LG OLED C6H (TANDEM OLED) vs Sony BRAVIA 7 II

And it's with HDR that the Tandem OLED panel shows its biggest advantage. The C6H's brightness is simply very high and in our measurements it hovered around 1900–2300 nits in most movie scenes. That's already a level at which bright highlights, the sun, or small light sources can look truly spectacular. The biggest impression on us, however, was the fifth scene from the film The Meg. It is exceptionally demanding for OLEDs because practically the entire screen is very bright. Even so, the C6H reached about 1650 nits there. For comparison, the regular C6 with a classic WOLED panel delivered around 600–700 nits in the same spot. So we're talking about more than double the brightness, and in places the difference approaches threefold. That is probably the best example of what Tandem OLED brings. It's not just a higher result on a small test patch. The C6H can sustain very high brightness even when much more of the screen is lit. Thanks to that, HDR has a significantly greater dynamic range and in this respect the C6H is much closer to flagship OLEDs than to typical mid-range models.

Colors

Tandem OLED also brings improvements in color. DCI-P3 coverage remains practically full at about 99%, while in the much wider BT.2020 gamut we measured roughly 82–83%. That's about 7 percentage points more than the regular C6. In everyday use this won't be a visible difference in every scene, since most films don't use such a wide gamut. However, when very heavily saturated colors appear, the C6H already has noticeably greater capabilities, especially in 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 Sony Bravia 7 II handles HDR very well and, above all, is simply a bright TV. In the proper "Professional" viewing mode we measured about 2000 nits of peak brightness, so the panel's capabilities are really substantial. Of course, with Mini-LEDs the result on a test pattern is only part of the story, because a lot depends on how the TV controls the backlight in real scenes. And here Sony's algorithms perform really well. Depending on the scene, the brightness we measured in movies ranged from around 1100 up to 1700 nits. That's already a level at which HDR has the proper punch and bright effects can really impress. It's not perfect in every situation, though. With small bright elements on a very dark background the Bravia 7 II clearly prioritizes maintaining good black levels, which can cause their brightness to drop to around 500 nits. It still looks good, but you can see the TV doesn't always operate without compromises.

Colors

The second thing that has a huge impact on the HDR effect is, of course, color. And this is where True RGB technology was supposed to bring one of the biggest changes. Looking at the panel's raw capabilities, the Bravia 7 II performs very well. We measured about 98% DCI‑P3 coverage and 88% BT.2020, so the potential to display highly saturated colors is really large. However, in RGB TVs the situation is a bit more complex. When we performed the same measurements with a movie background applied, the gamut coverage dropped to about 92% DCI‑P3 and 78% BT.2020. Those are still good figures, especially for an RGB Mini-LED TV, but they clearly show that the final result largely depends on how the algorithms control the three backlight colors. In most scenes the Bravia 7 II handles this well and colors retain high saturation. The biggest differences are seen in shades of blue, where samples start to deviate more noticeably from the reference values and coverage is weaker than for the other primary colors. So True RGB does offer real additional possibilities here, but like with brightness, much depends on what is actually happening on the screen.

Right out of the box the LG C6 is pretty well calibrated, especially if you select Filmmaker mode. In SDR content the white balance is quite good, although as brightness increases it starts to show a slight lack of red. The picture becomes a bit cooler as a result, but not enough to be very noticeable during normal viewing. More is happening 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 much of the range. In practice the C6 slightly brightens the midtones. Shadows are therefore more readable, but the image loses some depth compared with how it should look in a dark room.

The situation is a bit more interesting in HDR. The start of the grayscale looks very good, but from roughly 20–30% brightness the white balance begins to drift increasingly. As brightness rises, red increases and blue becomes noticeably lacking. In the brightest areas the difference is already substantial and also affects the reproduction of some colors. The EOTF curve itself is, however, fairly well followed over most of the range. The C6 only tends to slightly brighten the image, which we also saw during our film comparisons. The largest deviation appears around the brightest sections, where the TV begins to map the signal to the panel’s capabilities.

The out-of-the-box Filmmaker mode in HDR is therefore not perfect, but overall it performs well. The biggest room for improvement is the white balance, especially at high brightness.

To evaluate the out-of-the-box colors we chose Professional mode, because it performs best among the available settings. It's not perfect, though. In SDR the white balance leans slightly toward magenta, so some scenes look a bit warmer and less neutral than they should. A bigger issue is the gamma, which sits closer to 2.5 than 2.4. That makes the image a bit too dark in places, especially in the midtones. In HDR the situation is better. As brightness increases there is a bit too much red, but it's not a fault that stands out during viewing. Overall, Professional mode is a good starting point, although you can get a little more out of it with calibration.

LG TVs have been very receptive to calibration for years, and the C6 is no exception. After correction we were able to set the white balance almost perfectly, and most color errors (Delta E) fell below 3, often even around 2. In practice this means very accurate color reproduction in both SDR and HDR. The only curiosity showed up with the HDR luminance response. On the standard EOTF chart everything looks nearly perfect and at first glance it would be hard to fault anything. Only when we measured the TV’s behavior using filters based on actual movie scenes did it become apparent that the C6 has a slight tendency to artificially boost image brightness.

