TCL P755 vs Hisense A6Q

TCL P755 provides average HDR effect quality. The maximum brightness of the television is slightly below 300 nits. Such brightness limits the intensity of bright areas in HDR content. In practice, this means that bright elements may not be sufficiently pronounced, which affects the overall impression of contrast. However, the television offers a wide coverage of the DCI P3 colour gamut, reaching around 93%. As a result, colours are vibrant and saturated, significantly improving colour reproduction quality in HDR content. Despite the limited brightness, the wide colour range allows for richer and more realistic shades.

The Hisense A6Q is unfortunately difficult to recommend for watching HDR content. The main issues are low brightness and rather modest coverage of a wide colour gamut. The measured brightness of around 300 nits simply isn't sufficient for HDR materials to look impressive. In practice, the picture often resembles standard SDR instead of true HDR with clear differences in brightness and dynamics. Additionally, the colours in such materials do not appear as they should. The television does not utilise additional filters such as QLED or PFS LED, and the coverage of the DCI-P3 colour space at around 80% means that some colours look rather washed out. Consequently, some scenes in HDR materials lose intensity and spectacle, making it difficult to speak of a full HDR experience.

The colour reproduction in the P755 in "Movie" mode, although it is the best factory setting, leaves much to be desired. The biggest problem is the white balance, where the graph clearly shows a spike in red and a drop in green. This leads to a shift in colours towards red, making the colours on the screen less natural and potentially looking incorrect, especially in scenes with a white or neutral background. This is confirmed by the "Colour Checker" test, which reveals that the colours are indeed skewed towards red, affecting the realism of the image and reducing the perception of colour depth. In terms of contrast, the gamma chart analysis shows considerable fluctuations, particularly in dark areas of the image, where values drop below the optimal level of 2.4. This results in darker areas being displayed brighter than they should be. Additionally, the EOTF curve, responsible for brightness reproduction, is slightly above the reference curve. The graph shows a slight boost in brightness to around 50%, followed by only a minor decrease. This leads to excessive brightness enhancement in the mid-tones of the image and may result in loss of detail and distortion in brighter scenes.

We conducted the tests in the best available mode, namely Filmmaker, however – as is often the case – this does not mean an ideal image straight out of the box. In the case of Hisense A6Q, this mode clearly "swallowed" too much blue in everyday SDR content. In practice, this led to an image with a yellowed white, particularly noticeable on large, bright surfaces. This is not due to poor assumptions of the Filmmaker mode itself or the vision of filmmakers, but rather the factory settings requiring adjustment.
Furthermore, looking at the saturation characteristics and the gamma curve in SDR, as well as EOTF in HDR content, there is a slight tendency to brighten most scenes. As a result, the image often appears brighter than it should, losing a bit of its naturalness. For this reason, we decided to perform a professional calibration to restore the proper colour balance and a more accurate brightness characteristic.

After calibration, the colour reproduction on the television improves significantly when it comes to SDR content. The colour curves are now close to the ideal value, and the gamma is more stable. Although the drop at the beginning of the graph to value is still present, the overall accuracy of colour reproduction is much better. The "Colour Checker" test shows that most colour samples have errors below level 2, indicating improved colour fidelity. A few deviations are present, but generally, the colours are now more realistic and consistent with reality.

Calibration also brings improvement in HDR content. The white balance has been improved, resulting in a more natural colour reproduction. The EOTF curve, although now closer to the reference curve, still shows a slight boost in brightness at the beginning of the graph. This leads to minor distortions in very bright scenes, but the overall tonal quality and detail have been enhanced. Dynamic tone mapping works more effectively, improving image quality in bright areas and retaining more detail.

Although the device's picture does not achieve complete perfection, calibration brings significant improvement. After adjusting the settings, the television presents itself much better, offering a more realistic and accurate colour reproduction in SDR and HDR content. While some shortcomings can still be noticed, calibration effectively eliminates many previous issues, ensuring better image quality and more natural colours.

