Hisense E7NQ PRO vs TCL A400 PRO

Based on the luminance chart, which indicates around 550 nits, it can be said that Hisense E7NQ PRO theoretically has the potential to somewhat "magically" enchant us with its image in HDR. While testing various scenes from films, we noticed that the television continually tries to balance maintaining appropriate brightness with preserving the deepest blacks possible. In favourable conditions – for instance, during a scene from “The Meg,” where the screen is flooded with bright light – this brightness can indeed impress us. In such moments, we feel that HDR actually adds that "something" to the image. Unfortunately, when more challenging shots appear on the screen with small, bright elements on a dark background, the situation looks significantly worse. The brightness then drops to 200-300 nits, which is decidedly too little to truly distinguish HDR from standard SDR.

It is clear that the television tries, but hardware limitations – mainly the limited number of local dimming zones – prevent it from fully spreading its wings. The final effect is therefore often quite uneven and just as mediocre as in the contrast tests. However, it deserves credit for its impressive coverage of the DCI-P3 colour gamut at 97%. Thanks to this, the television can display a truly wide range of colours, which, in suitable scenes, can give us at least a taste of the true HDR effect. It’s just a shame that the overall experience is not 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 produce a noticeably more attractive picture than in SDR. However, it is not a level that overwhelms with sheer brightness. The A400 Pro therefore isn’t one of those TVs that ‘attack’ the viewer with a powerful flash in every eye-catching scene. The biggest limitation is seen with small bright elements on a dark background. Because of fairly aggressive local dimming control, the TV can significantly reduce their brightness, in extreme cases even to around 100 nits. This means that small lights, sparks, stars or individual highlights can be much less visible than they should be. It’s worth adding, however, that this isn’t without reason. The A400 Pro does this to maintain as deep a black level as possible and to limit the halo effect around bright objects. So it’s an intentional compromise: the TV more often opts for deeper blacks rather than maximally bright, point-like highlights. On one hand this can be understood, especially given the 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, allows for suitably saturated colours. Coverage of the DCI-P3 gamut measured around 94%, and BT.2020 around 74%, which is a solid result for this class.

When we took our copy of Hisense E7NQ PRO out of the box, we immediately began to check the available picture modes. Among them, the Filmmaker mode seemed the most promising, although it too was not without its flaws. With standard SDR content, we noticed a clear tendency for excessive red enhancement, which made the image unnaturally warm. This was particularly evident in the comparative photo attached below. Conversely, when we switched to HDR content, the situation went in the opposite direction. This time, blue was dominant, and red was scarce, resulting in a cool effect, at times almost "shop-like" — although not as drastic as in those modes that are actually intended for display in exhibitions. As a result, in our tests assessing colour reproduction, these disturbances in colour balance led to significant errors.

Additionally, the television had issues with reproducing brightness characteristics. At lower resolutions, it noticeably brightened the darkest elements of the image, and with HDR content, the brightness curve (eotf) simply wouldn't conform as it should. Initially, the television excessively darkened the smallest details, only to then overly brighten larger areas. Fortunately, the E7NQ PRO provides us with plenty of calibration tools, so knowing that there is potential within it, we decided to take matters into our own hands and try to adjust it to eliminate these problems.

As standard, we performed colour measurements in the best‑tuned Filmmaker Mode, the mode that is designed to be closest to the creators' intentions. The A400 Pro of course also offers other picture modes, but in practice these come with considerably larger colour errors and interfere more with the character of the image. Therefore we will not deal with them in detail in this part of the test. So how does the out‑of‑the‑box colour reproduction fare? In short: really very good. Actually, looking at our measurement results, downright excellent. Both the white balance and the luminance response were set surprisingly precisely. The errors were so small that during measurements we genuinely rubbed our eyes in amazement. Such good factory settings do not happen often, even in TVs operating in Filmmaker Mode. All the more credit is due to TCL, because the A400 Pro right out of the box can deliver an image very close to how the source material should look. The results were so good that one could easily think someone had already given this unit extra attention and tried to calibrate it.

Our nitpicking really comes down to just one thing. In SDR content the image was slightly brighter than the dark‑room reference intends, because the factory gamma was set closer to 2.3 than to 2.4. This is not a large error and most viewers will probably not even notice it.

It should, however, be noted that we are talking about our specific test sample. With factory colours there can always be some variation between units, production batches or screen sizes. We do not assume, therefore, that every A400 Pro will look identical straight out of the box.

Thanks to the tools available in E7NQ PRO, we managed to extract quite a decent image from it, especially with lower quality content. After refining 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 that the manufacturer intended to present. Additionally, we improved the brightness characteristic (Gamma), which means the television is no longer prone to excessive brightening, and everything presents itself distinctly better than before our intervention.

We also managed to achieve some results with HDR materials, although it isn’t quite as rosy here. Indeed, the white balance has approached an acceptable level, but the problem lies elsewhere. It concerns the EOTF curve, which is the way the television manages brightness and tonal range of the image. At first glance, it might seem that the biggest issue only relates to mid-tones being overly brightened. However, after more detailed testing and enabling the filters for displaying the EOTF curve, it becomes apparent that the receiver tends to brighten the entire screen. This appears to be a limitation arising from the small number of local dimming zones and generally modest brightness management capabilities. Such hardware limitations are simply insurmountable. Despite this, after our calibration, the image is noticeably better than at the outset. One just needs to be aware that in terms of contrast and brightness management, this model has its limits, which even good calibration cannot fully overcome.

