Hisense U8Q vs TCL C9K

When it comes to HDR, the Hisense U8Q shows its claws. On paper, meaning in synthetic measurement tests, the TV can "push out" nearly 4000 nits of peak brightness. This is a value that most models can only envy. In practice, this translates to very strong light effects in movies – in some scenes we managed to measure real levels from 1500 to 2000 nits, which is a level usually reserved for the absolute top-tier TVs on the market.

Of course, it's not always so perfect. In small, point-like elements, brightness can drop – a good example is scene number 4 from the movie Sicario 2, where instead of thousands of nits we get about 500. But it's worth noting that the effect doesn't disappear completely – the light is still visible, and the image doesn't appear artificially dimmed. This is a typical issue with Mini LEDs, so it’s hard to consider it a major drawback.

However, a huge plus has to be granted for colour reproduction. Thanks to additional coatings improving colour saturation, the U8Q almost covers the entire DCI-P3 colour space (98%), and for the wider BT.2020 gamut it achieved over 80%. This is an excellent result that makes HDR films look juicy, intense, and just very cinematic.

As we mentioned regarding black levels and contrast – the C9K can make a huge impression in synthetic tests. Our measurements showed that on a screen 10% filled with white, the television can achieve... 4000 nits of brightness! It sounds out of this world, but – and here's where the pattern unfortunately repeats – the numbers say one thing, and the practical experience says another. In real movie scenes, the situation looks different. In the best-case scenario, when light effects occupy a large part of the image and the local dimming algorithm doesn't have to ponder too much about what to do with thousands of zones, the effect is really quite good. At that point, the C9K can hit around 1500 nits, which delivers a pleasant, intense burst and can indeed leave a positive impression.

The problem arises with smaller elements – such as stars in the sky, the moon, or individual reflections. That's when the proverbial cat comes out of the bag: the algorithms are not yet refined, and brightness drops to as low as 400–500 nits. That's a huge difference from the potential 4000 nits we saw in lab tests. Why does this happen? Most likely, the television is trying to protect the black levels in this way and minimize the halo effect around bright objects. Unfortunately, this comes at the expense of detail – some details simply vanish, and the scene loses its nature.

We have to admit that when the U8Q arrived in our editorial office, we were slightly surprised… and in a good way. Usually, white balance in televisions immediately requires adjustment – it can be too warm or too cold, which immediately causes strange colour errors. Meanwhile, here the situation looks really good straight out of the box. Of course, we’re talking about our unit, so there’s no guarantee that every model will be tuned as well, but in our case, the first impressions were very positive. The only more noticeable issue was related to how the television manages brightness. Looking at the EOTF chart, it’s clear that the U8Q tends to brighten small elements on the screen. This, in turn, caused what we mentioned earlier – slight overexposure and the impression that the whole scene is a bit too bright. However, this is not a flaw that negates the picture, rather an effect characteristic of this model.

For colour tests, we once again reached for the Filmmaker mode – a new feature in TCL televisions for 2025. While the direction is a step in the right way, the execution leaves a lot to be desired. The white balance in SDR content turned out to be too warm – there was an excess of red. On the other hand, in HDR, it swung in the opposite direction: the image became excessively blue. The Colour Checker test revealed quite a few colour inaccuracies that were noticeable to the naked eye. An even bigger problem turned out to be what we mentioned above – brightness management. Regardless of whether we were watching SDR or HDR content, the image tended to wash out the entire scene, giving it an unnatural, almost grotesque character. Therefore, it’s hard to call this a "director's mode" – because no director has ever seen such an image.

Of course, we wouldn’t be ourselves if we didn’t make adjustments to the white balance. After calibration, we managed to level the SDR signal to near perfection – older films, YouTube content, and classic television looked nearly ideal on the U8Q. It’s truly an impressive level that shows this model can do a lot if given a bit of help. Unfortunately, the situation is different with HDR content. The colours themselves don’t pose much of a problem, but the biggest issue with the U8Q remains the EOTF brightness characteristics. In practice, the television tends to "shoot" above how the image should originally look. It’s this slight "blowout" we noticed earlier in comparisons with the best screens on the market. It’s a bit of a shame that this characteristic can't be completely tamed – if we could maintain equally good brightness control in HDR as we do in SDR, we would be looking at an absolutely reference-level image.

