Samsung OLED S95H (S99H) (QD-OLED) vs Hisense UR8S

When it comes to pure brightness, the S99H is an astronomically bright TV. Its peak brightness in film scenes can exceed 2,800 nits. Whatever the scene, you can expect powerful HDR effects that are almost blinding, which is exactly what we want from a top‑tier display. By nature, an OLED panel can't maintain that extreme brightness in very bright, full‑screen frames the way it can with small bright highlights, but the results are still excellent. In a bright scene from The Meg the sun still exceeded 2,200 nits. That means the S99H was able to hold a higher brightness than most Mini LED screens on the market. In terms of brightness the S99H is currently the best OLED TV we've tested.

Colour gamut coverage

The S99H also handles colours exceptionally well, thanks directly to the QD‑OLED panel used here. Whether the test used synthetic test patterns or measurements with film material in the background, the results remained very high. The S99H easily covers almost 100% of the DCI‑P3 gamut, and in the most demanding space, BT.2020 it reaches nearly 90%. That's absolute top‑tier performance. These results match what we saw in the new SQD‑Mini‑LED displays, and in real film scenes they even surpass RGB Mini LED displays.

UR8S is a higher-end Mini-LED, so you could expect plenty of brightness. Indeed, on a synthetic test pattern peak brightness reached about 2200 nits. That’s a very good result, but as always what the TV does in normal film scenes matters much more. Here the results are a bit more mixed. In bright scenes with lots of light on screen, the UR8S can deliver very strong HDR. Brightness then gets up to around 1500 nits, so the image is very intense and has a lot of punch. It’s worse with small bright elements on a dark background. The TV noticeably dims them to preserve deep blacks and avoid excessive blooming. As a result, things like single stars or small specular highlights can be only around 200 nits. And here HDR is no longer as impressive. So the local dimming algorithm works effectively, but it comes at a cost — sometimes it sacrifices the brightness of small details too much in favour of contrast.

Colours

For RGB Mini-LED TVs, colours should be evaluated a little differently than usual. If we look only at the panel’s capabilities, the UR8S performs excellently. We measured about 94% coverage of BT.2020 and virtually full DCI-P3. Those are among the highest figures currently seen in LCD TVs, and this is where the potential of the RGB backlight is most apparent. The problem is that this potential isn’t always used in real scenes. When we ran the same measurements on patterns overlaid with a film-like background, saturation of some colours started to fall noticeably. Individual zones can’t always control the three RGB components with the same precision when the scene becomes more complex. It’s most noticeable with blue and magenta. On simple test patches they can look very strong, but in tougher scenes samples of those colours clearly shrink. In other words, the UR8S has huge potential, but the TV can’t always take full advantage of it in every scene.

Samsung offers a whole host of picture modes and features, but we traditionally recommend choosing FILMMAKER mode, especially if you want the most faithful rendering of the creators' intent. Out of the box the TV is tuned very well, though it has minor flaws. These are mainly a slight deviation in white balance in SDR content and a slightly low gamma. As a result, the picture in a dark room can be a little too bright compared with the reference value of 2.4, which is the standard for watching films with the lights off. These are, of course, small issues, because overall colour reproduction remains very good and the errors in ColorChecker measurements are not large. However, we know that for a screen of the S99H's calibre you can and should expect even more, so we subjected it to professional calibration.

For evaluating the factory colours we used Filmmaker mode, which is supposed to show the image as close as possible to how the content was prepared. And if you look at the white balance alone, the UR8S performs quite well. There’s no strong tint that immediately jumps out, although as brightness increases a bit too much blue and red start to appear, with a corresponding lack of green. Colour errors are therefore visible in measurements, but the image itself doesn’t look bad.

We have much bigger reservations about how the UR8S manages image brightness. In SDR the gamma stays around 1.9–2.0 for most of the range instead of the target 2.4. In practice this simply means the image is too bright, especially in the midtones. Shadows are lifted too much, so the picture loses some depth. A similar tendency is visible in HDR. The EOTF curve sits above the reference value for a large part of the range, so the UR8S again brightens the image more than it should. This isn’t a case of the TV lacking brightness, because it has plenty, but of how it manages that brightness. As a result, HDR material can look very striking, but not always exactly as it should.

After professional calibration, FILMMAKER mode looks practically perfect. Because Samsung offers a rich set of advanced calibration controls, we were able to tune the colours to an almost perfect level. Above all, we managed to even out the white balance and the gamma curve, which resulted in noticeably improved contrast and correct image modelling. In a profile prepared like this there really isn't a single thing to pick apart or call a fault. After calibration, the S99H can deliver an essentially reference-quality picture.

