TCL A400 PRO vs SONY BRAVIA 3 II (XR35M2)

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 Bravia 3 II isn't exactly a TV that tries to impress with brightness. In our measurements it reached around 450 nits, so it's well short of the brightest models on the market. That doesn't mean HDR is just a paper feature here. Compared with standard SDR material, the brightest parts of the image can already punch through noticeably, and highlights, light sources and stronger exposures have a bit more energy and stand out better from the rest of the scene. You can see this best in simpler shots where the screen contains lots of bright elements. Then the Bravia 3 II can give a taste of a higher-dynamic-range picture. The problem only starts with more demanding content, where much greater brightness headroom is needed. There the TV quickly shows its limits and instead of bold, spectacular HDR we’re left with a merely competent picture.

Colours

The Bravia 3 II uses a QLED panel, although technically it doesn't employ a traditional quantum-dot layer. Instead Sony has used a PFS phosphor-based solution, which performs a very similar role: it allows for more saturated reds and greens, and thus reproduces a much wider colour gamut. In our measurements coverage of the DCI-P3 gamut was about 94%, and of the very wide BT.2020 around 74.4%. Those are good results for this class of hardware, which means the Bravia 3 II has no problem showing suitably saturated colours in HDR material. Colours don't look washed out, and the more intense hues can look really attractive.

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.

In Professional mode the Bravia 3 II delivers a fairly good level of colour reproduction straight out of the box. In SDR the most noticeable issue is a slightly low gamma, which makes the midtones a little brighter. The white balance isn't perfect either; as brightness increases a bit of blue and red drops away, so whites can sometimes appear a touch warmer with a faint greenish tint. These aren't mistakes that immediately jump out when watching a film. Average error values hover around 3, so the factory setup can be considered quite good. The situation in HDR is similar. Here too there's a slight lack of blue, so the picture is marginally warmer than the reference, but the difference isn't large enough to be distracting during normal viewing.

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.

After calibration you can get a lot out of SDR material. The white balance was set almost perfectly, gamma practically matches the reference value, and average colour errors fell from around 3 to about 1. That’s already the level at which differences from the reference image are very hard to spot in practice. The Bravia 3 II therefore shows that despite its place in Sony’s range it has quite a bit of potential for precise picture tuning. Improvement is also visible in HDR, although here you can’t avoid all the limitations of the TV itself. Once the colours are evened out it’s easier to notice that the EOTF curve in film material runs slightly below the reference value in places, meaning the Bravia 3 II gently darkens parts of the image. That isn’t ideal from a reference point of view, but in this particular TV it also has an advantage. With no local dimming and average black levels this behaviour slightly reduces the visibility of the backlight in darker scenes and helps preserve a stronger sense of contrast. You could say Sony is partly masking the limitations of the panel this way, rather than trying at all costs to stick to the reference brightness.

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.

Bravia 3 II is Sony's first TV to use the new MediaTek Pentonic 800 chip, and you can see a few changes in the image processing. Starting with the basics: the upscaling itself is decent. The TV can sensibly upscale lower-resolution material and doesn't have a strong tendency to over‑emphasise jagged edges or other source imperfections. With regular broadcast TV or lower-quality streaming material the picture therefore remains quite attractive.

We have more reservations about the digital image processing. In this model Sony has replaced the well-known "Smooth Gradation" function with a new setting called "Digital Noise Reduction". Its job is basically the same: to smooth out ugly tonal transitions and artifacts caused by heavy compression. Unfortunately, this function performs noticeably worse than before. At the "Large" setting (the only one that had any visible effect) the TV can smooth away too many image elements at once, which causes film grain to disappear and object textures or even skin to start looking unnatural. Worse still, the effect is not particularly stable. When there's more motion in a scene, the function's effect noticeably weakens and at times it looks as if the TV stops intervening in the image altogether. So for everyday viewing we wouldn't recommend using it at a high level. It can help on static shots, but the trade-off is often too much loss of detail.

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.

Motion handling is definitely one of the Bravia 3 II's strongest points. The TV uses a 120 Hz VA panel, a solution that by nature, despite the high refresh rate, doesn't always cope well with motion blur. Sony has, however, managed that issue very well here. Fast-moving objects remain sharp, and the characteristic motion trails and blur are reduced to a very low level, if not to zero. It's one of the least motion-blur-prone LCD TVs we've had the chance to test. Interestingly, in this respect the Bravia 3 II can even outperform the much more expensive flagship True RGB series, the Bravia 9 II.

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.

The Sony Bravia 3 II is a very good TV for gamers, although not everything has been solved the way we’d like. The biggest change concerns the connectors. For the first time in a Sony TV we get four full HDMI 2.1 ports with 48 Gb/s bandwidth, thanks to the new MediaTek Pentonic 800 chipset. That removes one of the problems that has hung over this manufacturer’s TVs for years. You can connect several devices at once and on each input use the device’s full capabilities, including VRR and ALLM. There’s also a simple Game Bar that lets you check the key signal parameters and change a few useful settings, such as black level, when you want to improve visibility in darker parts of a game.

There are, however, two limitations worth knowing. The first is the lack of support for 1440p at 120 Hz. That won’t be an issue for everyone, but people using that resolution on a console or PC—for example to get higher frame rates in certain games—will have to choose 1080p. We have more reservations about HGiG support. Sony doesn’t let you disable tone mapping on the Bravia 3 II, so the TV keeps processing HDR even when you’d prefer to leave that task to the console. It’s easiest to spot during HDR setup—the checkerboard test pattern doesn’t disappear at the point where it should based on the TV’s actual capabilities. That doesn’t mean HDR in games will look bad. You just need to set up a little differently and, rather than relying on the pattern, manually set the peak brightness to about 450 nits. So the issue can be worked around, but you should know about it before you start configuring your console.