LG OLED G4 vs Sony BRAVIA 5 (XR5)

LG G4 guarantees an incredibly vibrant HDR effect, placing the television firmly at the top of the rankings. The highest model in the manufacturer's 2024 portfolio, equipped with the second generation of microlens technology (MLA), has achieved a maximum brightness level of 1474 nits in real scenes. The only area where the product of the Korean manufacturer may fall short compared to LCD televisions with Mini LED backlighting is during a full-screen scene featuring a lot of white. If we were to disregard the latter scene, the average result would be even higher. It's also worth mentioning scenes with very fine details, where each one shone at full intensity, which is not as evident in non-OLED televisions. The combination of such brightness and wide coverage of the DCI-P3 color space ensures that HDR materials are more engaging than ever before.

Looking at similar results in terms of black levels and contrast, we expected the same stable performance as last year's model when it comes to HDR content. Unfortunately – and this must be said plainly – there has been a regression here that is hard to miss. The paradox is that the peak brightness of the Bravia 5 can be impressive: in our synthetic tests, the TV reached around 1000 nits in HDR. Sounds great, right? The problem is that this power doesn't always have a real impact on all movie scenes. When small, pinpoint elements appear on the screen, something that in Sony's case was usually fine-tuned with surgical precision, this time it clearly falters. The algorithms try to maintain deep blacks around small objects, but the side effect is that details can be dimmed to the point of becoming barely visible. One only needs to bring up the example of the movie Sicario 2 – there, in some scenes, small light sources practically vanished as if someone had covered them with dark film.

Of course, not everything looks so dramatic. In simpler, brighter scenes, where the image is filled with more light, the Bravia 5 shows that it can shine: literally and figuratively. At those times, the TV achieves values in the range of 600–800 nits, which we saw both in synthetic tests and during movie screenings. The impression is really positive; the brightness adds dynamism, and the colours look vibrant and fresh. However, there remains a certain dissonance. We feel a slight confusion because it is evident that something has gone in the wrong direction. Technological progress – more zones, more backlight power – has not been supported by the kind of refined image management that we usually associate with Sony. Fortunately, there are elements that have not been compromised and are actually at a very high level. We are talking about colour reproduction. Thanks to the use of the PFS filter, the colour palette coverage is excellent – about 97% DCI-P3 and 75% BT.2020. These values allow for a truly wide colour reproduction, giving films a natural and cinematic character.

The best factory mode in terms of colour reproduction was "Filmmaker". This is the one we used during our tests. Let's check how its characteristics looked before the calibration process. Taking a closer look at the white balance first, we can notice a significant dominance of red and green colour. As a result, the image had a warm yellow tint. This is the kind of characteristic we usually observe in "Cinema", "Filmmaker", or similarly named modes. The effect of such a colour balance was clearly visible in both SDR and HDR content, which, after switching from "Standard" mode, was distinctly yellowed. Now let's move on to two graphs that are responsible for brightness characteristics, and consequently, image contrast. The first one (Gamma), representing materials with a standard colour palette, performed decently. For most of the time, the midtones and bright whites were represented very accurately, however, it noticeably lost the darkest details which blended into a black patch. On the other hand, HDR materials, represented by the EOTF curve graph, exhibited a significant drop in contrast due to a strong boost in brightness. There was also an issue with the colours themselves as seen on the "ColorChecker" graph since they were noticeably undersaturated.

Sony Bravia 5 was obviously tested in the best possible mode, which is the Movie mode. Right out of the box, it delivers the most natural colours, definitely better than anything offered by the "eco" or "dynamic" modes, which are more suited for a store display than a living room. However, the Movie mode alone does not guarantee that we can always expect cinematic picture quality. In SDR content, we had no significant complaints – the slightly warmed white balance gave the scenes a golden hue, but it was nothing that was glaring. However, a problem arose with HDR materials. Here, the colour reproduction simply looked bad. The white balance was heavily skewed – with an excess of blue and a clear lack of red. At times, it resembled the store mode of "super vivid picture," where everything is blown out and artificially boosted.

