LG OLED C4 vs SONY BRAVIA 3

The results of HDR materials are definitely among the better ones. Practically every film significantly exceeds the 700 nits barrier, which allows for a very realistic image. Of course, none of them surpasses the magical thousand, however, the combination of such results along with unlimited contrast and black effectively boosts the visual outcome. The last of the scenes, featuring a fullscreen sun burst, is indeed less bright than the others, although it still represents a respectable level. It's also worth mentioning the excellent coverage of the DCI-P3 colour palette, which will enable the achievement of exceptionally vivid colours.

Bravia 3 does not hide the fact that it belongs to a group of TVs that are rather modest in terms of brightness. Our measurements showed around 370 nits, which is a value balancing on the brink where any HDR effect can still be discussed. For some, this is an acceptable level, while for others it is more typical for SDR materials, where spectacular flashes or vivid contrasts are not expected. The impression is that this is not a TV for those focused on the highest image quality in demanding film content. However, this does not mean that there are no advantages to be found here. Compared to its predecessor, the X75WL, the Bravia 3 has gained an additional PFS filter, which works similarly to solutions known from QLED technology. Thanks to this, the DCI-P3 color gamut has been significantly expanded, reaching over 91 percent, which in practice results in more saturated colours and a more pleasing texture of the image. As a result, even everyday content looks a bit more vibrant, and films and series can surprise with their colourful presentation, despite limitations in brightness itself.

The best factory mode implemented in the tested television was "Filmmaker". That was the one we used during all tests. This mode, in terms of colour reproduction, turned out to be quite decent, although other flaws effectively detracted from the enjoyment of the viewing experience. Starting with the most basic one, which is white balance, it was easy to notice that this was marked by a dominance of red, which completely altered the characteristics of the picture. We could see a strong yellowing of the whites and a shift of all colours to warmer tones. The gamma, which is a graph as equally important, if not more so, was quite severely reduced, resulting in a significant drop in contrast, except for the start of the graph, where the television insidiously lost details. That’s all regarding SDR materials. Looking closely at films with a wide dynamic range, we can observe exactly the same phenomenon of white balance yellowing as in films with a standard colour palette. The EOTF curve, which replaces the gamma chart for us, is practically perfect and cannot be faulted.

We primarily tested the Sony Bravia 3 in movie mode, which immediately turned out to be the best choice among the factory settings. It's not a perfect picture, but compared to the eco mode that the TV suggests straight out of the box, the difference is evident and definitely better. In movie mode, there is a noticeable issue: the picture seems too warm, which is due to the lack of blue colour in the white balance. Nevertheless, in SDR content, the final effect can still be considered quite decent and satisfactory for everyday viewing. Much more serious errors arise in HDR materials. The Color Checker analysis showed significant deviations, and poor brightness management, combined with limited colour gamut coverage, further exposes the shortcomings of the picture in this mode. All of this makes HDR on the Bravia 3 look unconvincing and can ruin the impression left by the otherwise quite decent SDR content settings. Fortunately, it’s not a hopeless situation. Various errors can be somewhat mitigated, and some can even be completely corrected through professional calibration. That's why we decided to check how the TV would perform after such adjustments.

As we mentioned earlier, LG televisions are equipped with advanced tools for carrying out the calibration process. We used them to model the picture in line with what the director envisioned. And without modesty, we must admit that we achieved this phenomenally. Both SDR and HDR materials present a level that clearly indicates this is how a film should look. It's worth taking a look at the colour errors on the "ColorChecker" palette, where practically none of them exceed "1", except for two samples.

Calibration allowed us to extract significantly more from ChooseTV 3 than we could have expected at the beginning. First and foremost, it managed to address the deficiency of blue, which previously caused a noticeable warming of the image. After a slight adjustment in white balance, most errors in the Color Checker measurements for SDR content practically disappeared. The whites took on a natural tone, and brightness management in gamma stabilised to an almost ideal level, not exceeding the threshold of what the human eye can perceive. So it is safe to say that in SDR content, after a few adjustments in the settings, ChooseTV 3 performs really well. It fares much worse, although still definitely better than before calibration, when it comes to HDR content. The white balance has been brought in line, but the limitations of the IPS panel are insurmountable. The lack of local dimming means that even the smallest elements can be overexposed, which is immediately noticeable. Colour-wise, the effect has also improved, although it is far from perfect – many errors still exceed the threshold of four, and even five delta E units, remaining visible to the human eye. It was already clear earlier that ChooseTV 3 is not a television designed to impress with HDR quality. Nevertheless, it is pleasing that in SDR content, after calibration, the picture can look really great and in this category, the television pleasantly surprised us.

Once again, we will take a look at the feature responsible for gentle gradation, but we will also address the one that aims to enhance the quality of lower-quality materials. The default smoothing of tonal transitions, as we could see, was not the worst, but it can be improved further. The function has a slider that allows us to adjust its intensity. We recommend using the former, as it produces very good results and does not blur important details.