After calibration, we finally managed to tame the white balance – and it immediately translated into a more natural image. Colours finally started to look as they should, and the overall presentation was incomparably better than on the factory settings. In other words – it’s worth taking a moment to improve this, as the gain is really significant. The gamma responsible for brightness management also managed to be brought into order in SDR content, and the effect was more than satisfactory. Unfortunately, when we turned on HDR materials, the situation quickly became complicated. No matter how we set the local dimming, the television had a tendency to do what it liked with the image – either it overexposed everything or darkened the darkest parts too much. Just like we saw in the scene from the movie Billy Lynn. Colour-wise, the improvement after calibration makes a great impression, but brightness management in HDR remains the Achilles' heel of the C9K and presents a certain technological limitation.

Hisense U8Q handles lower quality materials quite well. The television can smooth tonal transitions thanks to the “Smooth and Gradient Picture” feature – it works best on the Medium setting. It nicely dims unwanted bands and irregularities in the image, but importantly, it doesn't remove the film grain or fine details.

The upscaling itself is also at a good level. Image from lower resolutions appears smooth and soft, sometimes a bit too much – we get a plastic effect that may not appeal to everyone. Fortunately, this can be easily corrected with the sharpness slider, allowing you to adjust the image to your personal preferences.

Digital image processing on the TCL C9K is rather average. The smooth tone transition feature seems to be present, but activating it practically changes nothing – colour bands are still visible, and it can unintentionally highlight elements we’d rather keep hidden, such as object textures. Fortunately, it doesn’t remove film grain, but that’s poor consolation given that the effects are still meagre. It’s therefore hard to recommend using this option.

On the other hand, image scaling presents itself much better. Lower quality materials look quite decent – characters and backgrounds are rendered clearly, although of course, with sources like 576p, the laws of physics cannot be fooled. Occasionally, there’s characteristic edge distortion of objects, but that’s the fault of the source itself, not the algorithm. A plus for not having issues with overscan – the image isn't artificially cropped or enlarged.

Hisense U8Q has a panel that can refresh the image up to 165 Hz in 4K resolution. In practice, this will mainly benefit PC gamers, but as they say – better to have it than not 😊. For movies and series, we have a built-in smoother called Ultra Motion Smoothing. In the settings, it can be easily adjusted to your own preferences – whether you want a more ‘cinematic’ frame rate or a smooth, theatrical spectacle.

Similar to the C8K, the C9K is also a really fast TV – both figuratively and literally. It features a 4K panel with a refresh rate of 144 Hz, and at lower resolutions, the panel can even ramp up to 288 Hz. Such speed translates into practice – while watching sports or playing games, the image looks very smooth and clear. Additionally, in movies, we get an extra motion smoother called Motion Clarity, which allows you to adjust the smoothness to your own preferences – from cinematic "judder" to almost theatrical smoothness.

In terms of features, the Hisense U8Q has practically everything one would expect from a modern gaming television. Thanks to the new processor, the manufacturer has managed to implement three HDMI 2.1 ports, so there’s no trouble connecting multiple consoles or a computer. On top of that, it includes all the key technologies – Game Bar with parameter previews, variable refresh rate (VRR), automatic game mode (ALLM)… in a word, a complete set.

But as often happens with Hisense, it’s missing just a bit from perfection. The biggest drawback remains the lack of support for the HGiG format, which allows the TV's brightness to be adjusted to the console and gets the most out of HDR in games. It’s a shame because if this feature were included, we’d have a device practically made for gamers. As it stands, the U8Q remains “only” a very good choice 😉

From a gaming perspective, the TCL C9K is a complete tool. It features two (out of four) full bandwidth 48 Gbps HDMI 2.1 ports, so all the key technologies work: VRR (Variable Refresh Rate) and ALLM (Auto Low Latency Mode). Additionally, the manufacturer has included a really intuitive Game Bar that allows you to quickly check the most important parameters and adjust settings without fumbling through menus. Also, TCL's policy is a plus – the TV isn’t afraid of any HDR formats, even in game mode. Whether it's HGiG or Dolby Vision for the Xbox Series S/X console – everything works as it should, giving the player plenty of freedom.