TCL C6K vs Sony BRAVIA 5 (XR5)

TCL C6K is a moderately bright television that can showcase its full capabilities in the best movie conditions – the maximum brightness is around 600 nits. In scenes with large, intense light sources, the HDR effect can be truly satisfying, providing a sense of cinematic sparkle. However, it's important to remember that with local dimming management, there are situations where some elements become dimmed, and sometimes even barely visible. It is clear that there is a lack of proper optimization of the algorithms, although looking at the technical parameters in this price range, the build quality performs very well.

Looking at similar results in terms of black levels and contrast, we expected the same stable performance as last year's model when it comes to HDR content. Unfortunately – and this must be said plainly – there has been a regression here that is hard to miss. The paradox is that the peak brightness of the Bravia 5 can be impressive: in our synthetic tests, the TV reached around 1000 nits in HDR. Sounds great, right? The problem is that this power doesn't always have a real impact on all movie scenes. When small, pinpoint elements appear on the screen, something that in Sony's case was usually fine-tuned with surgical precision, this time it clearly falters. The algorithms try to maintain deep blacks around small objects, but the side effect is that details can be dimmed to the point of becoming barely visible. One only needs to bring up the example of the movie Sicario 2 – there, in some scenes, small light sources practically vanished as if someone had covered them with dark film.

Of course, not everything looks so dramatic. In simpler, brighter scenes, where the image is filled with more light, the Bravia 5 shows that it can shine: literally and figuratively. At those times, the TV achieves values in the range of 600–800 nits, which we saw both in synthetic tests and during movie screenings. The impression is really positive; the brightness adds dynamism, and the colours look vibrant and fresh. However, there remains a certain dissonance. We feel a slight confusion because it is evident that something has gone in the wrong direction. Technological progress – more zones, more backlight power – has not been supported by the kind of refined image management that we usually associate with Sony. Fortunately, there are elements that have not been compromised and are actually at a very high level. We are talking about colour reproduction. Thanks to the use of the PFS filter, the colour palette coverage is excellent – about 97% DCI-P3 and 75% BT.2020. These values allow for a truly wide colour reproduction, giving films a natural and cinematic character.

This year's TCL televisions have introduced the Filmmaker mode, and it must be said that it is definitely the best choice right out of the box. This is the mode we recommend for everyday viewing of movies and series. Unfortunately, as is often the case, the best does not mean perfect. In the case of SDR content, the image was too warm, as the red was quite prominent in the white balance. On the other hand, with HDR content, we had the opposite impression – the image became cooler than it should have been, due to an excess of blue. There is also the brightness characteristic, which at times led to overexposure. In practice, these issues combined resulted in quite noticeable errors in colour tests, which are hard to accept in a mode advertised as “by the creators”.

Sony Bravia 5 was obviously tested in the best possible mode, which is the Movie mode. Right out of the box, it delivers the most natural colours, definitely better than anything offered by the "eco" or "dynamic" modes, which are more suited for a store display than a living room. However, the Movie mode alone does not guarantee that we can always expect cinematic picture quality. In SDR content, we had no significant complaints – the slightly warmed white balance gave the scenes a golden hue, but it was nothing that was glaring. However, a problem arose with HDR materials. Here, the colour reproduction simply looked bad. The white balance was heavily skewed – with an excess of blue and a clear lack of red. At times, it resembled the store mode of "super vivid picture," where everything is blown out and artificially boosted.

This situation made brightness management seem too aggressive as well. The EOTF graph clearly showed that the television has trouble with overexposing many scenes right out of the box. And while we know what Sony televisions are usually capable of, it was hard to remain indifferent here – that’s why we quickly decided to go for calibration.

Thanks to the white balance adjustment, we were able to significantly reduce the C6K's tendency to distort colours, which resulted in a very good end result. After calibration, we won't observe the effect of excessive warming of scenes in SDR or overly cooling the image in HDR. However, it is worth taking a closer look at the brightness characteristics. In SDR content, it's hard to have major objections – the picture looks really good, especially in older movies, TV shows, or material from YouTube. It performs significantly worse with HDR content. An analysis of the EOTF curve suggests that everything is fine, but in practice (EOTF in movies), the limitations of the construction become apparent. The television tends to excessively brighten the smallest fragments of the frame, and in other situations, it can overly dim the entire scene. The effect of calibration is therefore noticeable, and regarding colourimetry, the C6K has really gained a lot, but certain limitations resulting from local dimming and actually from its management by the C6K simply cannot be overlooked.

After calibration, the situation changed dramatically. We managed to tune the white balance so that entire scenes began to look more natural, and the image gained coherence and elegance. In HDR, we finally got rid of that unwanted clipping effect that had previously spoiled some shots. Suddenly, it turned out that the Bravia 5 can extract much more from films than the first contact "straight out of the box" suggested. Indeed, if we look at the graphs and compare them with the standards, we can see that the beginning of the EOTF curve slightly strays beyond the reference line. However, this is not so much a calibration error as it is a natural limitation of the Mini-LED technology that cannot be bypassed. Sony, rather than clinging tightly to perfect black, prefers to prioritise the visibility of details – and in practice, it’s hard to disagree with that. We prefer to see the texture of the material on the screen rather than a pitch-black spot where all nuances disappear.