Despite its superb factory calibration, we couldn't resist checking how the TCL A400 Pro would respond to professional calibration. Since the starting point was so good, we were all the more curious whether there was anything more to be had from the TV. And here we must boast: we managed to reduce our unit's colour errors to absurdly low levels. Measurements below a value of 1 are not something you see every day, even in very good TVs. Such results are more commonly 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 therefore simply performed exceptionally well after calibration. The only gripe we have after closer analysis relates to the luminance behaviour. The TV adjusts luminance depending on the content being displayed and quite often the picture is slightly darker than the reference calls for. This is most likely due to the way the Mini-LED backlight and local dimming algorithms operate in this model. However, this does not spoil the overall impression, because in terms of colour accuracy alone the calibrated A400 Pro showed a level that was really hard to expect.

When it comes to the function of smoothing tonal transitions 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 hard to notice at all – it is rather a cosmetic improvement. Switching to "Medium" mode yields a noticeable effect, but it is still nothing special, and in the process, the television begins to excessively interfere with other elements of the image, which can look unnatural.

Moreover, image scaling is rather average. On the test screen, where a portrait of a model and text are displayed, slight jagged edges are visible, making the overall appearance less smooth and aesthetically pleasing than one would expect in this class of device. It's simply difficult to talk about truly effective improvement in the quality of lower resolution.

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 is hard to call it anything clearly above average. The upscaling itself is adequate: edges are smoothed fairly well, the picture does not look overly sharp or "pixelated", and lower-quality content can be watched without much discomfort. At the same time, the overall image is slightly soft and lacks the precision offered by the best image processors in more expensive TVs.

Much worse, however, is how it handles tonal transitions caused by strong signal compression. TCL has equipped the A400 Pro with a "Gradual Smoothing" feature that, in theory, should limit visible colour banding and artifacts in lower-quality material. In practice, though, its effectiveness is very limited. It does not improve tonal transitions in any noticeable way, and at higher settings it can also smooth out image details, giving the picture an artificial, slightly blurred character. For that reason, we think it is best to leave this feature off. The A400 Pro copes decently with basic image scaling, but if you often watch heavily compressed content with noticeable posterisation, this model will not be among the best choices.

Thanks to the use of a 144 Hz panel, E7NQ PRO performs excellently with nearly every type of content. Whether we are watching fast-paced matches, dynamic games or action films – the smoothness of motion leaves a good impression. When it comes to films, the manufacturer has equipped the television 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 out motion without compromising the cinematic quality of the image. The higher we move up the scale, the more the television interferes with the presented material, smoothing out motion more intensely, and consequently – minimising any judders or micro-cuts. Conversely, the highest settings can resemble the so-called "soap opera effect", which makes the image appear excessively smooth, slightly losing its filmic atmosphere. However, with such a scale, we can find a happy medium, adjusting the smoothness of motion to our own preferences.

The TCL A400 Pro is equipped with a 144 Hz panel, but in practice we are most interested in its behaviour at 120 Hz. That is the frequency most consoles are limited to today, as well as many sports broadcasts and high-frame-rate content. At that rate the TV performs quite well. The sharpness of moving objects is really good, especially after properly configuring the motion smoothing. The "Motion Clarity" function is responsible for improving smoothness. Its settings include two sliders that let you tailor how the motion smoothing operates to your preferences, separately for lower and higher frame-rate material. This makes it possible to achieve both a more cinematic look and a noticeably smoother picture. Those who do not want to fiddle with manual configuration can use presets such as low, medium, high, cinema or nature.

If we sometimes enjoy turning on the console and immersing ourselves in the world of games for long hours, E7NQ PRO can make quite an impressive impact. Thanks to the 144 Hz refresh rate, gameplay is surprisingly smooth, and support for HDMI 2.1 and VRR ensures that the picture 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 with the options ourselves.

A major plus is also the ability to run games in Dolby Vision, making colours and contrast simply look better. Hisense has also added a clear 'gamebar', allowing us to constantly monitor the most important parameters and change settings without leaving the game. The only thing we might regret a bit is the lack of HGIG support. While it may not be a crucial element, it could matter to some gamers aiming for the most faithful representation of the creators' vision. Nevertheless, in practice, the E7NQ PRO performs excellently and provides truly enjoyable gaming experiences.

In terms of features for gamers the TCL A400 Pro performs brilliantly. The TV has practically everything you can 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-generation consoles and a PC. Another plus is the presence of the Game Bar, a special 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 also adjust the appearance and behaviour of some settings to suit your preferences. This solution may not change picture quality by itself, but it greatly improves the convenience of using the TV while gaming.

The only thing to complain about is the number of full HDMI 2.1 ports. The A400 Pro has only two such connectors out of the four available, and one of them also serves as eARC. In practice this means that if someone wants to connect two next-generation consoles and a soundbar, they may run into some limitations. In that scenario you will have to either swap devices or use additional equipment, such as an AV receiver or a soundbar with HDMI inputs. Even so, it is hard not to rate the A400 Pro very highly as a TV for gamers. The gaming feature set here is truly powerful.