TCL C655 Pro vs Hisense S7NQ CanvasTV

In the HDR effect quality category, the television TCL 655 PRO shows decent capabilities, achieving 550 nits of peak brightness. This allows for enjoying HDR effects, which can be clearly seen in scenes such as the first one from the movie Life of Pi or the final shot from The Meg. However, the limited number of dimming zones causes some issues. 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 more. The dimming algorithm aims for deep blacks, but at the cost of brightness – which at those moments can cause a drop in brightness of even half. In these more challenging scenes with small elements, it's hard to find any praise, and the HDR effect resembles SDR. Nevertheless, the coverage of the colour palette deserves recognition, which, like in the version without the PRO suffix, is at a very good level.

When it comes to the brightness of the television and how it handles bright elements while watching films, it's just average – similar to the contrast. The average brightness level of the Hisense S7NQ is around 500 nits. This is a value that allows you to feel the hints of true HDR, but it's definitely not enough to speak of remarkable effects. However, the television should be praised for its colour gamut coverage – films look very colourful and vibrant. Thanks to the use of a PFS LED (QLED) coating, the device is able to cover more than 90% of the DCI-P3 colour gamut and over 72% of the wider BT.2020 palette. For a television of this class – these are really very good results.

Each of our TV tests is conducted in movie mode, which usually offers the best colour reproduction. However, even this mode is not free from issues, as we noted in 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 overly emphasise the colour blue. As a result, the image can give a sense of artificial sharpness, which proves to be uncomfortable for the eyes over a longer period. The brightness characteristics also leave much to be desired. The Gamma chart indicates serious difficulties with excessive brightening, making the overall presentation appear washed out. Additionally, the EOTF curve reveals significant problems with reproducing very small elements – they are overly dimmed, as we have detailed in the paragraph regarding HDR effects.

Let's check how the Hisense S7NQ CanvasTV performs in terms of colour reproduction in its best factory mode, which is Filmmaker. Right from the start, it’s clear that it’s definitely better than in dynamic or standard mode, but there are still a few things to nitpick. In terms of image quality from HD signals, the colours are slightly skewed – there’s a dominance of cooler blue tones and a lack of red. This makes the image seem a bit too cool.

A similar effect is noticeable in 4K content, but it’s more pronounced there. The excessive exposure of blue tones and lack of red makes the image appear distinctly cold. However, the biggest issue with this TV isn’t the colours themselves but the way brightness is managed. The unit we tested slightly increased brightness compared to the reference value. The result of this is indeed better visibility of details, but at the cost of significantly lighter blacks – which makes the entire image seem more "flat."

A similar phenomenon was observed in the 4K signal – the slightly inflated curve at the beginning of the EOTF graph indicates that the TV has a tendency to overexpose certain scenes. Fortunately, this effect can be improved through professional calibration, which we will discuss in the next point.

After calibrating the TCL 655 PRO television, there is a noticeable improvement in white balance, where the tendency for the screen to be overly pink has been completely eliminated, which was previously noticeable in factory mode. The picture has taken on more natural tones, especially in white and bright elements, which positively affects the overall image perception. Regarding brightness characteristics, the Gamma chart has also improved – the screen is no longer excessively bright, which previously made the image appear washed out. Nevertheless, there are still some issues with the EOTF curve, which are difficult to eliminate due to the television's construction and its limited number of backlight zones. These limitations prevent achieving perfect results in this regard. However, despite this minor fault, the overall effect after calibration is truly outstanding, providing high picture quality and very good colour reproduction.

The results we achieved after calibrating the Hisense S7NQ are really very good. Thanks to the calibration, we managed to eliminate excessive blue tone exposure and deficiencies in red with HD signals. A similar, albeit slightly weaker effect was also achieved with 4K HDR content. Brightness management in HD materials has also improved – the television no longer struggles with brightening the image "overall".

However, there are things that cannot be circumvented. The character of the EOTF curve has hardly changed, and the lack of local dimming means that the smallest elements on the screen will always be slightly overexposed. You just have to come to terms with this when choosing a television with a similar type of backlighting. Nevertheless, the final effect is very good and should fully satisfy the vast majority of users.

