TCL C75B vs Hisense E7Q / E79Q

During our brightness test, the TCL C75B "spat out" around 380 nits of brightness. We recorded similar results while watching most of the films we tested. These can be considered average – the TV performs decently in this segment, but around 400 nits is definitely too low to fully experience the magic of HDR effects. Of course, such results are better than those of budget models, which can achieve nearly half the brightness values. However, for HDR enthusiasts seeking stronger lighting effects and greater realism, the C75B may prove insufficient. On the plus side, it's worth mentioning the coverage of the DCI-P3 colour gamut at 95%. This is a very good result that easily suffices to enjoy a wide range of colours in content available on popular streaming platforms. Vivid and rich colours are definitely a strong point of this model.

Hisense E7Q / E79Q is a mid-brightness TV, with a peak luminance level of around 350-380 nits. This is the absolute minimum that allows viewing HDR content in a way that's close to the creators' intentions, though without a distinct "wow" effect. The results of synthetic tests on white test patterns were confirmed in practice – in movie scenes, the bright parts of the image are stable and fairly even, but it's hard to talk about a true "burst of light" here. In everyday use, such as when watching Netflix or YouTube, the HDR effect is acceptable and is more than sufficient for most users. However, it must be said clearly – this is not the level of top-end screens, and one shouldn't expect that at this price. Fortunately, the Hisense E7Q / E79Q has an advantage that allows it to score quite a few points: it's a QLED panel of the PFS LED type, using an additional phosphor layer that improves colour reproduction. The measured range of the DCI-P3 colour gamut is around 92%, which means that the colours in most scenes are vibrant, well-saturated, and pleasing to the eye, especially for this price bracket.

TCL C75B offers various picture modes, but in our opinion, the best choice is the “Film” mode. Although its settings are quite decent, the TV struggles with certain colour reproduction issues. In tests, we noticed that the image had a noticeably pinkish hue compared to what could be considered correct. This effect was particularly evident in skin tones, which appeared unnaturally flushed. The main culprit of this phenomenon turned out to be the white balance, characterised by an excess of blue and red in both HD and 4K HDR materials.

An additional problem was the way brightness was reproduced. The gamma, which is responsible for the visibility of details in darker materials, was definitely boosted, causing details in the darkest parts of the screen to be invisible, disappearing into complete black (e.g., the bottom part of the screen in the comparison image - the area around the actress's ear). The situation was similar on the EOTF curve, which was below the correct value, suggesting that a similar issue may be encountered in 4K HDR content.

Thanks to our experience and the appropriate tools, we decided to take matters into our own hands and check how much could be extracted from this model after professional calibration. The details are described in the next section.

In Filmmaker mode, the Hisense E7Q / E79Q television really managed to impress. After the first measurements, it turned out that the white balance was quite well tuned, with the only minor deviation being a slight tendency towards a purple hue, which we mentioned earlier. However, this did not significantly impact the overall character of the image – it remained cohesive and pleasant to view. A much bigger issue was the brightness characteristics (gamma) in SDR content and the EOTF curve in HDR films. The television clearly brightened the image, flattening contrast and taking away depth. Gamma values could drop from the reference 2.4 down to around 1.9, making the image look as though it was covered with a thin, milky layer. Fortunately, this is a problem that can be relatively easily corrected through calibration.

After calibration, TCL C75B has clearly improved when it comes to colour reproduction. Although the TV doesn't offer too many options for adjusting the white balance, we managed to improve its settings quite a bit. As a result, the image is no longer overly pink, and the colours now look much more natural and harmonious.

The gamma jump that was previously an issue hasn't completely disappeared, but we were able to significantly reduce it. This has made details in dark scenes more visible – both in HD and 4K HDR content.

Unfortunately, the lack of local dimming is still noticeable. The 'blooming black' effect remains, but that's a limitation of the display itself. Still, the colours post-calibration look significantly better, and the image is much more pleasant to watch.

The biggest beneficiary of calibration in the case of the Hisense E7Q / E79Q was undoubtedly the SDR mode. It managed to achieve almost perfect image quality – most of the errors in the Color Checker test dropped below a value of 3, and often even 2, which is a remarkable result for this class of equipment. The biggest improvement came from aligning the brightness characteristic (gamma), which made the image no longer look blown out and regained natural depth. In HDR content, it was also possible to improve the colours and eliminate the purple tint that we mentioned earlier, but errors in the Color Checker measurements were still noticeable. This is due to the fact that – as is often the case with Hisense televisions – the screen manipulates brightness quite strongly, overexposing some colours. This was also indicated by the EOTF curve, which was slightly above the reference values, suggesting these minor issues with excessive brightening. Despite this flaw and the construction limitations that arise with HDR content, the Hisense E7Q / E79Q gained quite a bit after calibration. In everyday use, the television presents a coherent, natural, and pleasant-to-the-eye image, and the difference compared to the factory settings is indeed huge.