Image scaling on LG C4 is quite good, however, it cannot be said to be without flaws. The image is slightly sharper by default, although not in a very noticeable way. While jagged edges of trees can be seen, it is not a major issue when compared to other manufacturers.

Bravia 3 brings something more to the Sony television family than just a shared name. It stands out primarily for its ability to enhance the quality of weaker materials thanks to the processor used. Of course, we won’t find the advanced XR chip known from more expensive models here, but nonetheless, it must be said that the image in lower resolution looked surprisingly good. The scaling worked effectively, and most areas of the screen were free from the typical excessive edge roughness found in budget constructions.

Also worthy of attention is the function that improves the smoothness of tonal transitions. In high setting, it works really well, effectively masking gradation imperfections without significant loss of detail. It does happen that the algorithm overzealously smooths elements that should remain sharp – for example, faces – however, in the overall assessment, the effect is beneficial. The best results were achieved precisely at the highest setting, and this is the option we could recommend to those watching lower-quality content.

The maximum refresh rate we can set on the LG G4 is 144 Hz. Naturally, this is only possible when connecting the TV to a very powerful PC. Otherwise, we will operate at a maximum refresh rate of 120 Hz, which is recommended if we primarily want to watch sports or content with a lot of motion dynamics. For those who require high fluidity of the image, the manufacturer has implemented a multi-level motion smoother called "TrueMotion". It has been divided into two separate sliders that adjust the sharpness of moving images (De-Blur) and judder (De-Judder). Both sliders can be set in the range of 0 to 10, with each degree affecting the level of smoothing, allowing everyone to find their sweet spot.

The panel of the LG OLED C4 features an average response time of less than 1 ms (which directly results from our measurements), enabling the achievement of an extremely clear image, unattainable for LCD TVs, which can have response times of up to several milliseconds. This is clearly evident in the images from the "UFO Test," which show no trailing blur behind the object.

Motion smoothness has never been a strong point of televisions equipped with 60 Hz panels, and the Bravia 3 is no exception. Nevertheless, Sony has included something that may appeal to those more sensitive to the way images are displayed. I'm talking about the proprietary motion smoother, Motion Flow, which gives the user plenty of adjustment options. With it, one can make the image smoother, almost theatrical, or stick to a more cinematic style with characteristic judder that many people simply associate with a filmic atmosphere. These functions work with content at lower frame rates, such as films and series recorded at 24 or 30 frames per second, which is the material we deal with on a daily basis. This is precisely where the motion smoother proves to be one of the most important features in everyday TV usage, and here, the Bravia 3 performs really decently.

We can now say that LG C4, like practically every OLED television from the manufacturer, is exceptionally good in terms of cooperation with consoles and PCs. Thanks to the implementation of four full-bandwidth HDMI 2.1 ports at 48 Gbps, the manufacturer has embedded all the features that enhance gaming comfort, including simultaneous support for FreeSync and G-Sync technologies. With such a tandem, players with graphics cards from AMD or nVidia can safely choose C4. However, what should please gamers demanding the highest possible quality the most is the simultaneous implementation of HDR Dolby Vision and HGIG mode. The former is particularly important as it operates with extremely low input lag in all settings.

A standard feature in televisions from the Korean manufacturer is also the implementation of GameBar, allowing for quick adjustments of settings "on the fly," without the need to exit the game. It also allows for image adjustments for people with visual impairments, which is an incredibly nice touch. Another important piece of information is that when VRR technology is enabled, we won’t experience a drop in contrast. This is, of course, due to the design of the panel and the absence of conventional backlighting. It is, however, normal for shades of grey to flicker slightly, although this is a characteristic feature of this function regardless of the manufacturer and television.

In summary: LG C4, just like all the manufacturer's OLEDs equipped with high-refresh-rate panels and HDMI 2.1 connections, creates a harmonious whole with consoles. In practice, it is a complete television, and if we expect the highest possible efficiency in gaming, C4 will be an ideal choice.

Bravia 3 is not gear for e-sports enthusiasts or fans of late-night marathons with a controller in hand. The lack of 120 Hz refresh rate and HDMI 2.1 ports shuts down the conversation before it even gets started. This is a TV for casual gamers who, after work, will fire up FIFA or racing games, not for someone who measures every frame in a spreadsheet. Nonetheless, Sony has thrown in a few nice additions so it’s not completely sparse. ALLM works as it should, automatically switching the TV to game mode (low latency). We even find a simple Game Bar here, which is clear and intuitive. However, the biggest curiosity here is the PlayStation Portal app. Thanks to this, you can launch PS5 games wirelessly and see them right on the TV screen. It sounds great, but it only takes a few minutes to feel significant lag. In our opinion, it's more of a showcase of capabilities than something that can be used day-to-day. If someone really wants to game, it's better to plug the console in with an HDMI cable and forget about wireless issues.