TCL C7K / QM7K 55"-85" vs Hisense U7S Pro

In terms of brightness, the models ranging from 55 to 85 inches in the C7K series are truly impressive. Under the best testing conditions, the 65-inch screen reached over 1200 nits, which in practice means that the brightest scenes can shine with almost cinematic brilliance. These are not just dry numbers from measurements – during viewings, the white skies, explosions or reflections of light on water looked extraordinarily striking, often giving the impression that the television exceeded its price class. This is particularly effective in scenes with large areas of brightness, where the screen is filled with intense light – such as in sunlit shots or during dynamic action sequences. Viewers seeking strong HDR will definitely be satisfied.

However, scenes that require precise control of the backlighting – with small points of light on a dark background – prove to be more challenging. Here, the C7K, despite having over a thousand zones, still dims the brightness to maintain deep blacks. The effect is that in films like Sicario 2 or Life of Pi, some details, like a distant lantern or single reflections, can be less distinct or blend into the surroundings. This is a compromise inherent in 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 finest lights.

Let's start with the fact that the U7S Pro is an impressively bright television – in calibrated mode, our measuring equipment indicated a staggering 2200 nits of peak brightness! This is an absolutely remarkable result, considering that this model is positioned rather as a mid-range option.

However, as we know, peak brightness on test patterns is one thing, and actual film scenes are another. Unfortunately, in real video materials, the backlight power clearly drops. Although in the most demanding moments, the television can still exceed the 1000-nit barrier – which is still an excellent result, perfectly aligned with the mastering standards of most HDR films – the real challenge comes from the aggressively tuned local dimming algorithms. Because of this, small, bright details such as stars or the moon in the night sky are noticeably dimmed. The television tries at all costs to maintain deep blacks, which is of course understandable, but unfortunately, this comes at the expense of the dynamics and brilliance of the HDR effect itself.

One must commend the colour reproduction. The new U7S Pro is a QLED design that provides very wide coverage of the colour palette. Unlike last year's model (U7Q Pro), this year's variant is a "true" QLED, rather than a solution based on a PFS filter. As a result, the colour saturation has clearly increased, and coverage of the most demanding BT.2020 colour space has surpassed the 81% barrier.

A new feature in TCL televisions for 2025 is the long-awaited Filmmaker mode, which until now could be found in most competing brands. This is great news, as this mode is considered the one that most accurately represents 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 it does not guarantee perfection. The Filmmaker mode in the TCL C7K is not without its flaws. One can point out the incorrect white balance, particularly the slight dominance of blue, which resulted in cool, somewhat greyish skin tones. But that was not the biggest issue. The main complaint was excessive brightness exposure, which was clearly visible on gamma and EOTF charts. The image was simply too bright, at times even overexposed, which affected not only the texture of the scenes but also the overall viewing experience. Some details were simply lost, and the entire image looked like someone had slightly overdone the brightness slider. As always, we decided to see what could be squeezed out of it after calibration. And that’s where it started to get really interesting…

We tested the U7S Pro model – as we always do – in the best factory-calibrated picture mode, namely Filmmaker Mode. We can evaluate the displayed colours in two ways. The most disappointing was the profile designed for viewing SDR content, that is, traditional television, YouTube, and other less demanding materials. The picture was clearly yellowed, which turned out to be a direct consequence of a poorly set white balance. As our graphs show, there is a significant deficiency of the blue component, which drastically affected the overall colour temperature. This is clearly visible on the ColorChecker charts as well as on the graphs of the colour palette itself, where most samples leaned towards yellow. Fortunately, the factory HDR mode fared much better – there, the colour errors were around a Delta E value of 3, which is already a really solid result.

After calibration, the TCL C7K presented itself in a really good light, especially when it comes to SDR content. We managed to precisely tune the white balance, colour gamut, and brightness characteristics so that the colour errors on the ColorChecker palette fell below a value of 2. For the uninitiated – this is nearly a perfect result, indicating that the image closely resembles what the creators intended. Unfortunately, it looked worse with 4K HDR content. While we slightly managed to calm the white balance and correct its previous errors, it still shows that the TV has some “MiniLED traits”, particularly in brightness management. When we checked how the C7K copes with the EOTF curve on real film scenes, rather than just synthetic test patterns, it turned out that the screen still tends to slightly brighten the entire image. This affects the overall impression – the black loses some depth, and the image becomes less contrasty than it should be. Despite these minor shortcomings in HDR content, the overall reception of materials – especially in SDR – is truly very good. After calibration, the C7K is capable of displaying an image that can successfully compete with much more expensive models. Good colour tuning, natural skin tones, and pleasant brightness ensure that movie sessions and everyday content viewing are more than satisfactory.

