LG OLED C4 vs Hisense U7Q PRO

The HDR performance of the LG OLED C4 is impressive, firmly placing it in the higher tier. Most films exceed 700 nits, delivering a highly realistic image. While none surpass the 1,000-nit mark, the combination of these results with the TV’s infinite contrast and perfect blacks significantly enhances the visual experience. The final scene, with a full-screen flash of sunlight, is slightly less bright than the others but still maintains a solid level of brightness. Another highlight is the excellent DCI-P3 colour gamut coverage, which ensures incredibly vibrant colours. The HDR technology in the LG OLED C4 delivers exceptional colour and detail reproduction. The dynamic tone mapping feature optimises brightness levels, ensuring ideal light reproduction in every scene, even in the most demanding high-dynamic films.

U7Q PRO is truly a bright television. In synthetic tests, it achieved over 1500 nits, which is an outstanding result for this price range. Such brightness – at least in theory – allows for displaying HDR content as intended by creators, even in more demanding scenes with strong light. In practice, it can be very good, but not always perfect. In bright scenes with a large surface area – such as the test screen with intense sunlight from the movie "Pan" – U7Q PRO makes a huge impression. It can almost blind with light, which is definitely an advantage in the context of HDR content. Unfortunately, this is not always maintainable when a lot of small bright details appear on a dark background. In such moments, local dimming algorithms decide to dim some bright elements to maintain good black levels – and the side effect is that some details simply disappear from the frame. This is a classic compromise in mini-LED televisions – and U7Q PRO is no exception. However, with such a large number of dimming zones, one could expect a somewhat more mature algorithm responsible for controlling them. Fortunately, the overall reception of HDR content is very positive. U7Q PRO is not only bright but also colorful; thanks to the PFS LED (QLED) coating, the coverage of the DCI-P3 color palette is at 95%, and BT.2020 is around 73%.

The best factory mode on the tested television was "Filmmaker," which served as the basis for all evaluations. In terms of colour reproduction, this mode performed reasonably well; however, certain flaws significantly detracted from the overall viewing experience. The most fundamental issue was the white balance, which exhibited a noticeable dominance of red, skewing the image characteristics. This resulted in a pronounced yellow tint to whites and a general shift of all colours towards warmer tones.

The gamma, an equally crucial—if not more important—aspect, was notably lowered, leading to a marked reduction in contrast. Additionally, the television frequently lost detail at the start of the gamma curve. These issues were most apparent in SDR content.

When examining HDR materials, the same yellowing effect in the white balance was observed, as seen with SDR content. However, the EOTF curve, which replaces the gamma curve for HDR, was near perfect and left little room for criticism.

We tested the U7Q PRO in the best possible picture mode that this model offers – Filmmaker Mode. And indeed, it is this mode that performs best in terms of color reproduction. But that doesn't mean it's perfect. In our test unit, both in SDR and HDR content, the image had a slightly cooled tone. The white balance was shifted towards blue, which made the overall impression feel a bit "cooler." It's not glaring, but definitely noticeable – especially on white backgrounds that, instead of neutral, appeared slightly bluish. Additionally – as we mentioned earlier – the television tends to slightly brighten and oversaturate the image, which is also confirmed by the gamma and EOTF charts. All of this together means that without calibration the image may seem a bit unnatural – too cool, with slightly exaggerated dynamics. That's why we decided to conduct our own calibration – and its effects and charts can be seen below.

As mentioned, LG televisions come with advanced tools to facilitate an accurate calibration process. By utilising these tools, we meticulously adjusted the image to align with the director’s original vision. Without overstating, the results were outstanding. Both SDR and HDR content now achieve a level of visual fidelity that reflects how films are intended to be seen.

Examining the colour accuracy on the "ColourChecker" palette reveals impressive results, with almost all colour errors falling below a delta of "1," aside from two minor exceptions. Post-calibration, the LG OLED C4 demonstrated a marked improvement in colour reproduction, particularly in SDR and HDR modes. Testing the TV after calibration highlighted its capacity for delivering exceptionally accurate colours, underlining the high calibre of this model. The LG C41LA offers a stunningly precise colour palette, sure to satisfy even the most discerning viewers.

Thanks to calibration, we managed to tame the white balance in both SDR and HDR content. For SDR materials, the effect is really very good – the image becomes neutral, consistent, and simply pleasant to view. Everything looks as it should.

The performance in HDR is a bit worse. Although the white balance looks correct and overall the image gains in naturalness, unfortunately, delta E errors remain noticeable. Why? Because Hisense does not give us full control over how the U7Q PRO manages brightness in HDR mode. This is where the limitation appears. When we look at the EOTF curve for HDR content, we can clearly see what we mentioned earlier – at the beginning of the graph, there is a noticeable drop, meaning the television dims the smallest sections more than it should. On the other hand, the brightest elements can be illuminated a bit too much. As a result, some details are lost, others are too aggressive, and overall control over brightness does not always align with what we are trying to achieve during calibration.

