Philips OLED770 vs LG OLED C6 (WOLED)

The Philips OLED770 does not attempt to compete with the brightest OLEDs on the market, and it would be difficult to expect that, as it is the entry-level model in Philips' range for 2025. In our measurements, it reached a maximum of around 700 nits, which allows enjoyment of HDR effects in scenes where light appears sporadically – for example, in the flash of headlights or a starry sky. In such moments, the image can truly be stunning. However, it is different when there are more bright elements on the screen. The television, like many cheaper OLEDs, limits luminance in those situations, causing the entire image to noticeably dim. This was best observed in a scene from the film The Meg, where the sun comes out behind an oil rig – the brightness then dropped to around 250 nits, which is almost three times less. The HDR effect remains pleasant to the eye, but it is worth being aware that this model performs best in scenes with less intense light. Fortunately, the OLED770 has a trump card – the coverage of the DCI-P3 colour gamut is as high as 99%, so colours in films and games are vivid and very close to what the creator intended to convey.

The HDR performance of the LG C6 is really very good. LG Display's new WOLED panel has primarily brought a considerable increase in brightness. In our unit we measured around 1,500 nits and, importantly, the TV can deliver similar values in many typical film scenes. That gives the HDR the necessary impact. Bright highlights, lamps and sunlight can be really intense, and most HDR films simply look very impressive. Of course it's still an OLED, so brightness falls in scenes with a lot of white. This is well illustrated by the fifth scene in the film The Meg, where the C6 reached around 600 to 700 nits. That's still a very good result, but it also shows that the new panel hasn't shed all the limitations typical of OLEDs.

Colours

When it comes to colours, there is also little to complain about. The C6 covers about 99% of the DCI-P3 gamut and roughly 75% of BT.2020. In practice the colours are very saturated and, importantly, stable across different scenes. This is worth emphasising, because not every TV behaves the same in this respect. In some RGB Mini LED models colour saturation can depend more strongly on image brightness. A wider colour palette is nowadays offered mainly by QD-OLED TVs and new SQD models with a new generation of quantum dots. However, the C6 still performs very strongly here and is able to produce suitably saturated colours in most film scenes.

The first measurements already show that the factory settings of the Philips OLED770 have quite a lot to improve even in Filmmaker mode. The white balance chart clearly shows a lack of blue, resulting in a slightly yellowish tint to the image. In practice, the white is not snowy but leans towards warmer tones – which some may even appreciate, but from the perspective of accuracy, this is a deviation from the norm. The gamma, on the other hand, tends to the darker side – the average value is around 2.6 instead of the reference 2.4. In the midtones, the image appears subdued and more saturated, which may seem too "filmic," but detracts somewhat from naturalness. However, the most issues are evident in colour reproduction. The average error is relatively high, and some colours – particularly shades of grey – deviate significantly from what one should see. In everyday viewing, this means that sometimes colours may look less natural than we would like.

Right out of the box the LG C6 is pretty well set up, especially if you choose Filmmaker mode. In SDR material the white balance is decent, although as brightness increases it starts to lack a bit of red. The picture becomes a little cooler as a result, but it’s not such a big difference that it stands out during normal viewing. More happens in the brightness response itself. Gamma is a bit low and instead of holding at 2.4 it sits closer to 2.1–2.2 over much of the range. In practice the C6 slightly brightens midtones. Shadows are therefore more readable, but the image loses some depth compared with how it should look in a dark room. In HDR the situation is a bit more interesting. The start of the grayscale looks very good, but from about 20–30% brightness the white balance starts to drift more and more. As brightness rises there’s more red and a noticeable lack of blue. In the brightest highlights the difference is already significant and also affects reproduction of some colors. The EOTF curve itself is handled fairly well over most of the range. The C6 only has a tendency to slightly brighten the image, which we also saw during our film comparisons. The largest deviation appears around the brightest highlights, where the TV begins to adapt the signal to the panel’s capabilities. So the out-of-the-box Filmmaker mode in HDR isn’t perfect, but overall it performs well. The biggest room for improvement is the white balance, especially at high brightness.

The Philips OLED770 from the outset signalled that it harboured significant potential, but in its factory settings, it was difficult to see this fully. The picture was often too warm, and some colours appeared to have lost their naturalness along the way. Calibration, however, revealed that it is a very responsive television – it reacted to every adjustment and almost immediately unveiled another layer of its capabilities. The white balance could be set in both SDR and HDR to eliminate the yellowish tint and introduce a neutral, clear white. The gamma stabilised closer to perfection, allowing midtones to regain their naturalness, and shadows stopped being artificially darkened, perhaps even with a slight brightening effect. The result was obvious... Films were watched with greater ease; the picture had cinematic depth, but without the feeling that something was exaggeratedly darkened. However, the most interesting aspect was the work on colours. Factory errors were not dramatic but slightly noticeable – skin tones were sometimes too warm, and grey didn’t always have the shade we expected. After calibration, the error values dropped to around 2, and in many cases even below 1. This is certainly a level lower than the threshold of human perception. In other words, after correction, the colours finally "clicked" into place. Looking at the screen, we had the impression that the television had begun to speak with its full voice. Like an instrument that has finally been well tuned.

LG TVs have been very receptive to calibration for years and the C6 is no exception. After adjustment the white balance was set almost perfectly, and most colour errors dropped to values below 3, often even around 2. In practice this means very accurate colour reproduction, both in SDR and HDR. An interesting quirk only appeared with the luminance response in HDR. On a standard EOTF chart everything looks almost ideal and at first glance it would be hard to criticise. Only when we measured the TV's behaviour with filters based on actual film scenes did it become clear that the C6 has a slight tendency to artificially boost image brightness.

