Hisense UR9S vs LG OLED B6

The Hisense UR9S is without a doubt a show of strength from the Chinese manufacturer when it comes to luminance. On a synthetic test pattern the panel reached as much as 2600 nits, which is an impressive result. But you have to clearly separate lab results from film realities. In real material the UR9S behaves much more restrained. Peak brightness in balanced scenes hovers around 1500 nits. In demanding, dark shots—where the algorithms must at the same time preserve deep blacks and precisely light small details—brightness can drop drastically, even down to around 400 nits. The gap between the chart and reality is therefore huge. This is a direct consequence of conservative local-dimming behavior. When a bright object occupies a large portion of the frame, the system can easily maintain a high luminance. But in night scenes the priority becomes protecting black levels and fighting the halo effect (unsightly glows around bright edges). To avoid degrading contrast, the TV drastically limits its light output. Even so, the UR9S can still produce a very powerful, engaging HDR effect that impresses in bright, spectacular sequences.

Color gamut coverage

On test patterns the Hisense UR9S performs excellently in terms of color. DCI-P3 coverage is nearly 100%, and BT.2020 coverage reaches 93%. Those are figures even the best QD-OLED TVs don't achieve. But again, synthetic measurements are one thing and movies and series are another. In real-world scenes the numbers fell to 93% for DCI-P3 and 81% for BT.2020. That's still great, but the advantage of RGB Mini LED is no longer as dramatic as manufacturers promise in marketing materials. You could even say their capability is now close to TVs equipped with quantum dots, the so-called QLEDs. Why does this happen? Largely, color reproduction depends on how the local dimming zones operate. When a highly saturated color appears next to white or another, more complex element, a single zone must handle both parts of the image at once. Under those conditions the backlight cannot maintain extreme saturation of a given color on the screen, because the emitted light takes on a character closer to white. Hisense refined this quite well in the UR9S, but still not enough for the TV to sustain such high color saturation in every situation.

The LG B6 is a moderately bright OLED. After calibration it reaches about 800 nits, roughly 200 nits more than last year’s B5. That’s thanks to the new budget OLED SE panel from LG Display. In practice it simply gives a bit more headroom and makes HDR in many scenes look fuller than on last year’s lower-tier OLEDs. That doesn’t mean the B6 has no limits. In very bright shots, when a large part of the screen is strongly lit, brightness can drop below 400 nits. This behavior is typical for OLED TVs (especially those from this segment) and that’s when you see the biggest difference versus more expensive models. All things considered, we rate the B6’s results as really solid. It’s still not a TV for breaking brightness records, but the HDR effect is strong enough that you can really feel the step up from ordinary SDR in films.

Color gamut

Using the OLED SE panel has slightly affected wide color gamut coverage. Compared with last year’s model, results fell by a few percentage points. DCI-P3 reaches about 96%, and BT.2020 around 71%. That doesn’t mean the colors on the LG B6 are weak. In most movies and series they look lively, well saturated and simply pleasing to the eye. You only notice a difference in very bright, highly colorful scenes. Then colors lose some intensity compared with QD-OLED panels. This comes from the WOLED panel construction. Besides red, green and blue subpixels it also uses a white subpixel that helps boost brightness. It comes at a cost: at very high luminance some color is effectively “diluted” by the white light, so saturation of some colors can be slightly lower. In everyday use this isn’t a big issue, but you can notice it in the most demanding scenes.

We tested the Hisense UR9S in Filmmaker Mode, which, by default, provides the most accurate image reproduction. In HDR content the TV performed quite well in that regard. White balance did not show large errors, and the luminance curve, though typical for Hisense, was at a reasonable level. So the image was neither overly bright nor noticeably color-shifted. The same mode fared much worse with SDR content, meaning the content we watch most often, such as broadcast TV or YouTube. White balance was strongly shifted toward red and blue, giving the image a slightly pink tint. This also affected the gamma curve. Instead of approaching the reference value of 2.4, it was closer to 2.0, which made the image look too bright, especially in midtones and darker areas. Filmmaker Mode therefore remains the best out-of-the-box choice, but it's not without flaws.

We tested the LG B6 in Filmmaker Mode, which is the best picture setting available right out of the box. ISF modes deliver very similar results, but in our tests we always stick to Filmmaker Mode for better comparison with other TVs. Each of those modes is, after all, a much better starting point than Vivid or Eco mode, where the picture is heavily boosted and noticeably less natural. With SDR content, the factory settings perform really well. Color errors are small, gamma behaves properly, and the image looks natural during ordinary viewing and does not seem overly "pumped up." It's a bit worse with HDR. When you play that kind of content you can quickly see that the white balance hasn't been set perfectly. Too much blue and red causes the image to shift toward a slightly pink tint. This is also confirmed by measurements of the color gamut and the ColorChecker, where samples clearly drift in that direction. It's not a flaw that completely ruins the picture, but you can notice it in HDR films. So people who care about the most faithful image should consider the calibration we describe later in the review.

After calibration we saw the biggest improvement in SDR mode, though we also refined the HDR picture. Hisense offers a lot of calibration settings in the TV's menu, so we could precisely correct the white balance and other image errors. The most important change was removing the pink cast that had previously been clearly visible in SDR content. After calibration the picture looks much more natural, especially in everyday content such as TV or YouTube.

