LG OLED B5 vs Hisense UR8S

The LG B5 is a moderately bright OLED television. Regardless of the scene, it can generate around 500 nits of peak brightness. Interestingly, it achieves this even in full-screen shots saturated with white, where most OLEDs typically struggle. So is this screen suitable for HDR films? Indeed – and very much so, because such brightness allows you to truly feel the magic of HDR effects. However, it is worth noting that compared to last year's B4 model, the new B5 is darker – by about 100 nits. It may seem like a small amount, but at such average peak values, it makes quite a significant difference. Fortunately, the television compensates with another advantage – excellent coverage of the DCI-P3 and BT.2020 colour gamut. As a result, HDR films look really colourful, vibrant, and impress even in more demanding scenes.

UR8S is a slightly higher-end Mini-LED, so you could expect a lot in terms of brightness. And indeed, on a synthetic test pattern peak brightness reached around 2200 nits. That’s a very good result, but as always what’s much more important is what the TV does in normal film scenes. Here the results are a bit more uneven. In bright scenes, where there’s a lot of light on screen, the UR8S can deliver really strong HDR. Brightness then reaches about 1500 nits, so the image is very intense and has plenty of punch. It’s worse with small bright elements on a dark background. The TV clearly dims them to keep good blacks and to prevent excessive bloom. As a result things like single stars or tiny reflections can be only around 200 nits. And here HDR is no longer as impressive. So you can see that the local dimming algorithm works effectively, but it also has its cost: sometimes it simply sacrifices the brightness of small details in favour of contrast.

Colours

With RGB Mini-LED TVs colours should be judged a little differently than usual. If we look solely at the panel’s native capabilities, the UR8S performs excellently. We measured around 94% coverage of BT.2020 and practically full DCI-P3. These are among the highest values currently found in LCD TVs and this is where the potential of the RGB backlight is most obvious. The problem is that this potential is not always realised in real scenes. When we ran the same measurements on test patterns with a film background applied, saturation of some colours began to fall noticeably. Individual zones are not always able to control the three RGB components so precisely when the scene becomes more complex. This is most visible with blue and magenta. On simple test patterns they can look very strong, but in more demanding scenes samples of those colours visibly shrink. So the UR8S’s capabilities are enormous, it’s just that the TV cannot fully make use of them in every scene.

We tested the B5 in Filmmaker mode and... we would love to see more TVs like this straight out of the box. Truly. The white balance is set very well – there's practically nothing to complain about. Well, if one were to nitpick, one might notice a slight deficiency in blue, which makes the overall image seem slightly yellowish. But that’s just our editorial quibbling. Most of you probably wouldn’t even notice it. We also have minimal reservations about brightness management in HDR format. The EOTF curve – which is responsible for how the TV distributes brightness in a scene – is slightly below ideal. In practice, it may happen that the darkest parts of the image are displayed too dark and simply… disappear. But these are details that only come out in measurements. Generally: we are impressed. However, we also know that LG TVs respond very well to professional calibration. You can achieve almost reference-quality picture from them, so – while it's already very good out of the box – we allowed ourselves to go a step further and refine everything to perfection.

For assessing the out-of-the-box colours we used Filmmaker mode, which is intended to show an image that is as close as possible to how the material was prepared. Looking at the white balance alone, the UR8S performs quite well. There is no strong tint that immediately jumps out, although as brightness increases a little too much blue and red start to appear, with a simultaneous shortfall of green. Colour errors therefore show up in measurements, but the image itself does not look bad. We have far greater reservations about how the UR8S manages picture brightness. In SDR the gamma sits around 1.9–2.0 for most of the range instead of the target 2.4. In practice this simply means the picture is too bright, especially in the midtones. Shadows are lifted too much, causing the image to lose some depth. A similar tendency is visible in HDR. The EOTF curve is above the reference value for a large part of its range, so the UR8S again brightens the image more than it should. This is not due to a lack of brightness — the TV has plenty — but to the way it manages that brightness. As a result, HDR content can look very striking, but not always precisely as it should.

We must admit that we didn't have much work with the LG B5. It's one of those televisions that look good right from the start, but after calibration… they can really impress. The white balance was brought to almost perfect levels – to the point of errors that are invisible to the human eye, unless you are a professional colourist with a magnifying glass at the screen. We also managed to master the tendency of the television to slightly dim the darkest details, particularly in HDR scenes. After proper tuning, everything looks cohesive: black remains deep but does not consume information. Highlights maintain their natural sparkle, and colours align with the director's vision. This is truly one of those models that shows you don't have to spend a fortune to have an almost reference-quality picture. If you can opt for professional calibration – it’s definitely worth it in the case of the B5.

