Hisense U8NQ vs TCL C655 Pro

Hisense U8NQ showcases its capabilities in HDR, achieving a brightness level on the luminance chart exceeding 2000 nits. In the first, third, and fifth scenes where the screen is covered in light, the television displays very high brightness, which impresses and allows one to enjoy the full effect of HDR. Unfortunately, in the second and fourth scenes, such as those from the movie "Sicario 2," the television encounters issues maintaining brightness, resulting in disappointing results around 250 nits. Although a large number of dimming zones should theoretically help, the algorithm responsible for their control does not always perform perfectly—bright, small elements like the moon or helicopter lights are too dim, which detracts from the typical HDR effect. Instead of dazzling brightness, we get a more subdued light that does not reflect the full HDR potential. Nevertheless, the television deserves praise for its very good coverage of the DCI-P3 colour palette at 97%. As a result, colours are vibrant, and most movie scenes look really good, significantly enhancing the viewing quality.

In the HDR effect quality category, the TCL 655 PRO television shows decent capabilities, achieving 550 nits of peak brightness. This allows for enjoyment of HDR effects, which is clearly visible in scenes such as the first from the movie Life of Pi or the last frame from The Meg. However, the limited number of dimming zones causes some problems. While in bright scenes the television performs better than its lower model, in more demanding scenes, such as the second and fourth scenes from Sicario 2, it struggles. The dimming algorithm aims for deep blacks, but at the cost of brightness – which in these moments leads to a decrease in brightness by as much as half. In these more challenging scenes with small elements, it is hard to find any praise, and the HDR effect resembles rather SDR. Nonetheless, the coverage of the color palette deserves commendation, which, like in the version without the PRO suffix, is at a very good level.

The Filmmaker mode on the Hisense U8NQ TV can be described as the most accurate mode available in this model. Despite its accuracy, it has significant errors in reproducing the reference image, which we will describe now. In the case of HD content, the white balance shows a clear dominance of red, making the image overly pink and warm. The comparative photo below illustrates how this effect influences content presentation. The brightness characteristics also leave much to be desired — too low gamma causes the screen to be excessively brightened, and blacks look lightened, making the overall picture seem cooler than it should be.

In the case of 4K HDR content, the problem is reversed — the white balance shows too much dominance of blue, resulting in an artificial character to the image and making it appear unnaturally sharp. These deviations for HD and 4K HDR content can be confirmed with the Colour Checker test, which clearly shows how colours deviate from the correct patterns.

Each of our TV tests is conducted in movie mode, which usually offers the best color reproduction. Nevertheless, even this mode is not free from problems, as we noted with the TCL 655 PRO model.

In the case of HD content, the white balance clearly shifts towards red, and this effect becomes particularly noticeable in a scene from Star Wars, where the white elements of the scenery take on a pink hue. For 4K HDR material, the situation looks better, but there is a tendency to excessively enhance the blue color. As a result, the image can appear artificially sharp, which proves to be uncomfortable for the eye over a longer period. The brightness characteristic also leaves much to be desired. The Gamma chart indicates serious difficulties with excessive brightening, causing the overall presentation to look washed out. Additionally, the EOTF curve reveals significant issues with the reproduction of very small elements - they are excessively dimmed, as we detailed in the paragraph regarding HDR effects.

The white balance for both 4K and HD content has been significantly adjusted, greatly improving the image quality. Although some errors are still visible, they are not substantial enough to heavily affect the perception of the image. A notable improvement can also be seen in the gamma brightness characteristics — the image is no longer overly bright, resulting in more natural blacks and better contrast.

However, as with many other Hisense models, there are visible issues with the EOTF curve, which is responsible for managing brightness in high-quality materials. Although it may seem correct, once the filter is applied on the "EOTF in movies" graph, it is evident that the TV is somewhat "playing around" with 4K content. It is clear that the EOTF curve is significantly below the reference level, leading to an overall dimming of the image compared to the reference. We noticed this effect in previously tested scenes from the movies "Pan" and "Billy Lynn." While it is not a serious problem, it is worth mentioning. It may be of great importance to those looking for a display with the most accurate image reproduction. Despite this error, the image will be more enjoyable for most. Colours are better reproduced, and the overall image quality is significantly improved.