Color reproduction errors on the ColorChecker chart are very small after calibration. The vast majority of colors fall below a Delta E of 2–3, meaning at a level very hard for the human eye to detect. The only thing we couldn't completely eliminate is the characteristic HDR tone mapping typical of Hisense TVs. It affects how brightness is distributed in movies and can subtly "beautify" the image, rather than strictly following the creators' intent. For a less experienced viewer this can produce a stronger "wow" effect, but it won't always fully match how the content should look.

During calibration we focused primarily on HDR content, because that's where the factory settings required the biggest corrections. We didn't neglect SDR mode, though, which after adjustment was brought almost to perfection. Colors are very accurate and brightness is handled as it should be. The biggest improvement in HDR came from correcting the white balance. After removing the excess red and blue, the pinkish tint disappeared and the image became much more natural. Skin tones, whites and all colors that had been shifting toward magenta 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. The LG B6 can therefore deliver a very accurate image, especially for the manufacturer's entry-level OLED model.

Digital image processing has been one of Hisense's strengths for two years, and the UR9S is no exception. The manufacturer uses the Hi-View AI Engine RGB processor, which is essentially based on the well-known MediaTek Pentonic 800 platform, previously used, among others, in the U8Q. The TV handles upscaling lower-resolution material to 4K and low-bitrate content very well, where various compression-related artifacts are common. Thanks to a feature called "Smooth and Gradient Picture", the image remains detailed without appearing overly sharpened or artificially smoothed. When watching regular TV or older, lower-quality material, the UR9S can pull a surprising amount out of them. In terms of digital image processing, this is one of the most refined LCD TVs we've had the chance to test.

The LG B6 handles lower-quality sources very well. Much of the credit goes to effective digital image processing, which can mask some source imperfections without overly smoothing the whole scene. The feature "Smooth Gradation" proves particularly useful. It can significantly reduce posterization, which we mentioned earlier, especially in darker areas of the image. The safest choice remains Low or Medium. The function still effectively smooths harsh tonal transitions, but does not yet interfere too much with fine details. The most dedicated purists can, of course, leave it off. Upscaling to 4K also performs very well. Full HD and 720p content retain a good amount of detail, and the image is neither overly sharpened nor excessively blurred. Some limitations become noticeable only with very poor sources below 720p, where the smallest subtitles and fine elements are not always perfectly sharp, but this is true for almost every other TV on the market.

The Hisense UR9S is one of the first TVs on the market with a 4K panel and a 170 Hz refresh rate. In the larger sizes, 75 and 85 inches, that goes up to 180 Hz. Such a high refresh rate will mainly be useful to owners of very powerful PCs. We still watch movies and series mostly at 24 fps, and sports broadcasts at 50 fps, so in everyday use panel response time and the performance of motion smoothing are more important. In that respect the UR9S performs very well. Motion blur is minimal, as our UFO test also confirmed. Moving objects do not leave a pronounced trail, so the picture remains clear even in fast scenes.

One of the biggest advantages of OLED panels is their very fast pixel response time. This keeps the image sharp and prevents the visible smearing that often appears on LCD TVs. However, there is a downside. During slow camera pans, motion can look more choppy than on LCD screens, where the slower panel naturally masks some of that effect. Fortunately, on the LG B6 you can easily soften this with TruMotion. With the motion smoothing properly adjusted, you can achieve smoother motion without giving the picture an excessive soap-opera effect.

The Hisense UR9S is very well prepared for gaming. All three HDMI ports are HDMI 2.1 and offer the full 48 Gb/s bandwidth. The TV supports 4K at 170 Hz, and on larger screen sizes even 180 Hz. On top of that there are VRR, ALLM, NVIDIA G-Sync and AMD FreeSync, so in terms of core features there’s little to complain about. PC gamers can also enable DLG mode. After switching the resolution to Full HD the refresh rate can increase to as much as 330 Hz. That’s probably an option for a narrow group of users, but it shows how much headroom the panel has. Hisense also added a Game Bar that lets you quickly change key settings, check the refresh rate, or enable a reticle and minimap zoom. The biggest downside remains the lack of a properly working HGiG. The TV keeps using its own tone mapping, which makes setting HDR on a console a bit more difficult. In our case values between 1500 and 2000 nits worked best, but it’s worth checking which setting still preserves all the details in the brightest parts of the image.

LG OLED B6 offers a powerful set of advantages for gamers; it's simply a complete platform for PS5, Xbox Series X/S, or a solid PC. It has four full-size HDMI 2.1 ports with 48 Gbps bandwidth, so you can skip the annoying cable swapping when you want to connect several newer devices at once. We get the full suite of sync technologies – from classic VRR to G-Sync and FreeSync. The screen seamlessly matches the refresh rate to the frame output produced by the console or graphics card. Of course ALLM is included: the B6 automatically detects a running game and immediately cuts input lag to a minimum. HDR handling is also excellent. The TV supports Dolby Vision, and a properly implemented HGiG standard means that after an initial calibration in the console settings the picture won’t suffer from blown-out highlights or lost detail in bright areas. The cherry on top is the Game Bar. Instead of digging through the full menu during gameplay, one click lets you adjust shadow visibility, tweak selected settings, or simply check the display’s current operating mode. All of this makes the LG B6 a great choice for gamers.