This is not a huge difference and many people may even view it positively, because HDR consequently looks a little more striking. From the perspective of fidelity to the source material this is not ideal, however, as some scenes are simply a touch brighter than the filmmaker intended. Interestingly, this is rather unusual for LG. In previous generations the brand's TVs typically stuck very closely to the reference picture characteristic after calibration. With the C6 we are still very close to the standard, but this subtle brightness boost is indeed noticeable in films and TV series.

The issue of the aforementioned colour banding can largely be mitigated thanks to the 'distortion reduction' feature, which is an algorithm for smoothing tonal transitions in Philips. It performs best at a low setting – effectively eliminating unwanted colour bands while not introducing strange artefacts or losing image detail. This is one of those features that is truly worth leaving switched on.

The situation is somewhat worse regarding upscaling. The image from a lower resolution can be too soft, while in some areas, characteristic 'jaggies' appear. The impression is that the algorithm is trying to reconcile two conflicting directions – smoothing and sharpening – and ultimately fails to find a happy medium. As a consolation, it can be added that the television has no issues with overscan, meaning it does not cut off the edges of the image, which sometimes occurs in other competing models.

Here the LG C6 has taken a real step forward. The TV uses the same processor found in the flagship G6, and in terms of image processing the two models are very similar. That's a considerable plus, because in this area LG's processor this year performs excellently. The "Smooth Gradation" function in particular works very well. With heavily compressed material it can effectively hide ugly banding and artefacts that often appear, for example, in lower-quality streaming. It's best to leave it set to "Low". That way the improvement is clear and the TV does not yet start blurring fine details. Higher settings smooth the image more aggressively but can already remove some of the natural texture of objects on the screen. Upscaling itself also performs very well. Lower-resolution content is sharpened correctly, edges look clean, and the processor quite effectively reconstructs fine details. In this respect the C6 is already very close to LG's best TVs and the differences compared with the G6 are small.

The issue of the matrix in the Philips OLED770 is not entirely straightforward. The manufacturer claims a 120 Hz panel, but our measurements showed that the screen can accept a 4K signal even at 144 Hz. That sounds like great news – after all, who wouldn't want an additional mode for PC gamers at this price? However, the reality turned out to be more complex. With 120 Hz content, the television behaves like most OLEDs – the image is absolutely clear, with no trace of ghosting or blurring, making it perfect for both dynamic games and sports broadcasts. The problem only arises at 144 Hz. Unlike models with official support for this frequency, here you can observe the phenomenon known as frame skipping. This means that the television cannot display all the frames – some are skipped, causing motion to lose smoothness, and double contours appear on the screen. The effect resembles the operation of the BFI function, which Philips does not offer in this model anyway.

LG C6 received a panel with a maximum refresh rate of 165 Hz, which is great news above all for gamers using a powerful PC. In films, sport or on consoles we will of course make use of up to 120 Hz, but even then it is hard to fault the motion clarity. As befits an OLED, the panel's response time is almost instantaneous. Moving objects therefore do not leave the characteristic smearing or trails that we can still see on LCD televisions. This is especially noticeable in sport and fast-paced games, where the picture remains very clean even during dynamic movement.

For films and television LG has also prepared the TruMotion motion smoothing system. In the user settings you will find two separate sliders. De-Judder primarily addresses low frame-rate content, that is mainly films and TV series at 24 fps. You can use it to slightly reduce the characteristic judder or set a higher value if you want a very smooth image. De-Blur is useful for higher frame-rate material, chiefly sports broadcasts and 50/60 fps television.

If someone is looking for a television for gaming, the Philips OLED770 is a contender that is hard to ignore. The mere fact that we have an OLED here provides an excellent starting point – perfect black and infinite contrast make evening sessions in atmospheric games look as if they were lifted straight from the cinema. On top of that, there is the Ambilight system, which consists of LEDs on the back of the television that extend the image onto the wall behind the screen. The effect is such that even playing FIFA can look like a small spectacle, and in horror games the atmosphere becomes truly thick. From a technical standpoint, it's also quite decent. The Philips OLED770 supports variable refresh rate (VRR) up to 120 Hz, has an automatic mode for gamers (ALLM), and if someone is using an Xbox Series X, they can also count on Dolby Vision support in games. One must only know that in this mode the input lag is slightly higher than standard, though still at an acceptable level. As a bonus, we get the “Game Bar” panel, which is a special tool bar for gamers. It isn’t the most conveniently designed solution, but it allows you to check key parameters without leaving the game. Overall, this results in a television that, on one hand, has all the essential gaming features, and on the other, can add something unique – Ambilight. And it is this mix of technology and visual effect that makes the OLED770 one of the better screens for gaming at home.

LG has long focused heavily on gamers, and the C6 really lacks nothing important. The TV supports 4K at 120 Hz from consoles, and when connected to a PC it can run at up to 165 Hz. There is also VRR from 40 to 165 Hz, ALLM and a properly working HGiG. A big plus is support for Dolby Vision in games, so the Xbox Series X can use that format without giving up Game Mode. It's rounded off by a Game Bar, from which you can quickly check key signal parameters and change settings without leaving the game. In terms of features, the C6 is therefore one of those TVs that is really hard to fault. Whether you're gaming on a PlayStation, an Xbox or a PC, practically everything you could expect from a modern gaming TV is available here.