Does the image look better after calibration? Definitely yes, in terms of color. But when it comes to managing brightness in HDR, we have to accept that the Hisense U7Q PRO will do it its own way.

Let us revisit the function responsible for smooth gradation and consider its role in improving lower-quality materials. The default smoothing of tonal transitions, while decent, can be further enhanced. The feature includes a slider for adjusting its strength, and we recommend selecting the first option. This setting strikes a balance, offering excellent results without compromising important details through unnecessary blurring.

The image scaling on the LG C4 is commendable, though not entirely without flaws. By default, the image appears slightly sharper, though not to an intrusive degree. While jagged edges on elements like trees are occasionally visible, this issue is relatively minor compared to similar offerings from other manufacturers.

If someone happens to come across older materials where the issue of color banding appears – Hisense has a solution for that. In the U7Q PRO, we find a feature called "Smooth and Gradient Picture." Set to the "Medium" level, it works really well – it eliminates most of the gradation issues while not smoothing out the entire image, like blur in Photoshop. 😉 Film grain remains, details do not disappear – this is exactly how it should work. Kudos for the implementation!

As for scaling weaker materials, it’s just good. It’s not at the level of the most expensive TVs with advanced upscaling, but older content looks good. There is some mild aliasing at very low resolutions, but that’s completely normal and hard to avoid. On the plus side – even with the oldest materials, there is no overscan effect; the image is not cropped or artificially stretched.

The LG G4 supports a maximum refresh rate of 144 Hz, achievable only when connected to a high-performance PC. Otherwise, the television operates at a maximum of 120 Hz, the recommended setting for viewing sports or content with fast-paced motion. For those prioritising smooth image quality, LG has included a versatile motion smoothing feature called "TrueMotion." This function is split into two adjustable sliders: De-Blur, which sharpens moving images, and De-Judder, which reduces jitter. Both sliders offer a range of settings from 0 to 10, enabling users to fine-tune the motion smoothness to their preference.

The LG OLED C4 boasts an impressive average response time of less than 1 millisecond, as confirmed by our measurements. This results in exceptional image clarity, far surpassing LCD televisions, which often have response times of several milliseconds. This clarity is evident in tests like the "UFO Test," where no trailing blur is visible behind moving objects.

“Speed” – this word was mentioned most frequently during our tests of the U7Q PRO. The television is equipped with a 165 Hz panel, which is impressive in itself – especially since we are talking about a model in the mid-price range. Of course, PC gamers will benefit the most from its full capabilities, but even during everyday viewing, it is evident that this is a fast and efficient panel. Like most modern televisions, the U7Q PRO can also enhance the smoothness of movies that are primarily shot in 24 frames. In the menu, there is a slider that allows you to adjust the effect to your preferences – from a more cinematic feel, with subtle motion, to stronger smoothing with the characteristic “soap opera effect.”

The LG C4, like nearly all OLED televisions from the manufacturer, excels in its compatibility with consoles and PCs. With the inclusion of four full-bandwidth HDMI 2.1 ports supporting 48 Gbps, the TV incorporates a range of features to enhance the gaming experience. Notably, it offers simultaneous support for FreeSync and G-Sync, making it an ideal choice for gamers using AMD or Nvidia graphics cards. For those seeking the best possible gaming quality, the integration of HDR Dolby Vision and HGIG mode is particularly impressive. HDR Dolby Vision operates with remarkably low input lag across all settings, ensuring smooth and responsive gameplay.

A standout feature in LG's televisions is the GameBar, which allows users to adjust settings in real-time without leaving the game. This includes options for customising the image for viewers with visual impairments, a thoughtful addition. Additionally, enabling VRR (Variable Refresh Rate) does not result in a loss of contrast—a benefit of the OLED panel's self-emissive technology, eliminating the need for conventional backlighting. While some slight flickering of grey tones may occur, this is a characteristic of VRR technology across all manufacturers.

In summary: The LG C4, like the brand's other OLED models equipped with high-refresh-rate panels and HDMI 2.1, provides a seamless and immersive gaming experience. For gamers demanding top-tier performance, this TV is an outstanding choice.

The Hisense U7Q PRO is a television that seems almost designed for gamers. It has practically everything you could expect from a gaming screen: variable refresh rate (VRR), automatic mode (ALLM), and as many as four HDMI 2.1b ports with full bandwidth of 48 Gb/s. Additionally, there is a clear and quite functional Game Bar, as well as a well-implemented Dolby Vision GAMING mode that works seamlessly with Xbox Series S and X consoles.

Sounds like perfection? Well, almost. Unfortunately, Hisense has yet to implement the HGiG feature, which is the system's limit on tone mapping on the TV's side. This means that when configuring HDR brightness on the console, we do it "by eye" or look for settings in online guides because the screen doesn't show the real range of its brightness. It's a pity - because HGiG makes it easier to match the console to the TV and helps avoid clipping or overly dark scenes in HDR games.

Fortunately, the other elements work very well. Signal delay (input lag) is low, responsiveness is excellent, and the handling of other functions is flawless. And although not everything worked perfectly, the U7Q PRO can still be recommended to gamers without hesitation.