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. While testing various scenes, we noticed that the TV continually tries to balance maintaining adequate brightness and preserving the deepest blacks. In favourable conditions – for instance, during a scene from "The Meg," where the screen is flooded with bright light – this brightness impresses. At 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 against a dark background, the situation looks much worse. The brightness then drops to 200-300 nits, too little to distinguish HDR from regular SDR.

It's clear that the TV is trying, but hardware limitations – primarily the small number of local dimming zones – prevent it from fully spreading its wings. The result can therefore be quite uneven and just as average as in the contrast tests. However, it deserves credit for the impressive coverage of the DCI-P3 colour gamut at 97%. This allows the TV to showcase a wide range of colours, which, in the right scenes, can give us at least a taste of the true HDR effect. It’s a pity that the overall experience isn’t complemented by better brightness and contrast.

The TCL A400 Pro is a moderately bright TV. Its peak brightness reaches about 600 nits. That level already allows for a real HDR effect and in many movies it does produce a noticeably more attractive picture than SDR. However, it is not a level that overwhelms by brightness alone. The A400 Pro is not one of those TVs that "attack" the viewer with a powerful flash in every dramatic scene. The biggest limitation is visible with small bright elements on a dark background. Due to rather aggressive control of the dimming zones, 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. That said, this is not done without reason. The A400 Pro does this to keep blacks as deep as possible and to limit haloing around bright objects. It's a deliberate compromise: the TV more often chooses deeper blacks over maximally bright, point-like highlights. On one hand this is understandable, especially with a limited number of dimming zones, but on the other hand you should be aware that the HDR effect will not always be as strong as the peak brightness alone would suggest.

On the plus side, the colors are worth noting. The PFS LED filter used here, marketed by the manufacturer as QLED, produces suitably saturated colors. Our measurements showed about 94% coverage of the DCI-P3 gamut and about 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 was not without flaws. With standard SDR content, we noticed a clear tendency for an excessive boost in red, which caused the image to appear unnaturally warm. This is particularly evident in the comparison photo included below. On the other hand, when we switched to HDR content, the situation went in the opposite direction. This time blue was dominant, and red was scarce, giving a cool effect, at times even a somewhat "store-like" impression — although not as drastic as in those modes that are actually intended for displaying in exhibitions. As a result, in our colour reproduction tests, these imbalances in colour balance led to significant errors.

Additionally, the TV had issues with rendering brightness characteristics. At lower resolutions, it clearly brightened the darkest elements of the image, and with HDR content, the brightness curve (eotf) did not want to align as it should. Initially, the TV excessively darkened the smallest details and then overly brightened larger areas. Fortunately, the E7NQ PRO provides us with plenty of calibration tools, so knowing the potential, we decided to take matters into our own hands and try to set it up to eliminate these issues.

As standard, we carried out color measurements in the best-calibrated mode, Filmmaker Mode, the one that is supposed to be closest to the creators’ intent. The A400 Pro, of course, also offers other picture modes, but in practice they suffer from much larger color errors and alter the image character more strongly. We won’t go into those modes in detail in this part of the test. So how does the factory color reproduction perform? In short: really very well. In fact, looking at our measurement results, it’s excellent. Both the white balance and the luminance response were set surprisingly precisely. The errors were so small that during testing we genuinely rubbed our eyes in disbelief. Such good out-of-the-box settings don’t happen often, even in TVs operating in Filmmaker Mode. All the more reason to praise TCL, because the A400 Pro right out of the box can produce an image very close to how the source material should look. The results were so good that you could easily think someone had already paid extra attention to that unit and tried to calibrate it.

Our nitpicking really comes down to just one thing. In SDR content the image was slightly brighter than the reference for a dark room, because the factory gamma was set closer to 2.3 than to 2.4. It’s not a big error and most viewers probably won’t even notice it.

However, it should be noted that we’re talking about our specific review sample. With factory colors there can always be some variation between units, production batches, or screen sizes. So we don’t assume that every A400 Pro will look identical straight out of the box.

Thanks to the tools available in E7NQ PRO, we managed to squeeze a quite decent image out of it, especially in the case of 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 manufacturer intended to present. Additionally, we improved the brightness characteristic (Gamma), causing the TV to no longer have a tendency to over-brighten, and everything looks significantly better than before our intervention.

In HDR materials, we also managed to achieve some results, although it is not as rosy here. Indeed, the white balance has approached an acceptable level, but the problem lies elsewhere. It concerns the EOTF curve, which is how the TV manages the brightness and tonality of the image. At first glance, it might seem that the biggest issue pertains only to the mid-tones of the image, which are overly illuminated. However, after more detailed testing and enabling filters to display the EOTF curve, it is evident 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. After our calibration, however, 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 good calibration cannot fully overcome.

