TCL A400 PRO vs SONY BRAVIA 3 II (XR35M2)

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.

Bravia 3 II is certainly not a TV that tries to impress with brightness. In our measurements it reached about 450 nits, so it's far from the strongest designs on the market. That said, HDR here is not just a paper feature. Compared with regular SDR material, the brightest parts of the image can already punch through, and reflections, highlights, or 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 many bright elements appear on screen. Then the Bravia 3 II can give a hint 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 strong, striking HDR we get only a correctly rendered picture.

Colors

Bravia 3 II uses a QLED-type panel, although technically it does not use a traditional quantum-dot layer. Instead Sony applied a PFS phosphor-based solution that serves a very similar role: it allows for more saturated reds and greens and thus lets the TV display a much wider color gamut. Measurements showed about 94% coverage of the DCI-P3 gamut and about 74.4% of the very wide BT.2020. Those are good results for this class of hardware, meaning the Bravia 3 II has no problem showing adequately saturated colors in HDR content. Colors don't look washed out, and the more intense shades can look really attractive.

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.

In Professional mode the Bravia 3 II, straight out of the box, delivers a fairly good level of color reproduction. In SDR the most noticeable issue is a slightly low gamma, which makes the midtone areas a bit brighter. White balance is not perfect either; as brightness increases there is a slight lack of blue and red, so whites can sometimes take on a slightly warmer, mildly greenish tint. However, these are not errors that immediately stand out while watching a movie. Average error values hover around 3, so the factory preset can be considered quite good. The situation is similar in HDR. Here again there is a slight deficiency in the blue component, so the image is a touch warmer than the reference, but the difference is not large enough to be significantly distracting during normal viewing.

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.

After calibration you can get a lot out of SDR content. The white balance was set almost perfectly, gamma practically matches the reference value, and average color errors fell from around 3 to about 1. That's a level at which differences from the reference image are, in practice, very hard to detect. The Bravia 3 II therefore shows that despite its position in Sony's lineup it has quite a lot of potential for precise picture tuning. Improvements are also visible in HDR, although here you can no longer work around all of the TV's limitations. After equalizing the colors 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 slightly darkens part of the image. That's not ideal from a reference standpoint, but in this particular TV it also has an advantage. With no local dimming and average black levels, this behavior slightly reduces the visibility of the backlight in darker scenes and helps maintain a greater sense of contrast. So you could say Sony partially masks the limits of the panel that way, rather than trying at all costs to stick to the reference luminance.

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.

The Bravia 3 II is Sony’s first TV to use the new MediaTek Pentonic 800 chipset, and you can see a few changes in image processing. Starting with the basics: upscaling is solid. The TV can sensibly upscale lower-resolution material and doesn’t have a strong tendency to overemphasize jagged edges or other source imperfections. With regular broadcast TV or lower-quality streaming the picture remains quite pleasing. We have more reservations about the digital image processing. In this model Sony replaced the well-known "Smooth Gradation" feature with a new setting called "Digital Noise Reduction." Its role is essentially the same: to smooth unpleasant tonal transitions and artifacts caused by heavy compression. Unfortunately, this feature performs noticeably worse than before. At the "Large" setting — the only one that noticeably affected the picture — the TV can smooth away too many image elements at once, causing film grain to disappear and surface textures or even character skin to start looking unnatural. Worse, the effect is not very consistent. When a scene contains more motion the function’s effect weakens significantly and at times it looks as if the TV stops intervening in the image altogether. For everyday viewing we therefore don’t recommend using it at a high level. It can help on a static shot, but the price 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 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.

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. Here Sony has managed to get that problem very well under control. Fast-moving objects remain sharp, and the characteristic trails and blurring are reduced to a very low level, if not to zero. It's one of the least smearing 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.

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.

Sony Bravia 3 II is a very good TV for gamers, although not everything has been handled the way we'd like. The biggest change concerns the connections. 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 long-standing issues that has plagued the manufacturer's TVs. You can connect several devices at once and use each input's full capabilities, including VRR and ALLM. There's also a simple Game Bar that lets you check 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. This won't be a problem 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 does not allow disabling tone mapping on the Bravia 3 II, so the TV continuously processes HDR content even when you would prefer to leave that task to the console. You can most easily notice this during HDR setup. The checkerboard pattern does not disappear at the point corresponding to the TV's actual capabilities. That doesn't mean HDR in games will look bad. You just need to approach the setup a bit differently and, instead of relying on the pattern, manually set the peak brightness to about 450 nits. The issue can be worked around, but you should know about it before you start configuring your console.