Hisense E7NQ PRO vs TCL A400 PRO

Based on the luminance chart, which indicates around 550 nits, it can be considered that Hisense E7NQ PRO theoretically has the potential to somewhat "enchant" us with its HDR image. Testing various scenes from movies, we noticed that the television continually tries to balance between maintaining appropriate brightness and preserving the deepest blacks. In favourable conditions – such as in a scene from “The Meg”, where the screen is flooded with bright light – this brightness can indeed impress us. At such moments, we feel that HDR actually adds that "something" to the image. Unfortunately, when difficult shots with fine, bright elements on a dark background appear on the screen, the situation looks much worse. Brightness then drops to 200-300 nits, which is definitely too little to really distinguish HDR from standard SDR.

It is clear that the television is trying, but the hardware limitations – mainly the small number of local dimming zones – prevent it from fully spreading its wings. The end result can therefore be quite inconsistent and as average as the contrast tests. On the plus side, it deserves credit for its impressive coverage of the DCI-P3 colour gamut at 97%. This allows the television to present a truly wide range of colours, which, in the right scenes, can give us at least a glimpse of the real HDR effect. It’s just a shame that the whole picture isn't complemented by better control of brightness and contrast.

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.

When we took our copy of Hisense E7NQ PRO out of the box, we immediately started checking the available picture modes. Among them, the Filmmaker mode seemed the most promising, although it wasn't without its flaws. With standard SDR content, we noticed a clear tendency to overemphasise red, making the picture appear unnaturally warm. This was particularly evident in the comparison photo attached below. Conversely, when we switched to HDR content, the situation took a turn in the opposite direction. This time, blue was dominant, and there was hardly any red, resulting in a cool, at times almost "store-like" appearance — although not as drastic as in modes specifically designed for showcasing in displays. As a result, in our tests assessing colour reproduction, these disturbances in colour balance led to significant errors.

Additionally, the television had trouble reproducing brightness characteristics. At lower resolutions, it clearly brightened the darkest elements of the image, and with HDR content, the brightness curve (eotf) simply wouldn't align as it should. Initially, the television excessively darkened the smallest details, only to then over-brighten larger areas. Fortunately, the E7NQ PRO provides us with a lot of calibration tools, so knowing there was potential within it, we decided to take matters into our own hands and try to set it up to eliminate these issues.

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.

Thanks to the tools available in E7NQ PRO, we've managed to squeeze a pretty decent image out of it, especially with lower quality content. After fine-tuning the white balance of the SDR materials, the colours look much more natural, and what we see on the screen seems closer to the vision the producer intended to present. Additionally, we've improved the brightness characteristics (Gamma), so the TV no longer tends to over-brighten, and everything looks noticeably better than before our intervention.

With HDR materials, we also achieved some improvements, although it's not as rosy here. Yes, the white balance has approached an acceptable level, but the problem lies elsewhere. It's about the EOTF curve, which is how the TV manages brightness and tonality of the image. At first glance, one might think that the biggest issue concerns only the mid-tones, which are overly brightened. However, after more detailed testing and activating the EOTF curve visualisation filters, it becomes clear that the receiver has a tendency to brighten the entire screen. This seems to be a limitation due to the small number of local dimming zones and generally modest brightness management capabilities. Such hardware limitations are simply insurmountable. Nonetheless, after our calibration, the image is noticeably better than at the start. One just needs to be aware that in terms of contrast and brightness management, this model has its limits, which even a good calibration cannot fully overcome.

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.

When it comes to the tonal transition smoothing function in lower quality materials, the “smooth and gradient image” feature in Hisense E7NQ PRO unfortunately does not impress. At the lowest setting, the change is barely noticeable – it's more of a cosmetic improvement. Switching to “Medium” mode does produce a noticeable effect, but it's still nothing special, and the TV starts to excessively interfere with other elements of the image, which can look unnatural.

Image scaling is also rather average. On the test screen, where a portrait of a model and text are displayed, there are slight frays at the edges, making the overall presentation less smooth and aesthetic than we would expect in this class of device. It's just hard to talk about really effective improvement of lower resolution quality here.

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.

Thanks to the use of a 144 Hz panel, E7NQ PRO performs exceptionally well with almost any type of content. Whether we're watching fast-paced matches, dynamic games or action films – the fluidity of motion leaves a good impression. When it comes to movies, the manufacturer has equipped the TV with two key tools: “motion blur reduction” and “judder reduction.” Each of these functions can be adjusted on a scale from 1 to 10.

At lower values, the processing is subtle, barely noticeable, and gently smooths motion without ruining the cinematic character of the image. The higher we move up the scale, the more clearly the TV interferes with the presented material, smoothing motion more aggressively, thereby minimising any judders or micro-cuts. Conversely, the highest settings can resemble the so-called “soap opera effect,” which makes the image look overly smooth, slightly losing its cinematic atmosphere. Thanks to this scale, however, we can find a happy medium, adjusting motion fluidity to our own preferences.

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.

If we sometimes like to turn on the console and immerse ourselves in the world of games for long hours, E7NQ PRO can make a really good impression. Thanks to the 144 Hz refresh rate, the gameplay is surprisingly smooth, and support for HDMI 2.1 and VRR ensures that the image doesn't "tear" even during the most dynamic actions. Additionally, there's ALLM, which automatically sets the lowest latency as soon as we switch to the console – so we don’t have to fiddle around in the options ourselves.

A big plus is also the ability to launch games in Dolby Vision, which makes colors and contrast simply look better. Hisense has also included a clear "gamebar," allowing us to continuously monitor the key parameters and change settings without leaving the game. The only thing we might slightly regret is the lack of HGIG support. It may not be a crucial element, but for some gamers, it can matter if they aim for the most faithful reproduction of the creators' vision. Nevertheless, in practice, the E7NQ PRO performs excellently and delivers truly enjoyable gaming experiences.

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.