Hisense U7KQ vs TCL C7K / QM7K 55"-85"

Describing the HDR effect in the hundred-inch model Hisense U7KQ is not straightforward and requires a broader context. As can be seen, the results are highly variable, depending on the type of scene and the intensity of the bright effects that the television has to reproduce. In bright scenes, the device achieves over a thousand nits of brightness, translating to vivid and realistic images – these are exactly the effects we expect from equipment of this class. Unfortunately, the situation worsens in darker scenes. In mixed shots, such as those in the film "Gemini Man," the television still offers good brightness at around 700 nits, allowing for high-quality viewing. However, problems arise in very dark scenes where small light sources play a major role. The television does not fully utilise its capabilities here to avoid degrading the black levels in adjacent areas. As a result, there is no spectacular "WOW" effect, and such shots often do not give the impression of being realised in HDR technology.

In terms of brightness, the models ranging from 55 to 85 inches in the C7K series are truly impressive. Under optimal testing conditions, the 65-inch screen exceeded 1200 nits, which in practice means that the brightest scenes can dazzle with almost cinematic brilliance. These are not just dry figures from measurements – during screenings, bright skies, explosions, or reflections of light on water looked incredibly striking, often giving the impression that the television exceeds its price range. This is particularly effective in scenes with large areas of illumination, where the screen fills with intense brightness – for instance, in sun-drenched shots or during dynamic action sequences. Viewers looking for strong HDR will definitely be satisfied.

However, scenes that require precise backlight control – with tiny points of light against a dark background – prove to be 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 lighthouse or single reflections, may appear 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 not offered by standard LCDs, but this comes at the cost of limited visibility of the tiniest lights.

The best factory mode we measured was “Filmmaker”. Despite this, its characteristics left a lot to be desired. Let’s take a look at the gamma chart, which is responsible for the depth and contrast of the image. First, we'll note the orange line running through the middle of the graph, starting at point 2.4. This is the reference value of the REC.709 standard. Now let’s look at the measured value, marked by a white, connected multi-point. Such a clear drop in gamma to a value of 2.0 meant a significant reduction in contrast, resulting in the image lacking appropriate depth, and the so-called “milk” effect was noticeable. The next thing we tested was the white balance. Though seemingly minor, if poorly adjusted, it can change the entire characteristic of the image. While the beginning of the chart looked quite promising, as we progressed further, the chart began to be dominated by two colours: red and blue. Due to the current state of affairs, all the materials we used for testing had an unpleasant tint in those colours. However, thanks to rich calibration tools, such as an advanced colour management system (CMS) and 2- and 20-point grey scale adjustments, we were able to significantly improve the display's performance in SDR materials, as confirmed by low deltaE errors and very well-modeled gamma and white balance.

The new feature in TCL TVs for 2025 is the long-awaited Filmmaker mode, which until now has been found in most competing brands. This is great news, as this mode is regarded as the one that best 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 could critique the incorrect white balance, particularly the slight dominance of blue, which caused cool, slightly greyish skin tones. But that was not the biggest issue. The main complaint was the excessive brightness exposure, which is clearly visible on the gamma and EOTF graphs. The picture was simply too bright, at times even blown out, which affected not only the richness of the scenes but also the overall viewing experience. Some details were simply lost, and the whole image looked as if someone had overdone the brightness slider a bit. As always – we decided to see what could be squeezed out of this after calibration. And that’s where it started to get really interesting…

In SDR mode, after calibration, the Hisense 100U7KQ television performs excellently. There is nothing to fault in terms of colour reproduction - both pastel and deeply saturated hues are displayed according to the Rec. 709 standard. This ensures that the image looks natural and in line with the director's vision. As a result, viewers can enjoy an authentic visual experience, with colours and tonal subtleties faithfully represented.

In HDR mode, however, there is a noticeable boost in bright tones. The television tries to enhance the image, which can lead to artificial brightening. This phenomenon becomes even more apparent in real scenes, where bright parts of the image can be excessively amplified. Although colours in HDR are generally good, they are intentionally boosted too much by the manufacturer, which may affect their naturalness.

This manufacturer's approach to displaying images in HDR mode may not be to everyone's taste, especially those who value authenticity and fidelity to original colours. However, for those who prefer more dynamic and vivid images, this bright tone enhancement can be an appealing solution, adding extra sparkle and impact to scenes.

After calibration, the TCL C7K put on a really good show, especially when it comes to SDR content. We managed to precisely tune the white balance, colour gamut, and brightness characteristics, resulting in colour errors on the ColorChecker palette dropping below a value of 2. For the uninitiated – this is an almost perfect score, meaning the image is very close to what the creators intended. Unfortunately, things didn’t look as good with 4K HDR content. While we managed to slightly calm down the white balance and correct its previous errors, it still shows that the TV has some "MiniLED traits," especially in brightness management. When we checked how the C7K handles the EOTF curve on actual movie scenes, rather than just synthetic test patterns, it turned out that the screen still has a tendency to slightly brighten the entire image. This affects the overall experience – blacks lose 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 really very good. After calibration, the C7K can display an image that can successfully compete with much more expensive models. Good tuning of colours, natural skin tones, and pleasant brightness make movie sessions and everyday content viewing more than satisfying.