The TCL 655 PRO television handles tonal transitions quite well in lower-quality material. The "Gradual Smoothing" feature at low settings effectively smooths tonal transitions, but this comes at the cost of losing some essential details, such as the texture of objects. On the plus side, it doesn't negatively affect film grain, which helps maintain a natural look to the image.

In the context of digital processing, the television adds artificial sharpness. This may appeal to users who prefer a bolder image. However, individuals who favour a softer, more subtle look may find this a drawback. Additionally, a downside is the image cropping due to overscan, which limits the field of view and cuts off the edges of the frame. This can be problematic in certain scenes - for example, news tickers.

Equally important is how the television handles tonal transitions with a poorer signal – for example, in older films, on television, or on YouTube. Unfortunately, despite the presence of the “Smooth and Gradient Picture” feature, which was supposedly meant to improve this aspect, its functionality is really poor. It’s barely noticeable that it has any real impact on the visibility of colour transitions.

The image scaling is also disappointing. Yes, you can see that the television is trying to “pull up” the quality, but the end result is far from ideal. The image often appears slightly jagged, which is particularly noticeable in the example of tree branches in the background. Additionally, the Hisense S7NQ has a clear tendency to crop the image at lower resolutions, which could result in missing subtitles in the news or finer details in the image.

The TCL C655 PRO television is equipped with a 4K display with a refresh rate of 60 Hz, making it ideal for watching movies. Additionally, the "Flicker Reduction" feature allows for adjusting the smoothness of the picture, giving the user the choice between smoother motion and a cinematic, frame-by-frame effect. Furthermore, the television performs well with lower resolution content, such as Full HD and 2K, offering a refresh rate of 120 Hz, which will surely appeal to gamers who can enjoy a smoother image, albeit at the cost of lower resolution.

When it comes to motion fluidity, the television performs really well. Although the S7NQ was primarily designed for displaying static elements – such as images – the manufacturer has used a panel with a refresh rate of 144 Hz. As a result, sports or games look really good on it.

For content that is not recorded at a high frame rate, the manufacturer has provided two features that allow you to adjust the picture to your own preferences. “Motion blur reduction” and “blur” operate on a 10-point scale, enabling a choice between a more cinematic image – with characteristic frame jumps – and a smooth effect reminiscent of a “soap opera.” How to set this up? That’s a personal choice – we leave the decision to you.

The TCL C655 PRO TV offers an almost perfect set of features for gamers, supporting all key technologies that significantly enhance gameplay comfort. The ALLM feature automatically switches the TV to low-latency mode, improving responsiveness and minimising signal delay – particularly important in fast-paced titles. VRR synchronises the screen refresh rate with the frame rate generated by the console, eliminating screen tearing and ensuring smoother gameplay.

Support for Dolby Vision in game mode enables more detailed colour and contrast representation in games that support this format, while the Game Bar provides quick access to essential settings, such as response time and latency level. Unfortunately, the model does not support 4K resolution at 120 Hz, which may disappoint the most demanding gamers. However, for those willing to forgo 4K, support for Full HD and 2K at 120 Hz offers exceptionally smooth visuals, making it an attractive alternative for high refresh rate enthusiasts.

Even though the S7NQ is an "image" type television, you can actually play games on it. Really. It has practically everything (except for HGiG mode) that a modern gaming television needs. The 144 Hz panel and two full HDMI 2.1 ports allow for seamless connection of two consoles, such as the PlayStation 5 or Xbox Series X/S.

The television supports Automatic Low Latency Mode (ALLM) and Variable Refresh Rate (VRR) without any stutters or issues. It also handles high frame rates at lower resolutions without any trouble. A shoutout to Hisense for the very attractive Game Bar – it displays all available image options, and additionally, we have the ability to enlarge the minimap or turn on the crosshair (because sometimes someone might actually want to "aim" 😉).

The only missing element – as we mentioned earlier – is the lack of proper implementation of HGiG mode. This is the feature responsible for automatically setting the image in games as the developers intended. It’s a shame because it's the only thing that separates the Hisense S7NQ from being a full-fledged gaming "monster".