LG OLED C6H (TANDEM OLED) vs SONY BRAVIA 3 II (XR35M2)

And the biggest advantage of the Tandem OLED panel is most obvious with HDR. The C6H's brightness is simply very high and, in our measurements across most film scenes, hovered around 1,900 to 2,300 nits. That's the kind of level at which bright highlights, the sun or small light sources can look truly spectacular. The scene that impressed us most was the fifth scene from the film The Meg. It's particularly demanding for OLEDs because almost the entire screen is extremely bright. Even so, the C6H reached about 1,650 nits in that scene. By comparison, the standard C6 with a classic WOLED panel managed roughly 600 to 700 nits at the same point. So we're talking about more than double the brightness, and in places the difference approaches three times as much. And that's probably the best example of what Tandem OLED delivers. It's not just a higher score on a small test window. The C6H can maintain very high brightness even when much more of the screen is illuminated. That gives HDR a much wider dynamic range, and in this respect the C6H is considerably closer to flagship OLEDs than to typical mid-range models.

Colours

Tandem OLED also brings improvements in colour. DCI-P3 coverage remains virtually complete at around 99%, while in the much wider BT.2020 colour space we measured about 82–83%. That's roughly 7 percentage points more than the standard C6. In everyday viewing this won't be a difference you notice in every scene, because most films don't use such a wide palette. However, when very highly saturated colours appear, the C6H has noticeably greater capability, especially with reds. Reds benefit the most, becoming deeper and more saturated. It's still not at the level of the best QD-OLED panels or SQD TVs, but for a WOLED panel the result is really very good.

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.

Right out of the box the LG C6 is pretty well set up, especially if you select Filmmaker mode. In SDR content the white balance is good, although as brightness increases it starts to lack red slightly. This makes the picture a bit cooler, but not enough to be very noticeable during normal viewing. More is going on in the luminance response. Gamma is a bit low and instead of holding at 2.4 it sits closer to 2.1–2.2 across a large part of the range. In practice the C6 slightly brightens midtones. Shadows are therefore more readable, but the image loses a little depth compared with how it should look in a dark room.

In HDR the situation is a bit more interesting. The start of the grayscale looks very good, but from around 20–30% brightness the white balance starts to drift more strongly. As brightness increases red builds up and blue becomes noticeably lacking. In the brightest parts the difference is already significant and also affects the reproduction of some colours. The EOTF curve itself is handled quite well across most of the range. The C6 only has a tendency to slightly brighten the picture, which we've already seen in our film comparisons. The biggest deviation appears around the brightest sections where the TV starts to adapt the signal to the panel's capabilities.

So the factory Filmmaker setting in HDR is not perfect, but overall performs well. The biggest room for improvement is the white balance, especially at high brightness.

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.

LG TVs have long responded very well to calibration, and the C6 is no exception. After adjustment, the white balance was set almost perfectly, and most colour errors fell to values below 3, often around 2. In practice this means very accurate colour reproduction in both SDR and HDR. An interesting detail only showed up with the HDR luminance response. On a classic EOTF chart everything looks almost perfect and at first glance it would be hard to fault. Only when we measured the TV’s behaviour using filters based on real film scenes did it emerge that the C6 has a slight tendency to artificially boost image brightness.

It isn’t a huge difference and many people may even see it as a positive, since HDR looks a bit more punchy. From the point of view of fidelity to the source material it’s not ideal, though — some scenes are simply a touch brighter than the filmmaker intended. Interestingly, this is quite atypical for LG. In previous generations, this brand’s TVs usually stuck very closely to the reference picture characteristics after calibration. With the C6 we’re still very close to the standard, but that subtle boost in brightness can indeed be noticed in movies and TV shows.

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.

Here the LG C6 has taken a really big step forward. The TV uses the same processor found in the flagship G6, and in terms of image processing the two models are very similar. That's a big plus, because in this area LG's processor this year performs excellently. The 'Smooth Gradation' function works especially well. With heavily compressed material it can effectively hide unsightly tonal banding and artefacts that often appear, for example, in lower-quality streaming. It's best left on the 'Low' setting. That way the improvement is clear, and the TV doesn't yet start to blur fine details. Higher levels smooth the picture more, but can begin to remove some of the natural texture of objects on screen. Upscaling itself also performs very well. Lower-resolution content is properly sharpened, edges look clean, and the processor quite effectively reconstructs fine details. In this respect the C6 is already really close to LG's top TVs and the differences compared with the G6 are small.

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 C6H with a Tandem OLED panel can also run at a refresh rate of up to 165 Hz. PC gamers will get the most out of that, of course, because with consoles, films or sport we're still looking at a maximum of 120 Hz. The panel itself performs excellently in motion. OLED pixels respond almost instantly, so even with fast-moving objects you don't see the usual trailing. The picture stays clean both when watching sport and in fast-paced games.

If you prioritise smoothness over motion clarity, TruMotion is available. LG lets you adjust two parameters separately. De-Judder mainly works with films and series shot at 24 fps and reduces their characteristic judder. De-Blur is intended for 50/60 fps content, so it's mainly useful when watching sport or TV.

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.

The C6H offers virtually a full gaming feature set. On consoles you can easily use 4K at 120 Hz, while PC users can push the refresh rate up to 165 Hz. The TV also supports VRR from 40 to 165 Hz, ALLM and a correct implementation of HGiG. Dolby Vision is available in game mode too, which remains a big plus for Xbox owners. All the key info can be seen in the Game Bar, which provides quick access to VRR settings and the current signal parameters. The tandem OLED doesn’t change the actual feature set for gamers, but with such high panel brightness HDR games can look even more impressive. Functionally, the C6H is simply a very complete TV for consoles and PC.

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.