This situation made brightness management seem too aggressive as well. The EOTF graph clearly showed that the television has trouble with overexposing many scenes right out of the box. And while we know what Sony televisions are usually capable of, it was hard to remain indifferent here – that’s why we quickly decided to go for calibration.

The manufacturer has been implementing extensive support for the calibration process in their LG televisions for many years. Therefore, we used 2- and 20-point grey scale adjustments along with an advanced CMS (Color Management System) and got to work. As you can see, thanks to the procedure carried out, each of the parameters has significantly improved. The use of tools has resulted in extremely beneficial effects, which include: studio colour reproduction, recovery of details in dark areas of the image, appropriate brightness characteristics, and proper colour saturation. Thus, we have maximised our approach to the reference image, or the one that the film director saw on the preview monitor. It is worth noting that the LG G4 televisions are the only ones that allow for even deeper intervention in image quality due to the capability to calibrate with 3D LUT matrices. However, this solution is recommended only for post-production or graphic studios.

After calibration, the situation changed dramatically. We managed to tune the white balance so that entire scenes began to look more natural, and the image gained coherence and elegance. In HDR, we finally got rid of that unwanted clipping effect that had previously spoiled some shots. Suddenly, it turned out that the Bravia 5 can extract much more from films than the first contact "straight out of the box" suggested. Indeed, if we look at the graphs and compare them with the standards, we can see that the beginning of the EOTF curve slightly strays beyond the reference line. However, this is not so much a calibration error as it is a natural limitation of the Mini-LED technology that cannot be bypassed. Sony, rather than clinging tightly to perfect black, prefers to prioritise the visibility of details – and in practice, it’s hard to disagree with that. We prefer to see the texture of the material on the screen rather than a pitch-black spot where all nuances disappear.

The calibration itself was really beneficial. After about an hour spent on settings, we felt that the image resembled that of the best cinema halls – of course on a home scale, but with the same sense of quality and refinement. And in such moments, we remember why we love Sony televisions: because once we fine-tune them, they reward us with a picture that captivates for long hours.

The tested television did not perform well with content rich in tonal transitions, resulting in a strong posterisation effect. However, there is a partial remedy for this ailment. The manufacturer has equipped the LG G4 with a smoothing system called "Gentle Gradation," which we can apply at three levels: Low, Medium, and High. Each of these options guarantees quite high smoothing effectiveness on bright colours, though low on darker ones. We recommend primarily using the first one due to the fact that the other two interfere with directorial intentions, removing film grain.

When watching lower-quality content, the efficiency of the television during upscaling is extremely important. The image from the tested television is sharp and clear. However, attention should be paid to the jagged edges of fine details and minor issues around characters, such as the creation of a halo effect, which occurs due to the sharpening imposed by the LG G4 even when the slider is set to the lowest value, which is 0. It is worth noting that this is a change in relation to the LG G3, which did not impose such strong image sharpening, even when the appropriate slider was set to position 0.

Bravia 5 carries the genes of Sony, which remain intact – and thank goodness for that, because we're talking about absolutely exceptional digital image processing. It's no coincidence that for years, it's been considered that TVs from this brand set the standard for how a screen should handle lower quality materials. If someone still watches classic television, old films, or YouTube in lower resolutions, here they get equipment that can turn such content into a surprisingly enjoyable experience. On board, we find several tools worth activating. The first of these is "digital noise reduction." Set to a medium level, it works superbly – smoothing out tonal transitions that usually cause the most trouble in low-quality materials while introducing no artificial artifacts. Importantly, it also doesn't remove the cinematic character, which is the natural grain that is intentionally present in many productions. Another advantage of the Bravia 5 is the upscaling capabilities of the XR processor. The image presented after scaling is soft, yet sharp and clear. The outlines of characters are well-defined, and backgrounds maintain their texture without excessive artificial sharpening. It's hard to find a better TV for watching lower quality materials – Bravia 5 only confirms why Sony is considered the benchmark in this area.

