Sony Bravia 8 MK2 vs LG OLED B6

Thanks to its new QD-OLED panel, the Sony Bravia 8 II can achieve an astronomically high brightness of around 2000 nits, which translates into almost reference-quality performance in films and series mastered in HDR. In test material such as Life of Pi or Sicario 2 the effect is genuinely impressive: details in bright areas remain perfectly visible and night scenes charm with depth and contrast. It is not, however, perfect. Compared with its toughest rivals, the Bravia 8 II shows a noticeable drop in brightness on full-screen, very bright frames. If you compare peak point luminance with 100% white in HDR mode, the Bravia 8 II can appear two or three times darker than models such as the LG G5 or Samsung S95F. In a scene from The Meg this was particularly obvious, with the screen becoming noticeably dimmer than competing TVs. Despite this shortcoming, the Bravia 8 II still ranks among the market leaders. Its absolutely top-tier colour gamut coverage is praiseworthy: DCI‑P3 at almost 100% and BT.2020 close to 90%. These are the specifications that allow HDR content to be fully realised and deliver cinema-like experiences at home.

The LG B6 is a moderately bright OLED. After calibration it reaches around 800 nits, roughly 200 nits more than last year’s B5. That’s down to the new, budget OLED SE panel from LG Display. In practice it simply gives a bit more headroom and makes HDR look fuller in many scenes than on last year’s lower‑end OLEDs. That does not mean the B6 has no limitations. In very bright shots, when a large part of the screen is strongly lit, brightness can fall below 400 nits. This behaviour is typical for OLED TVs, especially in this segment, and that’s where you see the biggest difference compared with more expensive models. Even so, we judge the B6’s results as genuinely solid. It’s still not a TV for breaking brightness records, but the HDR effect is strong enough that films truly feel like a step up from ordinary SDR. Colour gamut Using the OLED SE panel has had a slight impact on wide colour gamut coverage. Compared with last year’s model the results have fallen by a few percentage points. It covers roughly 96% of DCI‑P3 and about 71% of BT.2020. That doesn’t mean the colours on the LG B6 are weak. In most films and series they look lively, well saturated and simply pleasing to the eye. You only notice the difference in very bright, highly colourful scenes. Then colours lose some intensity compared with QD‑OLED panels. This stems from the WOLED panel structure. Besides red, green and blue subpixels it also uses a white subpixel, which helps to boost brightness. However, this comes at a price. At very high luminance some colour is effectively 'diluted' by the white light, so the saturation of certain colours can be slightly lower. In everyday use this isn’t a major issue, but in the most demanding scenes you can notice it.

Straight out of the box the Bravia 8 II performs really well. In its best IMAX® Enhanced mode the TV can reproduce colours in a pleasant, natural way, although "good" here does not mean "best in class". The white balance definitely needs adjustment, as skin tones tend to shift slightly towards pinkish/cool hues in both SDR and HDR content. We also noticed that the EOTF curve tends to brighten the darkest parts of the image. This is likely the manufacturer's attempt to reveal as much detail as possible even in deep shadows. Is that a good approach? It's hard to say definitively, but one thing is clear: it is not an ideal solution.

We tested the LG B6 in Filmmaker Mode, the best picture setting available straight out of the box. ISF modes produce very similar results, but in our tests we always stick to Filmmaker Mode for better comparison with other TVs. Each of them is, in any case, a much better starting point than Vivid or Eco mode, where the picture is heavily boosted and noticeably less natural. On SDR material the factory settings perform really well. Colour errors are small, the gamma response is correct, and the picture during normal viewing looks natural and does not feel overly "pumped up". It's a bit worse with HDR. When such content is played you quickly see that the white balance hasn't been set perfectly. Too much blue and red gives the image a slightly pink tint. This is also confirmed by colour gamut measurements and the ColorChecker, where samples clearly shift in that direction. It's not a flaw that completely spoils the picture, but it is noticeable with HDR films. Therefore anyone who wants the most faithful image should consider calibration, which we cover further on in the review.

After calibration we mainly managed to eliminate the excessive cooling of the image caused by an overly strong boost to the blue channel. Reds became deeper and skin tones acquired a natural, healthy look. Actors who previously seemed 'cold' now appear much more lively and convincing on screen. One thing has not changed, however: analysis of the EOTF curve still shows that the Bravia 8 II tends to brighten the darkest parts of the image. It is hard to say whether this is an intentional move by the manufacturer or a result of the panel design and software. In practice this means scenes that creators intended to remain in deep shadow can reveal more detail than intended. Despite that, image quality after calibration is clearly better, and the warm, natural colours and realistic skin tones simply make watching on the Bravia 8 II more pleasing to the eye.