Hisense provides plenty of calibration options and, in SDR, these can yield a very good result. After calibration, the white balance is practically even across the entire range, and colour errors fall to very low values. The UR8S can be adjusted very precisely here. HDR is somewhat different. The white balance itself can also be noticeably improved, although at the highest brightness levels larger deviations begin to appear. The most interesting aspect, however, is the behaviour of the EOTF curve. Even after it has been correctly set on test patterns, the UR8S still tends to interpret brightness in its own way when watching films. Depending on the scene, parts of the image are slightly brightened while others are dimmed relative to how they should appear. This shows that the algorithms controlling the local dimming have a significant influence on the final image. Calibration therefore allows colours to be improved very effectively, but we are not able to completely 'turn off' the way the UR8S manages brightness in HDR.

LG B5 really positively surprised us in terms of handling lower quality content. Thanks to the enhancement and smoothing features, materials in HD resolution or even SD gain a second life. Importantly – when this option is activated at the "low" or "medium" level, we do not feel that the image is artificially softened or smoothed out unnecessarily. Details remain intact, film grain does not disappear, and the edges of objects do not look washed out 😉. This is truly a useful tool – especially if you are watching terrestrial television, archival materials, or content from YouTube in lower resolutions. The image is clear, coherent, and simply pleasant to the eye.

Scaling as such works very well – even content of poor quality is reproduced with surprising fidelity. Unfortunately, there was a slight hiccup. Although the menu contains the option to disable overscan, the television still has issues with correctly displaying images of very low resolution. It may seem like a detail, but when watching older materials – it can be irritating.

A big plus of the UR8S is the use of the MediaTek Pentonic 800 processor, and digital image processing is one of this model's stronger points. The TV handles smoothing tonal transitions very well, especially with lower-quality content. The feature responsible for this effect works effectively without overprocessing the picture. Even on the medium setting it can noticeably reduce visible banding and unevenness without heavily blurring details. Upscaling itself also performs very well. Lower-resolution content is displayed cleanly, edges look natural, and the image is not overly sharpened. The UR8S simply copes very well with a weaker signal, and in this respect it is one of its most notable strengths.

LG B5 is a television with a 120 Hz OLED panel. It may not sound as impressive as the marketing claims of “144 Hz” or “165 Hz” found in gaming monitors, but honestly? The smoothness is excellent nonetheless. The picture is sharp, fluid and simply enjoyable to watch – even when there is a lot happening on screen. The organic panel does its job – the pixel response time is almost instantaneous, meaning there’s no sign of smearing or blurring that can spoil dynamic shots. Sport, fast-paced games – everything looks clear and distinct.

We also have the classic LG smoothness enhancer, TruMotion. This allows you to smooth out films shot at 24 frames per second – which, to put it bluntly, is most of what you watch on Netflix or from Blu-ray discs. If you set lower values on the “De-Judder” slider, you’ll get a picture closer to a cinematic look – with a slight judder, but without any artificiality. Higher settings? A soap opera effect is guaranteed. Fortunately, LG gives you the option to tune everything to your liking.

The UR8S is equipped with a panel with a native 180 Hz refresh rate, so right from the start it offers excellent motion handling. The panel itself performs really well here, although some limitations typical of VA panels are still visible. Motion blur is relatively minor for this type of screen, but with faster motion (especially on darker backgrounds) it can still be noticed, particularly when compared with the same image on OLED TVs.

There are already a few televisions on the market with the label “for gamers” that, in practice, don’t understand what that means. The LG B5 is not one of them. Everything here is spot on – there are four HDMI 2.1 ports, it has 120 Hz, VRR, and ALLM, and it even has a Game Bar that is actually useful, not just looks good in the brochure. You connect your console – it works. You set 4K at 120 Hz – it works. You have an Xbox and want to play in Dolby Vision – it works too. And this is not in the sense of “theoretically supports”; it really turns on, looks good, and you don’t need to fiddle with the settings for half an hour. Additionally, there’s the HGiG picture mode that LG implemented correctly – which means HDR in games doesn’t turn the screen into a flash lamp, but shows exactly what it should. There are no surprises here, no strange limitations, no “buts.” And you know what? That’s how it should be. Cheers to the LG B5!

In terms of gamer features the UR8S performs really well. The TV supports practically everything you can expect from a modern console or PC display. It offers ALLM, VRR and 4K at 120 Hz. There is also Dolby Vision in Game Mode, so when using, for example, the Xbox Series X you do not have to give up that HDR format. PC gamers get even more options. The panel can run at 4K at 180 Hz, and dropping to Full HD can raise the refresh rate to as much as 330 Hz. There is also a Game Bar that lets you quickly check key information and change gaming-related settings. The only clear omission is a correct implementation of HGiG. With it enabled the TV still alters HDR brightness mapping, so we do not get the effect intended by that standard. Aside from that, the UR8S is very well prepared for both consoles and a powerful PC.