TCL C655 / C69B 98' vs Hisense U7S Pro

The quality of the HDR effect on TCL C655 / C69B looks quite promising. The average value in test patterns is about 450 nits, which already allows you to feel the brilliance of light effects and better image dynamics. However, as previously mentioned, this effect can be somewhat muted by slight differences in bright and dark colors, resulting from the lack of local dimming technology. However, the coverage of the DCI-P3 color palette at 94% deserves high praise, and this is possible due to the use of a quantum dot (QLED) matrix. As a result, colors are vibrant and well-reproduced when watching HDR content.

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 TCL C655 / C69B TV offers a movie mode that has been tested for color reproduction quality. Although this mode is called movie mode, it unfortunately has quite a few flaws that a director would certainly not want to see when recording their work. Starting with image analysis, it's worth looking at the white balance – both in HD and 4K HDR content, the white balance has significant errors. In both cases, the red color dominates, which makes the colors too warm, and the overall image takes on a pink or yellow tint. The Colour Checker test confirms these errors – the color samples shift to the wrong shades, affecting overall color fidelity. A lesser issue is the brightness characteristics. However, it is also not without flaws. The gamma chart shows a strong spike at the beginning, which can make the image excessively bright, and the EOTF curve responsible for brightness in 4K HDR content also has significant fluctuations – it is evident that the TV tries to maintain appropriate brightness, but it does not always succeed effectively.

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 movie mode of the television TCL C655 / C69B , the white balance has been adjusted, and the colors appear as they should – which is confirmed by only slight deviations in the Colour Checker test. The gamma is really good, which means the television shouldn’t have issues with brightness in low-resolution materials. Unfortunately, a similar EOTF characteristic is still noticeable, which is a natural phenomenon in televisions that do not have local dimming – they simply struggle to "shine" brighter in a given part of the screen. Despite this design limitation that cannot be bypassed, we recommend adjustments in the settings because the overall color presentation is really very good.

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 TCL C655 / C69B TV handles tonal transitions well in lower-quality content. The "Gradual Smoothing" feature at its lowest setting effectively eliminates visible banding, but it also results in a loss of detail, such as in the texture of objects. A plus is that it does not interfere with film grain, allowing the image to maintain a natural look.

In terms of digital processing, the TV adds a considerable amount of artificial sharpness, which may appeal to those who prefer a vivid image. For those who prefer a more subtle representation of details, this could be a drawback. Another downside is the rather aggressive overscan – the image is cropped, which leads to the loss of parts at the edges and limits the field of view.

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.

Unlike the smaller versions, the 98” model stands out with significantly better motion fluidity. Instead of the standard 60 Hz, this colossal screen is equipped with a full-fledged 144 Hz matrix, which opens up completely new possibilities – both for gamers and movie enthusiasts. With full motion smoothing, the TV provides incredible image fluidity, eliminating motion blur and improving the viewing comfort of dynamic scenes. It is worth emphasizing that this technology operates across the full refresh rate range, meaning there is no need to compromise between fluidity and quality. Additionally, the "Flicker Reduction" feature allows you to adjust the fluidity to your own preferences – you can opt for a more cinematic effect with visible frame drops or a maximally smooth image.

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.

The 98-inch TCL C655 / C69B is excellently equipped for gamers. Full-fledged HDMI 2.1 ports and a 144 Hz panel allow you to enjoy games in 4K resolution at 120 Hz, providing smoothness and responsiveness that will impress even the most demanding.

The TV supports Variable Refresh Rate (VRR), which eliminates screen tearing, and the Automatic Low Latency Mode (ALLM) ensures that games start instantly, without the need to manually switch settings. There’s also support for Dolby Vision and HGiG, making the image quality in games even better - details are sharp, colors natural, and contrast perfectly balanced.

Additionally, the TV offers a dedicated gaming panel that allows for quick adjustment of image settings without having to leave the game. It’s a device that meets practically all the requirements of the modern gamer.

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.