The calibration itself was really beneficial. After about an hour spent on settings, we felt that the image resembled that of the best cinema halls – of course on a home scale, but with the same sense of quality and refinement. And in such moments, we remember why we love Sony televisions: because once we fine-tune them, they reward us with a picture that captivates for long hours.

TCL C6K performs quite well in terms of upscaling. Lower quality materials appear acceptable, and the absence of overscan issues means the image is displayed in full, without cropping. However, one cannot expect miracles – very low quality content won't come to life here, as the image processor has its limitations. On thin lines or details, there is characteristic tearing visible, which indicates a lack of advanced image enhancement algorithms. It is also a shame that the C6K lacks the function of smoothing tonal transitions – in older films or video materials, colour banding can be noticeable and may be distracting during longer viewing sessions.

Bravia 5 carries the genes of Sony, which remain intact – and thank goodness for that, because we're talking about absolutely exceptional digital image processing. It's no coincidence that for years, it's been considered that TVs from this brand set the standard for how a screen should handle lower quality materials. If someone still watches classic television, old films, or YouTube in lower resolutions, here they get equipment that can turn such content into a surprisingly enjoyable experience. On board, we find several tools worth activating. The first of these is "digital noise reduction." Set to a medium level, it works superbly – smoothing out tonal transitions that usually cause the most trouble in low-quality materials while introducing no artificial artifacts. Importantly, it also doesn't remove the cinematic character, which is the natural grain that is intentionally present in many productions. Another advantage of the Bravia 5 is the upscaling capabilities of the XR processor. The image presented after scaling is soft, yet sharp and clear. The outlines of characters are well-defined, and backgrounds maintain their texture without excessive artificial sharpening. It's hard to find a better TV for watching lower quality materials – Bravia 5 only confirms why Sony is considered the benchmark in this area.

TCL C6K uses a 144 Hz panel, which is a significant advantage in this price range. It's an important step forward in comparison to the previous model C655 PRO, which only offered 60 Hz in 4K. The difference is especially noticeable when watching sports or playing games – the ball, players, or fast action in the game are displayed more clearly and without losing detail. An interesting fact is the panel's ability to operate at 240 Hz, which the manufacturer doesn't mention in official materials. We will return to this topic when discussing the PC gaming mode.

TCL has also added a feature for movie watchers: "Motion Clarity," which allows users to adjust the image according to their preferences with two simple sliders. You can either keep the visible film frame or opt for a very smooth, almost theatrical effect. This way, everyone can find settings that match their taste.

Bravia 5 has a 120 Hz panel, which in itself sounds like an invitation to watch sports, fast matches or spectacular action films. However, the real magic begins when MotionFlow – Sony's proprietary motion smoother – comes into play. Thanks to this feature, we can adjust the character of the picture to our own preferences. The "smoothness" slider allows us to transition from a cinematic feel with a slight "judder" to a theatrical fluidity, where every ball in the match glides across the screen as if on a string. The higher the value, the smoother and more fluid it is; the lower it is, the more film-like and natural it becomes. In the options, we also find an additional setting that Sony calls "clarity". This is nothing more than the BFI function (which inserts black frames) aimed at improving motion sharpness. It sounds great in theory, but in practice, it must be used with caution. Why? Because all higher settings cause brightness drops of up to half, and in some cases, contour doubling also appears. So if we want to use it, we recommend setting it to the lowest level – "1" out of the available ten. That way, we gain a bit better motion sharpness without risking losing half the brightness of the picture.

The TCL C6K is a television that can confidently be called equipment designed for gamers. We have 4K at 144 Hz, VRR support, an automatic gaming mode (ALLM), and Dolby Vision Gaming. On top of that, there's a practical Game Bar, which is a panel with the most important settings handy – useful when we want to quickly change something during gameplay (e.g. screen ratio: Yes, you can!). Notably, it has a wide range of VRR, reaching up to 240 Hz. However, this option is mainly for PC gamers who drop below the native 4K resolution. In that case, the television can spread its wings and show additional smoothness, especially in fast e-sport titles. For consoles, we stick with the classic limit of 120 Hz, but the possibilities are still quite broad. The only slight drawback is some minor motion blur that can occasionally be seen in dynamic scenes. Other than that, the C6K offers everything gamers expect from a television.

In the Bravia 5, there is a significant improvement compared to the X90L model from two years ago. The television offers literally everything its predecessor had, but this time the issues that could frustrate gamers have been addressed. Problems with setting the variable refresh rate (VRR) have disappeared, and there are no longer issues with configuring HDR content in HGiG mode. In short: we get a device that simply works as it should, without any hassles. So, the Bravia 5 has everything you can expect from a modern gaming TV – and it can be confidently advertised with the slogan "ready for PS5." That's something we couldn't say about the X90L model. Well done, Sony!

It's just a shame that this relatively high-priced model lacks a full set of four HDMI 2.1 ports. In everyday use, this won’t be an issue for most people, but if someone has a console, soundbar, and additional equipment connected via HDMI, at some point they'll have to choose or juggle cables.