After calibrating the TCL 655 PRO television, a noticeable improvement in white balance can be observed, having completely eliminated the tendency for the screen to have an excessive pink hue, which was previously visible in factory mode. The image has taken on more natural tones, especially in white and bright elements, positively affecting the overall perception of the picture. As for brightness characteristics, the Gamma chart has also improved – the screen is no longer excessively bright, which previously made the image look washed out. Nevertheless, there are still some issues with the EOTF curve that are difficult to eliminate due to the design of the television and its limited number of dimming zones. These limitations prevent achieving ideal results in this regard. However, despite this minor flaw, the overall effect after calibration is truly outstanding, providing high image quality and very good color reproduction.

In the context of smoothing tonal transitions, the Hisense U8NQ television unfortunately does not perform well. The "Smooth and Gradient Image" function does not produce noticeable effects — there is no improvement in any setting, which is disappointing, especially in demanding scenes with subtle tonal transitions.

As for digital processing, or the so-called upscaling, the scene with the model is presented correctly — its outline is clear, without significant cropping. Similarly, thin lines, such as tree branches, have slight jaggedness, but the overall appearance is plastic and soft, which creates a good impression. Unfortunately, there is also an issue with the so-called overscan, which causes cropping of the image at the edges. This can be annoying when watching content such as news, where the lower information bars may be partially invisible.

The TCL 655 PRO television handles tonal transitions in lower-quality materials quite well. The "Gradual Smoothing" feature at a low setting effectively smooths out tonal transitions; however, this comes at the cost of losing some important details, such as the texture of objects. A positive aspect is that it does not negatively affect film grain, which helps maintain the natural look of the image.

In the context of digital processing, the television adds artificial sharpness. This may appeal to users who prefer a more vivid image. However, those who favor a softer, subtler look may find this to be a drawback. Additionally, a downside is the image cropping due to overscan, which limits the field of view and trims the edges of the frame. This can be problematic in certain scenes - e.g., news tickers.

Hisense U8NQ is equipped with a 144 Hz matrix, making it a great choice for sports and gaming. The television will also easily satisfy movie fans, as it features a built-in "Ultra Motion Smoothness" processor that allows you to control the fluidity of the image — you can decide whether you prefer a more "framey" look or a smoother, cinematic effect. This provides great flexibility in adjusting the quality of motion to the individual viewer's preferences.

The TCL C655 PRO TV is equipped with a 4K panel with a refresh rate of 60 Hz, making it ideal for watching movies. Additionally, the "Flicker Reduction" feature allows users to adjust the fluidity of the image, giving them the choice between smoother motion or a cinematic, choppy effect. Moreover, the TV handles lower resolution content well, such as Full HD and 2K, offering a refresh rate of 120 Hz, which will certainly appeal to gamers who can enjoy smoother images, albeit at the cost of lower resolution.

Hisense U8NQ offers everything a gamer may need for comfortable gameplay. The TV supports a refresh rate of 144 Hz, which ensures an incredibly smooth picture, especially in dynamic action games. The VRR (variable refresh rate) feature allows for adjusting the image to varying frames per second, eliminating stuttering and tearing effects, resulting in an exceptionally smooth gaming experience. Additionally, the TV is equipped with the ALLM (automatic low latency mode) feature, which automatically switches the TV to game mode, minimizing input lag. This allows gamers to enjoy responsive gameplay without manually adjusting the settings.

Hisense U8NQ also supports Dolby Vision, which is important for gamers who value high picture quality, high contrast, and deep colours in games that support this format. The TV also has a “Game Bar” — a feature that provides quick access to essential settings during gameplay, significantly enhancing user convenience.

However, it is worth noting that despite its rich features, the Hisense U8NQ does not offer the HGiG standard, which is a popular HDR format in gaming. This may be disappointing for gamers expecting optimal detail reproduction in HDR scenes. Nevertheless, the other features of the TV make the Hisense U8NQ a solid choice for console gaming enthusiasts, offering smoothness, high contrast, and user convenience.

The TCL C655 PRO television offers an almost perfect set of features for gamers, supporting all key technologies that significantly improve the gaming experience. The ALLM feature automatically switches the television to low latency mode, resulting in better responsiveness and minimized signal delays – particularly important in dynamic titles. VRR synchronizes the screen refresh rate with the number of frames generated by the console, eliminating screen tearing and thus guaranteeing smoother gameplay.

Support for Dolby Vision in game mode allows for more detailed color and contrast reproduction in games that support this format, while the Game Bar provides quick access to important settings such as response time or latency level. Unfortunately, this model does not support 4K resolution at 120 Hz, which may disappoint the most demanding gamers. However, for those who can forgo 4K, support for Full HD and 2K at 120 Hz offers exceptionally smooth visuals, making it an attractive alternative for enthusiasts of higher refresh rates.