LG OLED G6 (G64LW, G66LS) vs Sony BRAVIA 7 II

The LG G6 is currently one of the brightest OLEDs on the market. Its peak brightness reaches nearly 2500 nits, and best of all – this has a direct impact on real film scenes. The television flawlessly pulls out details in the bright parts of the image. And this is regardless of whether we are talking about very small points like stars in the sky or slightly larger elements on the screen. Naturally, with full-screen, uniformly white scenes, the brightness of the G6 decreases due to the panel's protection system (ABL). However, in real, varied film shots, this value still hovers around 2000 nits, which can be considered an outstanding result. The coverage of the color palette also deserves praise. The new 2nd generation Tandem OLED panel brought only a cosmetic change, but still an improvement. The DCI-P3 color gamut coverage reaches nearly 99.5%, while the ultra-wide BT.2020 is around 84%. These are very good results, although one must remember one thing: at extremely high brightness levels, the volume of colors will be lower than in QD-OLED panels from Samsung Display due to the use of a white sub-pixel (WOLED). However, in everyday content and most films, detecting this difference will be very difficult.

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.

We tested the LG G6 in the best factory mode for color fidelity, which is FILMMAKER MODE. For our test unit, this mode was fairly well-tuned right out of the box. In SDR content, the only thing we could nitpick was the white balance, which leaned towards warmer tones. As a result, the image could sometimes appear slightly yellowed; however, overall, it wasn't a bothersome issue. The G6 performed a bit worse with HDR content. There, we noticed too much blue component in the white balance. This caused the image to take on cooler shades, resulting in quite noticeable errors. As can be seen in our ColorChecker chart, colors were indeed shifting towards these cooler registers. Nevertheless, for factory settings, the television displayed a completely decent level. However, we know that OLED screens – especially those from LG – respond wonderfully to professional calibration, which is why we immediately proceeded with it.

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.

After conducting a professional calibration, we gained complete control over the panel, and we were able to adjust all parameters to nearly zero. We managed to perfectly tune the white balance, which made the factory-cool and warm tints disappear from the screen. The effects are clearly evident in the ColorChecker test – the average color reproduction errors dropped below the critical value of 1-2. And what does that mean? PERFECT colors, with no distortion whatsoever! However, from a reviewer's obligation, we must comment on how the LG G6 autonomously manipulates brightness, for which the EOTF curve is responsible. When we look at the standard synthetic graph, it may seem that the line is quite straight. The situation changes, however, when we turn on the measurement filter, which shows how the television interprets brightness in real, moving film scenes (EOTF in MOVIES). At that point, it becomes clear that some of the smallest fragments on the screen are slightly over-brightened by the algorithm. Of course, for the average viewer, such a deviation will be practically unnoticeable, but in the test of such an expensive screen, it is worth noting – especially since we are talking about a model that has huge aspirations to be the best television of the year.

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.

No matter what one may say about the G6's problems with near-black signal, it must be fairly acknowledged that it handles highly compressed material and lower resolution content brilliantly. All unwanted, ugly tonal transitions are effectively reduced here by the “Smooth Gradation” feature. On the “Low” setting, the algorithm operates flawlessly – effectively masking the artifacts resulting from strong compression, without destroying the sharpness and details in the frame. Higher levels of this feature indeed smooth the image even more, but they start to blur the real texture elements of objects, which is why we recommend keeping this slider at a low level. As for the upscaling to 4K, the processor does an excellent job – edge sharpness and detail reconstruction are at the highest level, and in this respect, the G6 does not lag behind the world's best.

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 LG G6 is an OLED television, so in the category of motion fluidity, it traditionally deserves the highest ratings. The television supports a very high refresh rate of up to 165 Hz in 4K resolution, but most importantly – you will not see any signs of blurring on the screen. The response time of the panel is incredibly fast, ensuring that dynamic images remain perfectly sharp.

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.

LG G6 is a true monster for gamers and one of the best-equipped TVs in this regard on the market. The manufacturer did not seek compromises and equipped this model with as many as four full HDMI 2.1 ports with a maximum bandwidth of 48 Gbps. This means that no matter which port you plug your PlayStation 5, Xbox Series X, or powerful PC into, you will extract the absolute maximum from them.

The TV supports a full suite of gaming technologies: from VRR (Variable Refresh Rate), through AMD FreeSync Premium Pro, to Nvidia G-Sync Compatible. Let's add to this the remarkably low, almost imperceptible input lag and a brilliantly functioning gamer panel (Game Optimizer), which allows you to continuously monitor the signal parameters. Gaming on this screen, with the perfect black of OLED and powerful refresh rates, is pure pleasure.

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.