Hisense E7Q / E79Q vs TCL A400 PRO

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.

The TCL A400 Pro is a moderately bright TV. Its peak brightness reaches around 600 nits. That level already allows for a real HDR effect and in many films it does deliver a noticeably more appealing picture than in SDR. However, it’s not a level that dazzles by brightness alone. The A400 Pro is not one of those TVs that bombard the viewer with a powerful flash in every dramatic scene. The biggest limitation is visible with small bright elements on a dark background. Because of fairly aggressive zone control, the TV can significantly reduce their brightness, in extreme cases down to around 100 nits. That means small lights, sparks, stars or single highlights can be much less visible than they should be. It should be added, though, that this isn’t done without reason. The A400 Pro does this to keep black levels as deep as possible and to limit the halo effect around bright objects. It’s a deliberate compromise: the TV more often opts for deeper blacks rather than maximising point highlights. On the one hand this is understandable, especially given a limited number of dimming zones, but on the other you should be aware that the HDR effect won’t always be as strong as the peak brightness alone might suggest.

On the plus side, the colours are a strength. The PFS LED filter used here, marketed by the manufacturer as QLED, delivers suitably saturated colours. Our measurements showed about 94% coverage of the DCI-P3 gamut and around 74% of BT.2020, which is a solid result for this class.

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.

As usual, we carried out colour measurements in the best‑tuned picture mode, Filmmaker Mode, the one intended to be closest to the creators’ intentions. The A400 Pro, of course, also offers other picture modes, but in practice they show much larger colour errors and interfere more with the image character. So we won’t cover them in detail in this part of the review. How does the factory colour reproduction fare? In short: really very well. In fact, looking at our measurements, it’s excellent. Both the white balance and the luminance response were set surprisingly precisely. The errors were so small that during the measurements we genuinely rubbed our eyes in surprise. Such good factory settings don’t happen often, even in televisions running Filmmaker Mode. All the more reason to praise TCL, because the A400 Pro straight out of the box can produce an image very close to how the source material should look. The results were so good you could easily think someone had already given this unit extra attention and tried to calibrate it. Our one bit of nitpicking comes down to a single issue. In SDR material the image was slightly brighter than the reference for a dark room, because the factory gamma was set closer to 2.3 than 2.4. It’s not a large error and most viewers probably won’t even notice it. We should note, however, that we are talking about our specific test unit. There can always be some variation in factory colour between individual units, production batches or screen sizes. We do not assume every A400 Pro will look identical straight out of the box.

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.

Despite the outstanding factory tuning, we couldn't resist checking how the TCL A400 Pro would respond to professional calibration. With such a strong starting point, we were especially curious whether we could squeeze even more from this TV. And here we have to boast: we managed to bring our sample to absurdly low colour errors. Results below 1 are something you don't see every day, even on very good TVs. Such outcomes are more often associated with professional reference monitors than with a lifestyle TV for the living room. In terms of white balance and colour reproduction, the A400 Pro after calibration simply excelled. The only thing we can pick on after closer analysis concerns the brightness response. The TV can vary the luminance level depending on the content being displayed, and quite often the picture is a little darker than it should be according to the reference. This most likely stems from the way the Mini-LED backlight and the local dimming algorithms work in this model. That said, it doesn't ruin the overall impression, because in terms of colour precision the A400 Pro after calibration reached a level that was genuinely hard to expect.

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.

Digital image processing is unfortunately one of the weaker points of the TCL A400 Pro. That does not mean the TV performs badly, but it’s hard to call it anything clearly above standard. The upscaling itself is acceptable: edges are fairly well smoothed, the picture does not look overly sharp or “pixelated”, and lower-quality material can be watched without major discomfort. At the same time the overall image has a slightly soft character and you don’t see the kind of precision that the best image processors in more expensive TVs can offer.

Handling of tonal transitions caused by heavy compression is much worse. TCL equipped the A400 Pro with a “Gradual Smoothing” feature that in theory should reduce visible colour banding and artefacts in lower-quality material. In practice, however, its effectiveness is very limited. It does not improve tonal transitions in any noticeable way, and at higher settings it can further smooth image detail, giving it an artificial, slightly blurred character. For that reason we think it’s best to leave this feature off. The A400 Pro copes decently with basic image scaling, but if you often watch heavily compressed material with visible posterisation, this model will not be one of the best choices.

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.

The TCL A400 Pro is equipped with a 144 Hz panel, but in practice we're most interested in how it performs at 120 Hz. That's the refresh rate most consoles, as well as many sports broadcasts and high-motion sources, are limited to today. In that range the TV performs quite well. Motion clarity is really good, especially after properly configuring the motion smoothing. The 'Motion Clarity' function improves smoothness. Its settings include two sliders that let you tailor the motion smoothing to your preferences, separately for low-frame-rate and high-frame-rate content. This allows you to achieve either a more cinematic look or a noticeably smoother image. If you don't want to fiddle with manual configuration, you can use built-in presets such as Low, Medium, High, Cinema or Nature.

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.

In terms of gaming features the TCL A400 Pro performs brilliantly. The TV has practically everything you’d expect from a gaming TV today: support for 4K at high refresh rates, VRR, ALLM, correct implementation of HDR formats in games, including Dolby Vision, and HGiG. That means it works well with both next‑gen consoles and PCs. Another plus is the inclusion of a Game Bar, a dedicated panel with the most important settings for gamers. From it you can quickly check basic information about the signal, refresh rate or active features, and customise the appearance and behaviour of some settings to your preferences. It’s a solution that may not change picture quality by itself, but it greatly improves the convenience of using the TV while gaming. The only thing to criticise is the number of full HDMI 2.1 ports. The A400 Pro has only two such ports out of four, and one of them also serves as eARC. In practice this means that if you want to connect two next‑gen consoles and a soundbar you may run into some limitations. In that scenario you’ll need to either swap devices or use extra equipment, such as an AV receiver or a soundbar with HDMI inputs. Even so, it’s hard not to rate the A400 Pro very highly as a gaming TV. The gaming feature set here is genuinely powerful.