LG OLED G4 vs Philips OLED909

LG G4 guarantees an incredibly vivid HDR effect, placing the television among the very best. The equipment of the highest model in the producer's 2024 portfolio with the second generation of micro-lens technology (MLA) has achieved a maximum brightness level of 1474 nits in real scenes. The only area where the product from the Korean manufacturer may lag behind LCD televisions with Mini LED backlighting is during the full-screen scenes featuring a lot of white. If we disregard the latter type of scene, the average result would be even higher. It is also worth mentioning scenes with very fine details, where each one shines at full intensity, which is not as evident in non-OLED televisions. The combination of such brightness and wide coverage of the DCI-P3 palette makes HDR materials more engaging than ever before.

Philips OLED909 impresses with its HDR quality, achieving up to 1500 nits of peak brightness in tested scenes. This is an excellent result, placing this television among the best OLED models on the market. The MLA panel, also used in models such as the Panasonic Z95A and LG G4, plays a key role here, allowing for exceptionally bright and detailed reproduction of dynamic scenes. However, it is worth noting that in the most demanding scene from the film The Meg, brightness drops to around 700 nits. This is a typical phenomenon in OLED technology, where intensely bright full-screen images cause a limitation in luminance. Nevertheless, the HDR effect still looks very good, and the television performs better than most of the competition under similar conditions. The wide colour gamut coverage also deserves praise. The OLED909 offers 95% coverage of DCI-P3, ensuring that the television can display vibrant and realistic colours.

The best factory mode in terms of colour reproduction was "Filmmaker". This was the one we used during our tests. Let's check how its characteristics looked before the calibration process. Looking closely at the white balance first, we can notice a significant dominance of red and green. As a result, the image had a warm yellowish hue. Such characteristics are typically observed in "Cinema", "Filmmaker" or similarly named modes. The effect of this colour balance was clearly visible in both SDR and HDR content, which after switching from "Standard" mode appeared distinctly yellow. Now, let's move on to two graphs that are responsible for the brightness characteristics and consequently the contrast of the image. The first one (Gamma), representing materials with a standard colour palette, performed decently. For most of the time, midtones and bright whites were reproduced very accurately; however, it noticeably lost the darkest details, which merged into a black blob. Conversely, HDR materials, represented by the EOTF curve graph, exhibited a significant drop in contrast due to a strong boost in brightness. The colours themselves also posed a problem, as can be seen on the "ColorChecker" graph, since they were noticeably under-saturated.

Just like with other televisions, the Philips OLED909 has been tested for colour reproduction in factory modes. The best mode turned out to be Filmmaker Mode, however, despite its name, it is not without flaws.

The biggest problem is the white balance. In both HD and 4K HDR content, there is a noticeable dominance of green and red hues, which causes a distinct yellowing of the screen. This effect is particularly evident in test materials, for instance in a scene with Tom Cruise in the foreground, where the difference compared to a calibrated image is very apparent.

As for brightness characteristics, in HD material the gamma was overly boosted – it was below the reference value of 2.4, which gave the image a “milky” filter and affected overall clarity. In the case of 4K HDR content, we noticed the opposite phenomenon – at the beginning of the EOTF curve, there is a noticeable drop, indicating problems with reproducing the smallest details in dark scenes. Although Filmmaker Mode offers acceptable quality, noticeable errors in white balance and brightness characteristics show that the television requires additional calibration to fully demonstrate its potential in colour reproduction.

The manufacturer has implemented extensive support for the calibration process in its LG televisions for many years. We therefore used 2- and 20-point greyscale adjustments, as well as an advanced CMS (Colour Management System), and got to work. As you can see, thanks to the procedure carried out, each parameter has significantly improved. The use of tools allowed for the achievement of extremely beneficial effects, which include: studio colour reproduction, recovery of details in dark areas of the image, appropriate brightness characteristics, and suitable colour saturation. This brings us as close as possible to the reference image, which is what the film director saw on the preview monitor. It is worth noting that the LG G4 televisions alone allow for even deeper intervention in image quality thanks to the ability to calibrate with 3D LUTs. However, this is a solution recommended only for post-production or graphic studios.