During calibration, we concentrated mainly on HDR content, because that's where the factory settings needed the most correction. We did not, however, neglect SDR mode, which after adjustment was brought almost to perfection. Colours are very accurate, and brightness is controlled as it should be. The biggest improvement in HDR came from fixing the white balance. Removing the excess red and blue eliminated the pinkish tint, and the image became much more natural. Skin tones, whites and all colours that had previously shifted towards pink improved. After calibration most errors fell below a Delta E of 2–3, the threshold at which the average viewer stops noticing differences with the naked eye. So the LG B6 can deliver a very accurate picture, particularly for the manufacturer's entry-level OLED model.

Upscaling and digital image processing are a real showcase of the Bravia 8 II's capabilities. Sony has long been regarded as a master in this field, and this only confirms that reputation. Sony's proprietary XR processor can pull almost all the detail out of lower-resolution sources, whether it's television or an old DVD movie the picture looks sharper, with more detail and greater depth. Of course, if you feed it exceptionally poor-quality material (such as our archival photo of the Model), it won't work miracles, but for everyday viewing there's little to complain about.

The gentle gradation function also performs excellently. On the 'Medium' setting it effectively smooths tonal transitions, eliminating banding in colour and grey gradients while not destroying film grain or fine image details. It is precisely this balance between subtlety and effectiveness that keeps Sony's TVs among the best on the market in this category.

The LG B6 handles lower-quality material very well. This is largely thanks to effective digital image processing, which can mask some of the source’s imperfections without overly smoothing the whole scene. The "Smooth Gradation" function proves particularly useful. It noticeably reduces posterisation, especially in dark parts of the image. The safest choice remains the Low or Medium setting. The function still effectively smooths out unsightly tonal banding, but does not yet interfere too much with fine details. Purists can of course leave it switched off. Upscaling to 4K also performs very well. Full HD and 720p material retain a good amount of detail, and the image is neither overly sharpened nor heavily blurred. Some limitations only become apparent with very poor sources below 720p, where the smallest text and fine elements are not always perfectly sharp, but this applies to almost every other TV on the market.

Motion smoothness is, in the case of the Bravia 8 II, practically a closed matter. A 120 Hz OLED naturally delivers a very clean, sharp picture in fast-moving scenes, so there's little to complain about. Particular praise, however, is due to its motion-smoothing systems, which are among the best on the market. They let you precisely tailor the motion of films to your own preferences, ranging from subtle smoothing to an almost "theatrical" effect, without the risk of artificial judder, image tearing or annoying artefacts. It's one of those features you'll appreciate both during film screenings and when watching sport.

One of the biggest advantages of OLED panels is the very fast pixel response time. This keeps the picture sharp and free of the visible smearing often seen on LCD TVs. However, there is a downside. During slow camera pans motion can look choppier than on LCD screens, where some of that effect is naturally masked by the slower panel. Fortunately, on the LG B6 this can be easily mitigated using the TruMotion system. With the motion smoothing set correctly you can achieve smoother motion without giving the picture an exaggerated soap opera effect.

LG OLED B6 has plenty to offer gamers; it’s simply a complete base for PS5, Xbox Series X/S or a capable PC. It has four full-size HDMI 2.1 ports with 48 Gbps bandwidth, so you can avoid irritating cable swapping when connecting several newer devices at once. It offers a full suite of synchronization technologies, from standard VRR to G-Sync and FreeSync. The screen synchronises the refresh rate seamlessly with the frame output from the console or graphics card. Of course it includes ALLM: the B6 automatically recognises when a game is running and immediately reduces latency to a minimum. HDR support is also excellent. The TV supports Dolby Vision, and a correctly implemented HGiG standard means that, after initial calibration in the console settings, the image won’t suffer from blown-out highlights or lost detail in bright areas. The cherry on the cake is the Game Bar. Instead of digging through the full menu during gameplay, a single click is enough to adjust shadow visibility, tweak selected parameters or simply check the current display mode. All of this makes the LG B6 an excellent choice for gamers.