LG UR781 vs Hisense U7S Pro

In HDR mode, the LG UR781 falls short of the brightness expected for high-quality HDR experiences. Tests across multiple panels revealed a brightness of around 200 nits, which aligns more closely with SDR standards. As a result, HDR effects lack the desired impact, with bright and dynamic scenes appearing less striking than they should.

The television also exhibits limitations in colour reproduction under HDR settings. The colours may not appear as intense or rich as those on models that handle wide colour gamuts more effectively, leading to a less vibrant and dynamic image overall. Additionally, the LG UR781 struggles with accurate colour representation in HDR mode, which can result in muted content, particularly during daylight viewing when the image can lose its intensity.

Although the dynamic tone mapping feature helps optimise the image, it does not overcome these shortcomings. For users seeking a truly immersive HDR experience with vivid colours and bright highlights, the LG UR781 may not meet expectations.

Let’s start by saying that the U7S Pro is an impressively bright television – in calibrated mode, our measuring equipment indicated a staggering 2200 nits of peak brightness! This is an impressive result, considering that this model is positioned as mid-range.

However, as we know, peak brightness on test patterns is one thing, and actual movie scenes are another. Unfortunately, in real video materials, the backlight power clearly drops. While in the most demanding moments the television can still exceed the 1000 nit barrier – which is still a great result, perfectly fitting the mastering standards of most HDR films – the truly challenging aspect turns out to be the aggressively tuned local dimming algorithms. Because of them, small, bright details, such as stars or the moon in the night sky, are noticeably dimmed. The television tries at all costs to maintain deep black levels, which is of course understandable, but unfortunately, this comes at the cost of dynamics and the brilliance of the HDR effect itself.

The color reproduction is worth praising. The new U7S Pro is a QLED construction that provides very wide color gamut coverage. Unlike last year's model (U7Q Pro), this year's variant is now a “true” QLED, rather than a solution based on a PFS filter. As a result, color saturation has noticeably increased, and coverage of the most demanding BT.2020 space has exceeded the 81% barrier.

In Filmmaker Mode, the LG UR781 demonstrates the best factory-calibrated performance but exhibits notable flaws. The primary issue lies in white balance, where the graph indicates a drop in blue levels, resulting in a warmer image with a shift towards yellow tones. This deviation impacts the naturalness of colour reproduction, particularly in scenes with white or neutral backgrounds. The Test Colour Checker confirms that some colours deviate into incorrect shades, leading to a lack of true-to-life representation. This can diminish the realism of film scenes, with certain details appearing in inaccurate colours.

In terms of contrast, the gamma graph reveals a drop to a level of 2.0, below the optimal value of 2.4. This results in darker parts of the image appearing brighter than they should, reducing depth and dynamic range. Additionally, the EOTF curve shows an unnatural spike at the beginning, leading to over-brightness in the brightest areas of the image. This can cause a loss of detail in high-luminance scenes, further impacting the overall image quality.

We tested the U7S Pro model – as always – in the best factory-tuned picture mode, which is Filmmaker Mode. We can evaluate the displayed colors in two ways. The most disappointing was the profile intended for watching SDR content, such as traditional television, YouTube, and other less demanding materials. The picture was clearly too yellow, which turned out to be a direct consequence of a poorly set white balance. As our graphs show, there is a huge deficiency of the blue component here, which drastically affected the overall color temperature. This is clearly evident on the ColorChecker charts and the graphs of the color palette itself, where most samples veered toward yellow. Fortunately, the factory HDR mode performed significantly better – there, the color errors hovered around a Delta E value of 3, which is already a really solid result.

After calibration, the LG UR781 demonstrates commendable colour reproduction for SDR content. The calibration effectively improves white balance, yielding natural and balanced tones across various scenes. Gamma adjustments contribute to precise detail representation in shadows and highlights, enhancing overall image clarity. This results in a well-rounded performance for everyday use, with solid colour accuracy and well-balanced imagery in SDR mode.

HDR content, however, reveals the TV's limitations. The lack of support for a wide colour gamut restricts the depth and vibrancy that HDR is capable of. The EOTF curve deviates from the ideal, overemphasising details in bright areas, which introduces inaccuracies in colour representation. Tests using the Colour Checker confirm significant errors in colour reproduction. Additionally, the panel's relatively low brightness exacerbates these issues, diminishing the impact of dynamic range effects and causing colours to appear washed out.

While HDR mode highlights the TV's shortcomings, the improvements after calibration, particularly in SDR performance, are significant. Enhanced white balance and gamma adjustments greatly improve the viewing experience, providing more natural and consistent colour reproduction. Compared to its pre-calibration state, the LG UR781 now offers a much better performance for everyday use, especially in standard dynamic range scenarios.

However, we know that the Hisense company can do much more – as previous generations have proven – which is why we simply couldn't leave the factory flaws of the U7S Pro model in everyday content. As always in such cases, we subjected the television to professional calibration. The conclusions? This process brought about a colossal change. After manually adjusting the white balance and compensating for the deficiencies in the blue component, the annoying yellow tint disappeared like magic. The white became naturally pure, and skin tones gained the proper, healthy hue. Importantly, the calibration not only tamed the capricious SDR mode but also allowed us to squeeze the maximum from the panel's potential, reducing the average color reproduction errors to values almost imperceptible to the human eye. The only thing we have to nitpick after the entire process is the very nature of the Mini-LED backlighting and its specific cooperation with the HDR signal. The aggressively tuned local dimming algorithms significantly interfere with the EOTF brightness curve. As a result, the backlighting does not always work perfectly with the creator's intent – depending on the scene being viewed, the curve can noticeably run either above or below the reference, which at times disrupts the perfect dynamics of HDR image.