We know, however, that the company Hisense is capable of much more – as previous generations have demonstrated – which is why we couldn't simply overlook the factory shortcomings of the U7S Pro model in everyday content. As is often the case, the television underwent professional calibration. The conclusions? This process brought about a colossal change. After manually adjusting the white balance and supplementing the deficiencies in the blue component, the annoying yellow tint disappeared as if by magic. White became naturally pure, and skin tones gained the appropriate, healthy hue. Importantly, calibration not only tamed the capricious SDR mode but also allowed us to extract the maximum potential from the panel, reducing average colour reproduction errors to levels nearly imperceptible to the human eye. The only thing we must criticise after the whole process is the very nature of the Mini-LED backlight and its specific interaction with the HDR signal. The aggressively tuned local dimming algorithms significantly interfere with the EOTF brightness curve. As a result, the backlight does not always work perfectly with the creator's intention – depending on the scene being viewed, the curve can noticeably deviate either above or below the reference, which at times disrupts the ideal dynamics of HDR imagery.

The TCL C7K features a function that, according to the manufacturer, is designed to smooth out unwanted colour transitions – a sort of rescue for less successful tonal shifts. 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. What's worse, the function can cut out elements from the image that should remain. Fortunately, the film grain remains untouched, so at least it doesn't smooth everything indiscriminately, but still – it's better to simply turn this option off.

When it comes to scaling lower resolution content, it’s much better. SD and HD materials look quite decent, although at times we had the impression that the image was losing sharpness and becoming too soft – as if something was detracting from 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.

The digital processing of lower quality signals is at a very high level here, thanks to the MediaTek Pentonic 800 processor used in the U7S Pro. The upscaling performance is equally impressive, meaning the television’s ability to enhance lower resolution signals to 4K. We did not notice any unnatural, sharp contours on the screen, and our test image featuring the model simply looked attractive.

The TCL C7K handles motion smoothness really very well. The matrix used in it offers a refresh rate of 144 Hz, which in itself suggests that this television is something more than a regular "60 Hz" panel. What's more – if we connect the C7K to a computer and set the resolution to Full HD. But we will write more about this in the section for gamers and cooperation with PCs. Returning to everyday use – both sports and films look very good here. Thanks to the fast panel and well-functioning motion smoother, the C7K is great for watching matches, as well as for film screenings. In the menu, we find two sliders – blur reduction and flicker reduction – which allow you to adjust the smoothness effect to your own preferences. At lower settings, we get a more cinematic effect, with a slight choppy motion. At higher settings – the image becomes more theatrical, overly smooth. Everyone can set it to their liking.

The Hisense U7S Pro uses a panel with a maximum refresh rate of 165 Hz in 4K, and in game mode, it can reach up to 330 Hz at Full HD resolution. However, it is important to remember that these highest figures do not significantly matter in everyday use, as most content is still limited to a maximum of 120 Hz (for example, when gaming on a console). Nevertheless, the television handles motion quite well and performs really decently for an LCD construction.

There is little to criticise about the fluidity itself. In the menu, we find a motion smoother called "Motion Enhancement", which hides two sliders: blur reduction and judder reduction. These allow for manual configuration of the smoother, which works well in both films and sports, effectively enhancing the raw television signal.

The TCL C7K is a television that on paper appears to be the dream equipment for gamers – and most importantly, it also holds up in practice. To start with the good news: there are two full-bandwidth HDMI 2.1 ports, so we can easily connect both a console and a computer, making full use of their capabilities. The panel itself supports a refresh rate of 144 Hz, which provides a significant advantage in fast-paced games. Additionally, it comes with a complete set of gaming features: VRR (Variable Refresh Rate), ALLM (Auto Low Latency Mode), and support for Dolby Vision in games. There is also an HGiG mode that allows for an HDR effect in line with the creators' intentions. GameBar, which is an information bar for gamers. It works quickly, looks clear (like a Nintendo console👌), and shows the most important information: the current frame rate, VRR status, and even HDR parameters.

If you plan to connect a console or PC to the U7S Pro, you will be more than satisfied – this television is excellent equipment for a gamer. Hisense has not spared any expense and has included as many as 4 HDMI 2.1 ports with full bandwidth of 48 Gbps. You won’t need to juggle cables as each port will handle the full set of features. We have an automatic game mode (ALLM) and VRR, which operates in a wide range from 48 Hz to an impressive 330 Hz. Of course, that 330 Hz is currently a gimmick for owners of powerful PCs, as consoles will be limited to 120 Hz, but it’s good to have that buffer for the future. The Game Bar also works very well during gaming. It’s a handy menu bar for gamers, where you can quickly change the picture mode, enable a crosshair in the centre of the screen, and even change the display aspect ratio to ultra-wide without having to exit to the main television settings, which will be appreciated by fans of PC simulators. The only downside worth mentioning is the improper implementation of the HGiG format in games. The issue is that the television ignores instructions from the console regarding the image generated in HDR10 and continues to forcefully interfere with the image it produces, trying to "enhance" it in its own way. This makes proper HDR configuration in the console menu (where you set brightness on symbols/checkerboard) somewhat difficult.