / QM7K 55"-85" vs Blaupunkt UGC5500S

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.

Here, we won't beat around the bush either – if you're looking for a TV strictly for cinematic HDR experiences, you've come to the wrong address. The Blaupunkt UGC5500S unfortunately is not a machine designed for such challenges. This is primarily due to its very low brightness, which we measured during our tests. A result of around 250 nits on film screens speaks for itself. It's simply too little to even talk about any real HDR effect. To be honest, everything displayed here in this format can best be considered a slightly "boosted" SDR mode. We expected this because practically every device in this price range fails in this regard, but we feel obligated to warn you. Manufacturers love to boast about HDR compatibility stickers on the boxes, but in reality, this format simply doesn't exist here – it lacks the "fuel" of brightness.

The situation is made all the more difficult for Blaupunkt because we have a panel with a very basic DCI-P3 color gamut coverage of just around 80%. You won't find any advanced coatings that enhance these capabilities (like quantum dots), making scenes that are supposed to burst with richly saturated colors appear simply desaturated on this screen. Therefore, we have a concrete piece of advice for you: do not push the HDR mode on this model. If you have the option in the streaming app settings – just turn it off. Sticking with the classic SDR mode will ensure that the TV won't try to "enhance" something that it can't handle hardware-wise.

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…

We also took a close look at how Blaupunkt handles colors in movie mode, and here the situation is, to put it briefly, twofold. We must clearly separate what we see in the standard SDR format from what happens when HDR is turned on, as these are two completely different worlds. Let’s start with the better side of the coin. If you plan to watch classic television, YouTube, or older movies on this TV, you can count on really well-tuned colors. In our test sample, the white balance in movie mode was exceptionally accurate, which honestly surprised us. Of course, to not make it too rosy, we noticed some flaws. Looking at the gamma charts, we observed that the processor struggles with properly dimming the image in its brightest parts. Additionally, there is quite strong, at times too aggressive, red saturation, which resulted in noticeable errors in reproducing certain shades. Nevertheless, in general terms, the image in SDR is simply solid and watchable without a grimace on your face. Unfortunately, the magic fades when we re-enter the world of HDR. Here, Blaupunkt behaves as if we suddenly switched it to store mode, and in its worst form. The excess blue in the white balance is so overwhelming that it literally clashes with the eyes, ruining any realism of the scene. Furthermore, the TV interprets brightness very loosely, which, when analyzing the EOTF curve, clearly showed that for most of the time the colors appear simply washed out and lacking depth. This is, by the way, perfectly visible in the color errors that become evident in this mode. Once again, we are left with the same conclusion: Blaupunkt in SDR mode looks significantly better and more natural than in HDR, which feels forced and not properly refined.

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.

It may sound like a joke – pulling out professional measurement equipment for a television costing around a thousand zlotys / 250 dollars – but we wouldn't be ourselves if we didn't check it out. The question is: does such cheap equipment give us any room for calibration? To your surprise, the answer is yes, and absolutely so. In the Blaupunkt UGC5500S menu, we found surprisingly many options that allowed us to really work on the picture. These are not just empty sliders; they are concrete tools that enabled us to make use of our measurement sensors and software. In SDR mode, the effects were noticeable to the naked eye. We successfully eliminated the issue we mentioned earlier – that excessive, almost artificial saturation of reds. We also fixed the problem of incorrect dimming of the brightest parts of the image. After calibration, the standard format picture became much more balanced and simply correct. As for HDR, the situation was again more complicated. Although we managed to "tame" that aggressive blue tint in the white balance, it was evident that we were fighting a bit in vain. Even after changing the settings, the television still tried to intervene in the image in its own way, as if the electronics knew better than we did how the scene should look. Additionally, there's a hardware barrier that no slider can overcome – colors in HDR still remain unsaturated. This simply results from the quality of the panel itself; it physically cannot produce the most vibrant colors. To summarize this point: if any of you ask whether it’s possible to calibrate a television for "a thousand," we respond with full conviction: it is possible.

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 you expect that the processor in this model will magically "fix" the poor quality signal from cable TV or old films from YouTube, we must disappoint you. The capabilities of this television end with absolutely basic upscaling, which is simply stretching the image to a higher resolution. It does this correctly in that the image is not blurry, but there is no talk of any intelligent sharpening or adding details. Worse still, Blaupunkt is completely devoid of any functions that reduce unwanted tonal transitions. If the material being viewed has so-called banding (ugly "steps" instead of a smooth transition of colors, e.g., in the sky), this television will display them in all their glory. Additionally, the television tends to slightly crop the edges of the image. Instead of displaying 100% of what the source sends, Blaupunkt slightly enlarges the frame, causing us to lose details located at the very edges of the screen. In summary: in the category of digital "enhancement" of the image, Blaupunkt simply performs poorly. We receive a raw, unprocessed signal with all its flaws.

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.

When it comes to motion fluidity, Blaupunkt has nothing to defend itself with. A 60 Hz panel at this price is standard, so none of us expected a perfectly sharp image during fast action scenes or while watching a game. However, the biggest drawback of this model is that you won't find any digital smoothers in the menu. The manufacturer did not give us any room to maneuver – there's no way to smooth anything out or adjust the image to our preferences. The image is always "raw" and we receive it exactly as the source transmits it. For fans of cinematic "motion jump," this might be fine, but everyone else just has to get used to the absence of any motion support.

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.

When it comes to gaming on the Blaupunkt, we didn’t expect miracles and indeed – the list of features is not very long. However, there are two interesting points worth mentioning, as they may be significant for some of you at this price. The first advantage is that the TV quite efficiently detects the connected console. Thanks to the ALLM (Auto Low Latency Mode) feature, the device automatically knows when you start gaming and switches to low latency mode. This is convenient because you don’t have to fiddle with the settings every time to prevent input lag from ruining the fun. The second point is a real curiosity that surprised us. Even though it’s a 60 Hz panel, the Blaupunkt can display images at 120 Hz at Full HD resolution. Sure, we lose 4K details then, but for those playing more dynamic, online shooters where fluidity is more important than resolution, it’s a really nice and unexpected addition in such an inexpensive piece of equipment. Besides these two points, however, you won’t find anything else here. There are no advanced systems for improving fluidity for gamers or extensive gaming menu bars. It’s a simple screen for occasional gaming.