TCL C75B has a feature for smoothing tonal transitions, but unfortunately, we cannot praise it. Regardless of the selected level – low or high – tonal transitions in older materials remained visible, as if the feature wasn’t working at all. It’s hard to say anything positive about it, as in practice it seems completely useless.

Image scaling is better. The TV handles it quite decently, although on thinner elements, like branches in the background, you can see slight jaggedness. However, this is not something that significantly hinders everyday viewing.

Unfortunately, a bigger problem turned out to be overscan, or cropping of the image edges. In our tests, it happened that news ticker or other elements close to the edge of the screen were cut off. This is definitely something to pay attention to, especially if we use the TV for watching news programs or content with text on the screen.

In the case of Hisense E7Q / E79Q, upscaling and digital image processing are not the strongest points of this television. It is evident that the manufacturer has opted for simplicity rather than advanced image processing algorithms. The television does not offer any features that smooth tonal transitions or systems that enhance image clarity, which makes lower resolution materials look quite raw. Subtle compression edges can be seen on the screen, which better processors in other models can effectively hide.

During the testing of HD materials, we noticed that the E7Q tries to artificially boost detail, which sometimes works and other times has the opposite effect – the image becomes soft, slightly blurred, and at times even "watery." There is no aggressive sharpening that ruins naturalness, but there is also a lack of finesse in detail integration that better image processors provide.

TCL C75B definitely has something to offer gamers. The television is equipped with a panel that can display images with a refresh rate of 144 Hz in 4K, and even 240 Hz in Full HD. These are really impressive results, especially for a model from the budget range.

On top of that, there are features for improving smoothness and reducing motion blur in films. The "Motion" option allows for precise adjustment of the effect on a 10-point scale, providing significant personalisation possibilities – everyone can set the smoothness to their liking.

Hisense E7Q / E79Q is a television with a 60 Hz screen, so sports fans in 4K may feel a slight disappointment – you simply won’t see such smooth images here as in more expensive models with higher refresh rates. Fortunately, when it comes to movies, the situation is much better. Cinematic materials recorded at 24 frames per second can be displayed here using a motion smoothing feature, allowing the user to adjust the picture to their own preferences – more cinematic with visible frames or smoother, in a theatrical style.

TCL C75B is undoubtedly a television designed with gamers in mind. It has almost everything needed for even the most demanding console users. With the implementation of full bandwidth HDMI 2.1, the TV supports features like ALLM (automatic low latency mode) and VRR (variable refresh rate) – operating within the full capabilities of the TV, up to 240 Hz in Full HD resolution.

Additionally, the television supports advanced HDR technologies, including Dolby Vision and HGiG, which allows for even better detailing in HDR-optimised games. C75B is also equipped with a very convenient interface for gamers in the form of Game Bar, where you can check all key parameters such as refresh rate, input lag, or picture settings – all just a click away.

In one sentence: C75B is a great choice for gamers, offering a wide range of features that fully enable enjoyment of the capabilities of modern consoles and games.

Hisense E7Q / E79Q is a really good TV for gamers, even though it doesn’t support 4K signal at 120 Hz. However, the manufacturer has included a set of features that until recently could only be found in more expensive models. There's ALLM, which is auto-switching to low latency mode, allowing the TV to activate game mode with very low input lag automatically. We also have VRR, working up to 60 Hz – while this may not look impressive on paper, in practice it is fully sufficient, as most console games don’t exceed this limit anyway. All these settings can be quickly found in the Game Bar panel, a convenient menu created specifically for gamers. From this level, you can change picture modes, turn on a frame counter, or even… an on-screen crosshair – in the Vidaa system amusingly called a “target point,” which is the result of a clumsy translation from the Chinese manufacturer.

Special praise should go to the ability to play in 1080p at 120 Hz, which significantly improves the fluidity and responsiveness of the image. This means that if someone wants to play a few titles at a higher refresh rate, they can simply lower the resolution and enjoy much smoother motion. Despite the lack of 4K@120Hz, the Hisense E7Q / E79Q really performs well as a gaming TV – especially for those who aren’t looking for perfection but a solid and fast screen for everyday gaming.