The maximum refresh rate that we can set on the LG G4 is 144 Hz. Naturally, this is only possible by connecting the LG G4 to a very powerful PC. Otherwise, we will be operating at a maximum refresh rate of 120 Hz, which is recommended if we primarily want to watch sports or content with high motion dynamics. For those who require high fluidity of 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 from 0 to 10, with each increment affecting the degree of smoothing, so everyone can find their sweet spot.

The LG OLED G4 panel features an average response time of 0.78 ms (which directly results from our measurements), allowing for an incredibly clear image, unattainable by LCD televisions, which have response times of even several milliseconds. This is clearly visible in the "UFO Test" images, showing the absence of any trailing blur behind the object. Furthermore, the LG OLED G4 test showed that the television offers the ability to precisely adjust motion smoothing functionality, allowing users to choose the ideal level of image interpolation. We particularly appreciated this during fast-paced action in video games, where the LG G4 performed exceptionally well, minimising any blurriness. Thanks to OLED technology, this model eliminates so-called ghosting, ensuring that the image remains sharp even in the most dynamic sports or movie scenes.

Bravia 5 has a 120 Hz panel, which in itself sounds like an invitation to watch sports, fast matches or spectacular action films. However, the real magic begins when MotionFlow – Sony's proprietary motion smoother – comes into play. Thanks to this feature, we can adjust the character of the picture to our own preferences. The "smoothness" slider allows us to transition from a cinematic feel with a slight "judder" to a theatrical fluidity, where every ball in the match glides across the screen as if on a string. The higher the value, the smoother and more fluid it is; the lower it is, the more film-like and natural it becomes. In the options, we also find an additional setting that Sony calls "clarity". This is nothing more than the BFI function (which inserts black frames) aimed at improving motion sharpness. It sounds great in theory, but in practice, it must be used with caution. Why? Because all higher settings cause brightness drops of up to half, and in some cases, contour doubling also appears. So if we want to use it, we recommend setting it to the lowest level – "1" out of the available ten. That way, we gain a bit better motion sharpness without risking losing half the brightness of the picture.

The LG G4 television supports all features that make up the HDMI 2.1 standard. During testing, each feature activated without any issues, which allows us to consider the television as designed for gaming. Its performance will certainly be appreciated by both console users and those connecting the LG G4 to a computer. It’s also worth mentioning the proper implementation of the HGIG (HDR Gaming Interest Group) mode, which ensures that games mastered to brightness levels beyond the maximum luminance of the LG G4 will correctly map tones, keeping the game image true to the original.

A nice touch is the presence of a special GameBar that we can bring up at any moment to check game parameters, but most importantly, to change them quickly. More importantly, turning on VRR technology does not degrade contrast, which is often a problem in televisions with local dimming or Mini LED backlighting. Of course, this is thanks to the OLED panel itself, characterised by pixel self-emissiveness. As a journalistic note, we will only mention a slight grey flicker, which, however, is somewhat normal when VRR is enabled.

In summary, the LG G4, like practically all OLED televisions, is an ideal product for all kinds of gaming and online competitions. With full HDMI 2.1 ports with a complete bandwidth of 48 Gbit, features such as VRR, ALLM, G-Sync, FreeSync, or HDR Dolby Vision gameplay will bring a lot of joy.

In the Bravia 5, there is a significant improvement compared to the X90L model from two years ago. The television offers literally everything its predecessor had, but this time the issues that could frustrate gamers have been addressed. Problems with setting the variable refresh rate (VRR) have disappeared, and there are no longer issues with configuring HDR content in HGiG mode. In short: we get a device that simply works as it should, without any hassles. So, the Bravia 5 has everything you can expect from a modern gaming TV – and it can be confidently advertised with the slogan "ready for PS5." That's something we couldn't say about the X90L model. Well done, Sony!

It's just a shame that this relatively high-priced model lacks a full set of four HDMI 2.1 ports. In everyday use, this won’t be an issue for most people, but if someone has a console, soundbar, and additional equipment connected via HDMI, at some point they'll have to choose or juggle cables.