LG UT8100 (IPS) vs Hisense U7S Pro

The LG UT8100 television unfortunately does not meet expectations in the HDR effect category. The peak brightness of only 300 nits on the luminance graph is significantly below the required value to fully enjoy HDR effects. In practice, the image resembles SDR quality more than true HDR, which is particularly evident in demanding high-contrast scenes. The coverage of the DCI-P3 color palette is only 82%, which further limits the ability to present vibrant and rich colors. Instead of impressive visual experiences, we get a muted and washed-out image. For those looking for a television to fully utilize HDR content, the LG UT8100 model proves to be highly disappointing.

Let’s start with the fact that the U7S Pro is an impressively bright TV — in calibrated mode our measurement equipment showed a staggering 2200 nits of peak brightness!

As we know, peak brightness on test patterns is one thing, and actual film scenes are another. Unfortunately, in real video material the backlight output drops noticeably. The TV can still exceed the 1000-nit mark in the most demanding moments — which is still a great result and fits the mastering standards of most HDR films — but the real challenge lies in the aggressively tuned local dimming algorithms. Because of them, small, bright details like stars or the moon in a night sky are noticeably dimmed. The TV tries at all costs to maintain deep black, which is understandable, but unfortunately this comes at the expense of HDR’s dynamic range and brilliance.

The color reproduction is worth praising. The new U7S Pro is a QLED design that provides very wide color gamut coverage. Unlike last year’s model (U7Q Pro), this year’s variant is a true QLED, not a solution based on a PFS filter. As a result, color saturation has increased noticeably, and coverage of the most demanding BT.2020 color space has topped 81%.

The Filmmaker Mode on LG UT8100, although theoretically the best for watching movies, has significant flaws. The biggest issue is white balance – drops in blue color cause noticeable yellowing of the image, visible in both HD and 4K content. These errors are confirmed by the measurement results in the Colour Checker test, which indicate significant deviations in color reproduction.

As for brightness characteristics, both HD and 4K content feature a high tonal boost. The gamma curve in both cases remains well below the reference value of 2.4, leading to excessive brightening of darker elements in the image. A similar problem is evident in the EOTF curve – in the case of 4K content, the TV struggles with proper brightness management, resulting in issues with screen brightness. This means that the factory settings of this model require significant adjustment to achieve better image quality.

We tested the U7S Pro, as we always do, in the best factory-tuned picture mode, Filmmaker Mode. The colors can be judged in two ways. The most disappointing was the profile intended for watching SDR content, i.e. traditional broadcast TV, YouTube, and other less demanding material. The image there was clearly yellowish, which turned out to be a direct consequence of a poorly set white balance. As our charts show, there's a large deficiency in the blue component, which drastically affected the overall color temperature. You can see this clearly on the ColorChecker charts and on the color gamut graphs themselves, where most samples shifted toward yellow. Fortunately, the factory HDR mode performed much better. There, color errors hovered around a Delta E of 3, which is a solid result.

After calibrating the Filmmaker Mode, the gamma has been aligned to practically ideal, reference values, which significantly improved the overall tonal characteristics in HD content. 4K HDR content also looks better, although some issues are still visible at the end of the graph, where the curve deviates from the ideal. The EOTF curve performs worse, as the television struggles to maintain appropriate brightness values. As a result, the image in some scenes may be overly bright or slightly dimmed, which stems from the device's design. Nevertheless, the calibration has brought significant improvements, especially in the case of HD content, where tonal balance and color reproduction are now at a much higher level.

We know, however, that Hisense is capable of much more, as previous generations have shown, so we simply couldn't leave the U7S Pro's factory flaws in everyday content as they were. As always in such cases, we had the TV professionally calibrated. The result? The process brought a massive change. After manually correcting the white balance and filling in the missing blue component, the annoying yellow cast vanished as if it had been wiped away. Whites became naturally clean, and skin tones gained a proper, healthy hue. Importantly, the calibration not only tamed the finicky SDR mode but also squeezed the maximum potential out of the panel, reducing average color reproduction errors to levels almost imperceptible to the human eye. The only thing we still have to fault after the whole process is the nature of Mini-LED backlighting and its specific interaction with the HDR signal. Aggressively tuned local dimming algorithms quite strongly interfere with the EOTF luminance curve. As a result, the backlight doesn't always align with the creator's intent — depending on the scene, the curve can run noticeably above or below the reference, which in places disrupts the ideal dynamics of the HDR picture.

The fluidity of tonal transitions is also correct, although the effect depends on the settings. The update improved the functionality of smooth gradation, smoothing transitions better than before, but introduced minor issues with loss of detail, e.g., on textures.

Image scaling on LG UT8100 performs very well. The image presents itself decently, without major issues with edge aliasing. Details are preserved at a satisfactory level, which makes lower-resolution materials look really solid on this TV. As a result, users can enjoy watching older content without obvious quality flaws.

The digital processing of lower-quality signals is top-notch here, thanks to the MediaTek Pentonic 800 processor used in the U7S Pro. Upscaling, the TV's ability to pull lower-resolution content up to 4K, also performs well. We didn't notice any unnatural, sharp contours on screen, and our test image with the model simply looked attractive.

LG UT8100, equipped with a 60 Hz display, will be especially suitable for people watching movies. The television offers the TruMotion system with de-judder effect adjustment, allowing users to customize the fluidity of the image – from more choppy to exceptionally smooth, reminiscent of a soap opera effect, depending on user preferences.

The Hisense U7S Pro uses a panel with a maximum 165 Hz refresh rate at 4K, and in game mode it can even reach 330 Hz at Full HD. However, it's worth remembering that those highest numbers don't matter much in everyday use, because most content still supports at most 120 Hz (for example when playing on a console). Even so, the TV handles motion quite well and performs well for an LCD design.

There's little to fault about the smoothness itself. In the menu you'll find a motion smoothing feature called "Motion Enhancement", which hides two sliders: blur reduction and judder reduction. They allow manual adjustment of the smoother, which works well for both movies and sports, effectively improving the raw TV signal.

LG UT8100 offers basic features for gamers, such as ALLM and Game Bar, which makes access to settings easier. The TV also supports HGiG, which improves image quality in HDR games. Unfortunately, the lack of support for Dolby Vision and VRR limits the capabilities of the device, as does the 60 Hz panel, which excludes support for 120 Hz resolution. This model will be more suitable for less demanding gaming applications.

If you plan to connect a console or PC to the U7S Pro, you'll be more than happy – this TV is great for gamers. Hisense spared no expense and put in four HDMI 2.1 ports with full 48 Gbps bandwidth. So you won't have to juggle cables, since every port supports the full feature set. There's automatic low-latency mode (ALLM) and VRR, which works across a wide range from 48 Hz up to a cosmic 330 Hz. Of course that 330 Hz is for now a gimmick for owners of powerful PCs, because consoles are capped at 120 Hz anyway, but it's good to have that headroom for the future. The Game Bar is also really useful while gaming. It's a handy in-game menu where, without leaving the TV's main settings, you can quickly change the picture mode, enable a crosshair in the center of the screen, or even switch to an ultra-wide aspect ratio, which PC sim fans will appreciate. The only downside worth knowing about is the incorrect implementation of HGiG in games. The TV ignores the console's instructions for HDR10 output and keeps forcefully altering the image, trying to "improve" it its own way. Because of that, properly configuring HDR in the console menu (where you set brightness using the logo/checkerboard pattern) is a bit more difficult.