Hisense offers quite a lot of calibration options, and in SDR you can achieve a really good result with them. After adjustment the white balance is practically even across the whole range, and colour errors fall to very low values. The UR8S can be set very precisely here. HDR looks a little different. The white balance can also be noticeably improved, although at the highest brightness levels larger deviations start to appear. Most interesting, however, is the behaviour of the EOTF curve. Even after correctly setting it on test patterns, the UR8S can still interpret brightness in its own way when watching films. Depending on the scene, parts of the picture are slightly brightened and others darkened compared with how they should look. This shows that the algorithms controlling the backlight have quite a large influence on the final image. Calibration therefore allows colours to be improved very well, but we are not able to completely 'turn off' the way the UR8S manages brightness in HDR.

Upscaling and digital image processing are handled by Samsung's proprietary NQ4 Gen3 processor. It copes very well with scaling lower-resolution content to 4K. The picture is clear without looking artificial or overly sharp. The only fairly specific drawback appears with very old material recorded at 480p or lower. In such cases the TV can slightly crop the edges of the image.

The processor also does a decent job with artefacts visible in low-bitrate material, for example in heavily compressed YouTube videos. The noise reduction function effectively smooths the picture and reduces posterisation, but it works quite aggressively. It can remove not only unwanted artefacts but also some fine detail, and even natural film grain. We, wanting to preserve maximum fidelity to the source material, chose not to use it. However, if someone values a clean, as-smooth-as-possible image more than keeping every detail, it may prove useful.

The big plus of the UR8S is its 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 poorer-quality material. The feature responsible for this effect works effectively without overprocessing the picture. Even on a medium setting it can noticeably reduce visible banding and artefacts without heavily blurring details. Upscaling itself also performs very well. Lower-resolution content is displayed cleanly, edges look natural, and the image isn’t over-sharpened. The UR8S simply copes very well with weaker signals, and in that respect it’s one of its clear strengths.

Another major advantage of organic panels is very good motion handling. Thanks to the pixels' near-instant response time, the Samsung S99H shows virtually no smearing. Fast-moving objects don't produce visible halos or trailing artefacts, so the TV performs very well for both sport and gaming. One quirk of OLED screens compared with LCD is the way they render low-frame-rate material. With very slow camera movement the picture can appear noticeably more juddery. This can be quite effectively mitigated using frame interpolation. Samsung lets you adjust judder reduction and motion blur reduction separately, so it's easy to find a compromise between a smoother picture and preserving the cinematic feel of the content.

The UR8S is equipped with a panel that has a native 180 Hz refresh rate, so right away it offers very strong potential for smooth motion. The panel itself performs really well, although some limitations typical of VA panels are still visible. Smearing is relatively low for this type of screen, but during faster motion, especially on darker backgrounds, it can still be noticed, particularly if you compare the same image to OLED TVs.

Samsung S99H is also a top TV for gamers. It offers almost every possible and useful feature... well, perhaps except the obvious lack of Dolby Vision for the Xbox console. It’s equipped with four full-fledged HDMI 2.1 ports with the full 48 Gbps bandwidth. That makes it easy to use frame-rate synchronization VRR or automatic low-latency mode (ALLM). This year Samsung also has no issues with proper HGiG support, so HDR setup on a console is quick and free of unnecessary complications. Samsung is also known for interesting extras in its TVs. In the Game Bar menu you’ll find options to add an on-screen crosshair, enlarge the minimap, or change the aspect ratio of the displayed image (PC).

Particularly noteworthy is Samsung’s feature: Game Motion Plus. It’s Samsung’s proprietary motion-smoothing system that uses interpolation to boost smoothness in games. Input lag then rises to around 40 to 50 ms (depending on the strength of the setting), which, compared with the competition, is an excellent result. The system makes gameplay noticeably smoother. So if someone has their eye on a demanding game (e.g. GTA 6 😉) that runs on a console at only 30 fps, the S99H can display it much more smoothly than competing models.

In terms of gamer features the UR8S stacks up really well. The TV supports virtually everything you'd expect from a modern console or PC display. It has ALLM, VRR, and 4K at 120 Hz. There's also Dolby Vision in game mode, so when using, for example, an Xbox Series X you don't have to give up that HDR format. PC gamers get even more options. The panel can run at 4K and 180 Hz, and dropping to Full HD can push the refresh rate as high as 330 Hz. There's also a Game Bar that lets you quickly view key info and change gaming-related settings. The only real shortcoming is a proper implementation of HGiG. When enabled, the TV still interferes with HDR brightness mapping, so we don't get the effect intended by that standard. Apart from that, the UR8S is very well equipped for both consoles and a powerful PC.