Philips OLED909 offers tools for image calibration, which significantly improves its quality. After calibrating the Filmmaker Mode, the television presents a much more natural colour representation. The white balance after calibration looks very good. Although we noticed slight deviations in the blue tint in HD content, the errors are within acceptable limits, and the image gives a much better impression than in the factory settings. The brightness characteristics, including gamma and EOTF, have also been clearly improved. The television no longer has issues with excessive brightening or darkening of the image. Both dark and bright details are now rendered correctly, making the image look very good in every scene. After calibration, the Filmmaker Mode in the Philips OLED909 offers excellent image quality that will meet the expectations of even the more demanding users. Calibration fully utilises the potential of this model.

The tested television did not perform particularly well with materials rich in tonal transitions, as a result of which we could observe a strong posterisation effect. However, there is a partial remedy for this issue. 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 a high effectiveness of smoothing on light colours, although it is low on darker ones. We recommend primarily using the first one, as the other two interfere with the director's intentions by removing film grain.

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

The Philips OLED909 offers a distortion reduction feature aimed at smoothing tonal transitions. Unfortunately, the effectiveness of this function leaves much to be desired. Setting it to the "Medium" level brings certain effects, but it comes with the risk of blurring important details in the image. For this reason, we do not recommend using this option unless we are keen on mitigating visible artifacts at the cost of detail.

As for image scaling, the television presents a very plastic image, which may appeal to viewers who prefer a softer picture. Those expecting clearer sharpness will also find a solution, as image scaling can be adjusted according to individual preferences in the settings.

The maximum refresh rate that we can set on the LG G4 is 144 Hz. Naturally, this is only possible when the LG G4 is connected 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 high motion dynamics. For those requiring high image fluidity, the manufacturer has implemented a multi-level motion smoother called "TrueMotion". This 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 level affecting the degree of smoothness, allowing everyone to find their golden mean.

The LG OLED G4 panel features an average response time of 0.78 ms (as directly derived from our measurements), enabling an incredibly clear image, unattainable by LCD televisions, which can have response times of several milliseconds. This is perfectly illustrated by the images from the "UFO Test", which show no trailing blur behind the object. Moreover, the LG OLED G4 test revealed that the television offers the ability to precisely adjust the motion smoothing function, allowing users to select the ideal level of image interpolation. We particularly appreciated this during fast-paced actions in video games, where the LG G4 performed exceptionally well, minimising any blurring. Thanks to OLED technology, this model eliminates so-called ghosting, ensuring that the image remains sharp even in the most dynamic sporting or cinematic scenes.

The Philips OLED909 with a 144 Hz panel offers excellent motion smoothness, which should satisfy both film enthusiasts and gamers. Additionally, the television is equipped with a motion smoothing feature called "Motion Style", which allows for precise adjustment of motion fluidity to personal preferences. In the settings, we find two sliders: "Smoothness", responsible for regulating motion fluidity in films, and "Blur Reduction", which helps eliminate minor artifacts and distortions in dynamic scenes. This feature works well, ensuring that even rapid movements on the screen are clear and readable.

The LG G4 television supports all the features that make up the HDMI 2.1 standard. During testing, each of them activated without the slightest problem, which allows us to consider the television as designed for gaming. Their functionality will surely be appreciated by both console users and those connecting the LG G4 to a computer. It is also worth mentioning the correct implementation of the HGIG (HDR Gaming Interest Group) mode, which ensures that games mastered to brightness levels exceeding the maximum luminance of the LG G4 will correctly map tones, and the game's visuals will remain true to the original.

A nice touch is the existence of a special GameBar, which we can call up at any moment to check game parameters, but most importantly, to change them quickly. More importantly, enabling VRR technology does not degrade contrast, which is very common in televisions that feature local dimming or Mini LED backlighting. Of course, this is thanks to the OLED panel itself, characterised by pixel self-emission. As a matter of editorial obligation, we will only mention a slight grey flicker, which is somewhat normal after enabling VRR.

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

The Philips OLED909 is a television that meets practically all the requirements of gamers. Equipped with ALLM (Auto Low Latency Mode), VRR (Variable Refresh Rate), and support for Dolby Vision, it guarantees an excellent gaming experience. Additionally, the television offers very low input lag, ensuring that reactions to player movements are instantaneous, which will be particularly appreciated by fans of fast-paced games.

The television handles any resolution at 120 Hz without any issues, and even supports higher refresh rates. The HGiG feature, responsible for accurately displaying HDR content in games, works as it should, making the image in game mode balanced and aligned with the guidelines of console manufacturers.

The OLED909 is also equipped with the Game Bar feature, which allows for quick preview and adjustment of game-related settings. Although the interface of this solution appears less visually appealing than that of competitors, it serves its purpose well, offering all the essential options in one place.