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

After calibration the Bravia 7 II can look significantly better. First of all, we managed to set the white balance very well, both in SDR and HDR. Gamma can also be improved, and after correction it runs very close to the reference value. For most users, those changes will have the biggest impact on the picture. There is, however, a limitation when it comes to colors. On the Bravia 7 II Sony does not provide access to a classic CMS that would let us adjust individual hues separately. A lot is therefore left in the hands of the algorithms controlling the True RGB backlight. If the TV reproduces a specific color inaccurately, we are not always able to do anything about it. In our measurements this is most evident with some reds and blues, where errors can still be quite large. That does not, however, diminish the value of calibration. Correctly setting the white point and gamma strongly affects the overall image, so even without the ability to precisely tweak every color the difference compared with the factory settings is noticeable.

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" feature works especially well. With heavily compressed material it can effectively hide ugly banding and artifacts that often appear, for example, in lower-quality streaming. It's best to leave it on the "Low" setting. That way the improvement is noticeable, and the TV doesn't yet start blurring fine details. Higher levels smooth the image more, but can start to remove some of the natural texture of objects on screen. The upscaling itself also performs very well. Lower-resolution material is properly sharpened, edges look clean, and the processor quite effectively reconstructs fine details. In this respect the C6 is already very close to LG's best TVs, and the differences compared with the G6 are small.

Upscaling and digital processing are among the Bravia 7 II's strongest assets and one of Sony's biggest advantages over the competition. Sony has handled digital image processing well for years, and it shows here too. Above all, the "Smooth Gradation" function works very well; it can smooth weak tonal transitions in lower-quality content. It's safest to set it to Low, but we'd comfortably recommend Medium as well. The effect is stronger then, and the TV still handles details very delicately. Some fine detail may be slightly smoothed, but Sony does it much more subtly than many other brands. The upscaling itself also performs very well. Lower-resolution sources are well upscaled to 4K; the picture looks clean and retains a lot of detail. Of course the TV won't magically turn native HD material into true 4K, but the Bravia 7 II does a very good job with what can be extracted from such a source.

The C6H with a Tandem OLED panel can also operate at refresh rates up to 165 Hz. PC gamers will get the most use out of that, of course, because for consoles, movies, or sports we’re still talking about a maximum of 120 Hz. The panel itself performs excellently in motion. OLED pixels respond virtually instantly, so even with fast-moving objects you don’t see the typical motion blur behind them. The image stays clean whether you’re watching sports or playing fast-paced games.

If you care more about smoothness than motion clarity, TruMotion is available. LG lets you adjust two parameters separately. De-Judder works mainly with films and series shot at 24 fps and helps reduce the judder typical of them. De-Blur, on the other hand, is intended for 50/60 fps material, so it’s especially useful when watching sports or TV.

The Bravia 7 II uses a 120 Hz panel, so in terms of motion smoothness it delivers everything you’d expect from a TV in this class. With sports or games at 120 fps the picture is appropriately smooth, and for movies Sony provides an advanced motion smoothing feature. You can adjust the level of interpolation separately and decide whether you want to keep a more cinematic motion or achieve noticeably smoother motion. The issue of motion blur is a bit worse. The VA panel used isn’t among the fastest, and you can notice a slight trail behind moving objects, especially on darker backgrounds. It’s not at a level that will be highly distracting during normal viewing, but last year’s Bravia 7 performed better in this respect and had a noticeably faster panel.

The C6H offers basically a full package of gaming features. On consoles we 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 proper implementation of HGiG. Dolby Vision is also available in game mode, which remains a significant advantage for Xbox owners. We can view all the key information in the Game Bar, which provides quick access to VRR settings and current signal parameters. The OLED tandem therefore doesn't change the actual feature set for gamers, but with such high panel brightness HDR games can make an even bigger impression. Functionally, the C6H is simply a very complete TV for console and PC.

The Bravia 7 II essentially has everything you'd expect from a good console TV today. It supports 4K at 120 Hz, VRR from 48 to 120 Hz, and ALLM, so when you start a game the TV automatically switches to low-latency mode. There's also a properly working HGiG, which means that after setting up HDR on the console the TV won't try to further brighten the image on its own. Just remember to turn off tone mapping in the TV's menu. Dolby Vision in game mode is another plus, especially for Xbox owners. Sony also includes its own Game Menu. From it you can quickly view key signal information, check VRR, or change gaming settings without digging through the TV's entire menu. The only thing missing from the feature list is support for 1440p at 120 Hz.

Our biggest complaint is not really with the features themselves, but with the connectors. The Bravia 7 II has four HDMI ports, but only two of them support full HDMI 2.1 at 48 Gbps. One of those is also an eARC port. So if you connect a soundbar or AV receiver via HDMI, in practice you have only one full HDMI 2.1 port left for a console or PC. With a single console that's fine, but with a PS5, an Xbox, and an audio setup it starts to get tight. That's hard to justify from Sony. Two HDMI 2.1 ports might be acceptable in cheaper TVs, but in a model of this class, especially in 2026, we'd expect all four ports to be HDMI 2.1.