The tonality smoothing function on the LG UR781 yields mixed results. At the "low" level, it neither enhances image quality nor effectively diminishes film grain, making its impact relatively negligible. Increasing the strength of this function can soften gradations and reduce visible banding, but it risks over-softening the image in certain scenes, which may compromise the overall sharpness and detail.

As for image scaling, the LG UR781 struggles to deliver exceptional performance, particularly with lower-resolution content. The TV employs an artificial sharpness enhancement technique that introduces defined contours to create the illusion of sharper images. While this may appeal to users who prefer pronounced, vivid details, others seeking a more natural and authentic look may find this effect distracting or unrealistic. Ultimately, the perception of these enhancements will depend on personal preferences, with some users valuing the added sharpness and others prioritising natural image quality.

The digital processing of lower quality signals is at a very high level here, thanks to the MediaTek Pentonic 800 processor utilized in the U7S Pro. The upscaling itself, which is the TV's ability to enhance lower resolution signals to 4K, is also performing well. We did not notice any unnatural, sharp edges on the screen, and our test image with the model looked simply attractive.

The LG UR781 television provides decent motion fluidity for movies, primarily due to its "True Motion" feature. This option lets users fine-tune motion smoothing on a scale from 0 to 10, catering to different viewing preferences. Lower settings preserve a traditional cinematic effect with some judder, while higher settings create a smoother, more theatrical image. Although the latter deviates from the cinematic standard, it may appeal to viewers who prioritise seamless visuals.

However, performance declines when handling dynamic sports content and fast-paced games. Its 60Hz panel limits interpolation capabilities, meaning motion smoothness in movies can be improved, but motion blur cannot be effectively reduced. The absence of support for 120Hz and BFI (Black Frame Insertion) technology exacerbates this, causing fast-moving objects to blur. Moreover, the panel's slower response time further reduces sharpness in rapid scenes, which can be a drawback for gamers and sports enthusiasts seeking clear, fluid visuals in high-speed scenarios.

The Hisense U7S Pro features a panel with a maximum refresh rate of 165 Hz in 4K, and in game mode, it can reach up to 330 Hz at Full HD resolution. However, it's important to note that these highest numbers have little significance in everyday use, as most content supports a maximum of 120 Hz (e.g., while gaming on a console). Nevertheless, the TV handles motion quite well and performs really decently for an LCD construction.

There's hardly anything to complain about regarding fluidity. In the menu, we find a motion smoothness enhancer called "Motion Enhancement," which hides two sliders: blur reduction and judder reduction. They allow for manual configuration of the smoothness enhancer, which works well for both movies and sports, effectively improving the raw television signal.

The LG UR781 provides several features designed to enhance console gaming experiences but comes with notable limitations. On the positive side, it includes the ALLM (Auto Low Latency Mode) feature, which automatically switches the TV to a low-latency mode, optimising response times for gaming and benefiting fast-paced titles. The television also supports HGiG, ensuring HDR games are displayed enhancing the overall gaming experience. Additionally, the Game Bar feature allows gamers to quickly access and adjust settings during gameplay, offering added convenience. However, there are significant drawbacks. The TV lacks VRR (Variable Refresh Rate), which may result in screen tearing or stuttering, particularly during dynamic scenes. It also does not support Dolby Vision for gaming, limiting HDR picture quality in titles that use this format. The 60Hz panel restricts gameplay to 60Hz, excluding smoother experiences available at higher refresh rates like 1080p@120Hz, 1440p@120Hz, or 4K@120Hz. The absence of G-Sync or FreeSync technology reduces compatibility with systems designed to synchronise the frame rate between the console and TV, potentially affecting gameplay fluidity. The LG UR781 is a functional choice for casual gamers who value affordability and features like ALLM and HGiG. However, it falls short for those seeking advanced gaming features such as high refresh rates, VRR, or Dolby Vision gaming.

If you plan to connect a console or PC to the U7S Pro, you will be more than satisfied – this television is excellent equipment for gamers. Hisense didn't spare any expense and included 4 HDMI 2.1 ports with full bandwidth of 48 Gbps. You won't need to juggle cables, as each port will handle the full package of features. We have an automatic game mode (ALLM) and VRR, which works over a wide range from 48 Hz to a cosmic 330 Hz. Of course, those 330 Hz are currently just a gimmick for owners of powerful PCs, as consoles will still be limited to 120 Hz, but it's good to have that reserve for the future. The Game Bar also works very well during gaming. It's a handy menu bar for gamers, where you can quickly change the picture mode, turn on a crosshair in the center of the screen, and even change the aspect ratio to ultra-wide without going into the main settings of the television, which PC simulator fans will appreciate. The only downside worth noting is the incorrect implementation of the HGiG format in games. This means that the television ignores the instructions from the console regarding the image generated in HDR10 and constantly meddles with the image it produces, trying to "enhance" it in its own way. Because of this, the correct configuration of HDR in the console menu (where brightness is set on the logo/checkerboard) is somewhat complicated.