LG UA75006LA (IPS) vs TCL A400 PRO

It looks even more modest in the version with an IPS panel, where the peak brightness only reaches 250 nits. In practice, this means that a real sense of HDR effect is out of the question, and the materials being viewed resemble regular SDR. Similar to VA panels, the image behaves stably across most test patterns, but in demanding scenes with fine details, the television tends to slightly dim the picture. As a result, blacks appear a bit better, but at the cost of losing detail in bright elements. The absence of additional colour filters is also noticeable here. The UA7500 in the IPS version is neither a QLED nor a PFS LED panel, and the DCI-P3 colour gamut stops at 80%, which means that HDR films lack significant colour depth and appear quite flat.

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.

The Filmmaker mode on the LG UA7500 performs better than you might expect from such a budget television, but let’s not get carried away with admiration. The picture is put together quite sensibly and at first glance is not irritating; however, its weaknesses quickly become apparent. This is most noticeable in scenes with bright points – lamps in the background or reflections of light on skin are clearly oversaturated. The faces of characters often appear unnatural, as if they have been "blown out." Additionally, the default gamma setting brightens even the slightest details and causes the picture to lose subtlety in the darker areas. That said, for its price range, the UA7500 in factory mode provides a pretty decent starting point. However, it is clear that without additional adjustment, these issues won't be avoided, which is why – as with other televisions – we decided to see what could be achieved after 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 improvement we noticed was when calibrating the mode intended for everyday SDR content. We managed to smoothly adjust the white balance in an acceptable manner and tame the issue of excessive brightening of small elements due to the gamma characteristics. As a result, the image gained consistency and a naturalness that was lacking in the factory settings. After such a correction, we can confidently say that for everyday television content, programmes, or materials from YouTube, the LG UA7500 performs really well – especially after professional calibration. The situation is somewhat different for HDR content. Here, calibration did manage to tame the white balance and slightly improve brightness management, however, the design limitations are immediately apparent. The lack of additional filters that expand the colour palette means that the most vibrant colours appear flat, and the image lacks the intensity one would expect from good HDR. In SDR, the UA7500 performs quite well, but in HDR – despite the corrections – it remains far behind, and this is a characteristic that one must accept when choosing this television.

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.

The version with the IPS panel performed noticeably worse here. Image scaling was uneven – this was especially evident in lower quality materials, where edges became jagged and the image looked less detailed. At times, there was also a sense of slight blurriness, which took away sharpness and made the overall picture seem less refined than in the VA version. The tonal smoothing function turned out to be a rescue. On medium settings, it worked quite well – it did not ruin the image with excessive softening, while also smoothing out colours in such a way that everyday content gained consistency. The difference was particularly noticeable with TV programs or streaming materials of poorer compression quality, where the television with the function enabled presented itself much better. This is one of those additions that are worth keeping active, as they significantly improve the reception of everyday materials.

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.

LG UA7500 is a television with a 60 Hz panel, so it's hard to expect any excitement in this category. It's more of a screen intended for daily content or an evening movie session rather than for following fast-paced sports events or playing action games. It’s clear that the manufacturer designed this model specifically for that audience – and it performs well in that regard. We have the TruMotion function available, which is a motion smoother. It’s simple, has only one slider, but can make a noticeable difference. At the lower range, the image looks more raw and cinematic, while at higher values, the motion becomes smoother and more pleasurable to the eye.

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.

LG UA7500 is a TV that can be confidently recommended to "casual" gamers. While it doesn’t feature a 120 Hz panel or HDMI 2.1 ports, making full use of the potential of modern consoles isn’t something we can expect. However, the manufacturer has included several additions that can enhance the gaming experience. Notably, there's the Game Bar – a very nicely designed panel that allows quick access to and changes of the most important settings. From this panel, we have access to the ALLM mode (automatic switching to game mode), as well as frame synchronization, or VRR. The range of VRR is limited – it works from 48 to 60 Hz – but the mere presence of this feature in such an affordable TV leaves a positive impression.

Additionally, it also supports HGiG, which is a HDR calibration mode for games. It sounds good, but from our testing experience, we know that for the UA7500 this option doesn’t make much sense. The TV doesn't perform well with HDR, so paradoxically, we achieved better results with this mode turned off. This is another signal that the UA7500 is more of a screen for occasional gamers who value simplicity and convenience rather than for those looking for the full experience from the latest consoles.

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.