Despite its excellent factory tuning, we couldn't resist checking how the TCL A400 Pro would respond to a professional calibration. Since the starting point was so good, we were even more curious whether we could squeeze even more out of this TV. And here we have to boast: we managed to bring our unit to absurdly low color errors. Results below 1 are something you don't see every day, even on very good TVs. Such results are more often associated with professional reference monitors than with a lifestyle TV for the living room. In terms of white balance and color reproduction, the A400 Pro after calibration simply performed outstandingly. The only thing we can pick at after a deeper analysis concerns the brightness behavior. The TV can manipulate luminance levels depending on the content being displayed, and quite often the image is a bit darker than it should be according to the standard. This most likely stems from the way the Mini-LED backlight and local dimming algorithms work in this model. However, that doesn't spoil the overall impression, because in terms of color precision alone the A400 Pro after calibration reached a level we really didn't expect.

Unfortunately, the "smooth and gradient image" feature in Hisense E7NQ PRO does not impress when it comes to smoothing tonal transitions in lower-quality materials. At the lowest setting, the change is hard to notice—it's more of a cosmetic improvement. Switching to "Medium" mode already provides a noticeable effect, but it still isn't anything special. In addition, the television starts to excessively interfere with other image elements, which can look unnatural.

Image scaling is also rather average. On the test screen, where a portrait of a model and text are displayed, slightly jagged edges can be seen, which makes the overall presentation less smooth and aesthetically pleasing than we would expect in this class of device. It's simply hard to speak of truly effective enhancement of lower resolution quality here.

Digital video processing is unfortunately one of the weaker points of the TCL A400 Pro. That doesn't mean the TV performs badly, but it's hard to call it anything clearly above standard. The upscaling itself is adequate: edges are smoothed fairly well, the image doesn't look overly sharp or pixelated, and lower-quality content can be watched without major discomfort. At the same time the overall look is slightly soft and it lacks the precision that the best image processors in more expensive TVs can deliver.

Much worse, however, is its handling of tonal transitions caused by heavy compression. TCL equipped the A400 Pro with a "Gradual Smoothing" feature that in theory should reduce visible color banding and artifacts in lower-quality content. In practice 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's best to leave this feature off. The A400 Pro handles basic image scaling decently, but if you often watch heavily compressed content with visible posterization, this model won't be one of the best choices.

Thanks to its 144 Hz panel, the E7NQ PRO performs excellently with almost every type of content. Whether we are watching fast-paced matches, dynamic games, or action movies, the fluidity of motion leaves a good impression. For 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 intervenes in the presented material, smoothing motion more forcefully, thus minimizing any stutter or micro-cuts. On the other hand, the highest settings may resemble the so-called "soap opera effect," which makes the image look overly smooth, losing some of its cinematic atmosphere. However, with such a scale, we can find the golden mean, adjusting the fluidity of motion 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 used by most consoles today, as well as many sports broadcasts and high-frame-rate content. In this range the TV performs quite well. Motion clarity is really good, especially after properly configuring the motion smoothing. The "Motion Clarity" feature improves smoothness. Its settings include two sliders that let you tailor the motion smoothing to your preferences — separately for lower- and higher-frame-rate material. That way you can achieve either a more cinematic look or a noticeably smoother picture. If you don't want to tweak settings manually, you can use presets such as low, medium, high, cinema, or nature.

If you enjoy switching on your console and immersing yourself in games for hours, the E7NQ PRO is sure to make a strong impression. With its 144Hz refresh rate, gameplay feels impressively smooth, while support for HDMI 2.1 and VRR prevents screen tearing, even during the most action-packed moments. Additionally, ALLM automatically applies the lowest latency as soon as you switch to your console, so there’s no need to tweak the settings manually.

A major plus is the ability to play games in Dolby Vision, enhancing colours and contrast for a more vibrant experience. Hisense has also included a user-friendly game bar, allowing you to monitor key performance stats and adjust settings without leaving the game. The only real drawback is the absence of HGIG support. While not essential, some gamers may miss it if they’re looking for the most accurate representation of a game’s intended visuals. That said, in practice, the E7NQ PRO delivers an excellent gaming experience that’s smooth, responsive, and enjoyable.

When it comes to features for gamers, the TCL A400 Pro performs excellently. The TV has practically everything you can expect from a gaming TV today: 4K support at high refresh rates, VRR, ALLM, correct implementation of HDR formats in games, including Dolby Vision, and HGiG. Because of that it works well with both next-gen consoles and PCs. Another plus is the inclusion of a Game Bar, a special panel with the most important settings for gamers. From it you can quickly check basic signal information, refresh rate, and active features, and also adjust the look and behavior of some settings to your own preferences. This is 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 complain about 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 functions as eARC. In practice this means that if someone wants to connect two next-gen consoles and a soundbar, they may hit some limitations. In that scenario you'll have to either swap devices or use extra equipment, for example an AV receiver or a soundbar with HDMI inputs. Despite this, it's hard not to rate the A400 Pro very highly as a gaming TV. The gaming feature set here is really powerful.