The colours after calibration in the Hisense A6Q should be assessed in two ways, as everything depends on the type of content. In the case of SDR material, the effect is truly very good. In everyday programmes, series, and films, it is difficult to spot any serious problems with colours. The yellow tint has been effectively removed, and the television no longer brightens the entire image. As a result, the ColorChecker test showed errors below Delta 2 values, which are already outstanding results, allowing us to speak of very high image quality in standard content. Unfortunately, the situation looks significantly worse in the case of HDR material. Yes, the white balance has been corrected and the EOTF curve has been improved, but the limitations of the panel itself remain insurmountable. The lack of support for a wide colour gamut means the television still generates quite significant colour errors. Certain colours simply cannot be displayed by the screen, making them appear less saturated than they should be. It's a shame because even a simple PFS or QLED filter would significantly improve the final effect. The conclusion is therefore simple – the A6Q is really very well suited for SDR content after calibration, while watching HDR content on it should still be approached with caution.

The "Gradual Smoothing" function works quite well, effectively eliminating visible boundaries between different shades of the same colour. Thanks to it, tonal transitions are smoother. Unfortunately, this function is not available in HDR mode, which may affect the quality of tonal gradations in higher dynamic range materials.

When it comes to image scaling, the television does not perform at its best. There are noticeable edge cuts, particularly evident on the figure of the model and the branches of trees. The blurring of details in these areas affects the overall sharpness of the image. This may be noticeable when watching content in a lower resolution. Moreover, SD quality images are displayed with slight cropping at the top as well as the bottom.

Upscaling on the Hisense A6Q works quite decently for a television in this price range. Materials of lower resolution are correctly "upscaled" to a higher one, and the image remains clear without artificial edge enhancement or the typical "over-sharpening" found in cheap models. Unfortunately, the digital processing is significantly worse. In practice, it is difficult to speak of any advanced artifact smoothing or problematic tonal transition masking. In heavily compressed films – especially those from YouTube – the television practically struggles with reducing compression blocks and unwanted banding, making the imperfections in the material clearly visible. The A6Q scales the image well, but when it comes to digital processing, it leaves the user alone with the quality of the source.

The television offers decent, although not perfect, results in terms of motion fluidity. For films, the television features a “Flicker Reduction” function that allows for motion fluidity adjustment on a scale from 1 to 10. With this option, we can customise the appearance of the image to a cinematic or more theatrical preference (with a slower or faster pace).

The motion fluidity of the Hisense A6Q is… well — quite mediocre. It’s a television with a native refresh rate of 60 Hz in 4K, which means that the motion of objects on the screen doesn’t always look perfectly smooth. In dynamic scenes in movies or sports, it’s clear that this isn’t the strongest feature of this model. The situation improves significantly with 1080p content when connecting a console or computer, as the A6Q can operate even at 120 Hz then. This is a big plus, especially for gamers. Nevertheless, the clarity of motion still leaves much to be desired; blurring is noticeable, and the response time of the panel indicates that it is not one of this television’s strong points.

The device offers a range of features useful for gamers, such as ALLM (Auto Low Latency Mode), VRR (Variable Refresh Rate), Dolby Vision for gamers, and Game Bar. ALLM automatically switches the television to low latency mode, significantly improving response to commands from the controller and minimising input lag. VRR synchronises the screen refresh rate with the number of frames generated by the console, eliminating screen tearing and providing smoother gameplay. Dolby Vision for gamers enhances picture quality, offering better colour and contrast reproduction in games that support this format. The Game Bar feature allows quick access to game settings and monitoring of key parameters such as reaction time.

However, the television has certain limitations. The 60 Hz panel prevents the display of higher refresh rate signals at various resolutions, which may affect the smoothness of the image in dynamic games. Additionally, the lack of support for G-Sync technology for PC may impact gameplay quality on a computer. It is also worth noting that the HGiG mode, which aims to improve picture quality in HDR games, does not function correctly in this model, negatively affecting the visual experience in HDR-supported games.

For such an inexpensive television, the Hisense A6Q can truly surprise with what it offers to gamers. It operates in 4K only at 60 Hz, but when a game switches to performance mode and drops to 1080p, the panel can work even at 120 Hz. This is a significant advantage in this price range, as most titles on consoles don't achieve stable 4K at 120 frames per second anyway. In practice, we are realistically playing at 1080p, and here the A6Q provides very enjoyable gaming experiences. On top of that, there are several features usually found in more expensive models: ALLM, VRR, and Dolby Vision Gaming for Xbox Series X/S. Everything is gathered in one place, in a simple and convenient Game Bar, so there's no need to dig through the entire menu. For such an affordable piece of equipment, it's a really solid set for gamers — perhaps not for the most demanding, but certainly spot on for occasional gaming.