Despite the television being equipped with a function to reduce posterisation called "Smooth Gradation", we did not notice a significant effect of its operation. Materials subjected to heavy compression, such as YouTube videos, still showed choppy, abrupt tonal transitions, which did not look particularly appealing. While this is due to the material itself and not the television, it would be good if there was a function to mask these issues, similar to those found in competing brands.

Image scaling, which is crucial when playing lower resolution content, we rate as average. Details are not overly blurry, and the image is not "smudged", however, there is noticeable jaggedness on the edges of objects, such as branches, and a halo effect around characters and text. While the television performs quite well, there is still room for improvement, especially in the context of displaying lower quality materials.

TCL C7K comes with a feature that, according to the manufacturer, aims to smooth out unwanted colour 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. And worse still – the feature can cut out elements from the image that should remain. Fortunately, film grain is left untouched, so at least it doesn't smooth everything indiscriminately, but even so – it's best to just turn this option off.

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

The TV correctly receives a 4K signal up to 144 Hz, allowing for very smooth images in high resolution. When limited to Full HD resolution, the TV can handle even 240 Hz, but such a signal can only be obtained from a PC. Unfortunately, the use of this feature is limited by several factors.

Firstly, Full HD resolution on a large TV screen may seem insufficient, affecting image quality. Furthermore, the response time of the panel in this model is not short enough to fully utilise the refresh rate of 240 Hz. As a result, at such a high refresh rate, there is significant overdrive, which causes noticeable smearing and so-called "ghosting" behind moving objects.

It is also worth noting the motion smoothing feature in the TV, which operates up to 120 Hz. This is particularly useful when watching sports and movies, where motion smoothness is crucial. The TV offers stable operation of this feature, minimising the amount of generated artefacts. Motion smoothness can be adjusted using two sliders – one for smoothness in movies and the other for reducing smearing in sports content.

In summary, although the TV Hisense U7KQ offers impressive capabilities in image refresh rates, limitations related to the response time of the panel and appropriate resolution may affect the actual benefits of these features. Nevertheless, the motion smoothing function works very well, enhancing the experience of watching dynamic content.

TCL C7K handles motion smoothness really well. The panel used in it offers a refresh rate of 144 Hz, which alone suggests that this TV is more than just a regular "60 Hz" panel. Moreover, 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 PC compatibility. Returning to everyday use – both sports and movies look very good here. Thanks to the quick panel and the well-functioning motion smoothening feature, the C7K is great for watching matches as well as for movie screenings. In the menu, we find two sliders – blur reduction and flicker reduction – that allow adjusting the smoothness effect to personal preferences. At lower settings, we get a more cinematic effect, with a slight judder. At higher settings – the image becomes more theatrical, smoothly even to excess. Whatever your taste, everyone can set it to their liking.

The Hisense U7KQ TV supports all the key features for gamers that users of Xbox or PlayStation consoles might expect. These features include support for high refresh rates, low input lag, and a game bar. Generally speaking, most of these features work well, providing a satisfying gaming experience.

However, the VRR (Variable Refresh Rate) technology does not function optimally. When VRR is activated, the TV disables local dimming, which significantly reduces image quality. In VRR mode, there is a lack of good contrast and high brightness in HDR mode, resulting in unsatisfactory image quality. In practice, this means that the VRR mode may be rarely used by gamers due to these limitations.

Additionally, the TV does not support the HGIG (HDR Gaming Interest Group) mode, which is designed to optimise HDR image quality in games. The absence of this mode leads to issues with double tone mapping—once in the TV and again in the console. As a result, the quality of HDR gaming is lower, which can affect the overall gaming experience.

In summary, while the Hisense U7KQ offers many features for gamers, certain key aspects, such as optimal VRR performance and support for HGIG, may not meet the expectations of more demanding users. Nevertheless, the TV still provides good support for most standard gaming features, making it a suitable choice for a wide range of gamers.

TCL C7K is a TV that on paper looks like the dream gear for a gamer – and most importantly, it also holds up in practice. First, the good news: we have two HDMI 2.1 ports with full bandwidth, so we can easily connect both a console and a computer, making use of all their capabilities. The panel itself supports a refresh rate of 144 Hz, which gives a considerable advantage in fast-paced games. On top of that, it comes with a full suite of gaming features: VRR (variable refresh rate), ALLM (automatic low latency mode), and Dolby Vision support in games. There’s also an HGiG mode that provides an HDR effect aligned with the creators' intentions. GameBar, which is an information bar for gamers. It operates quickly, looks clear (like a Nintendo console👌), and displays what matters most: the current frame rate, VRR status, and even HDR parameters.