Compare: LG OLED C4 vs Samsung OLED S90D / S94D (WRGB OLED)

LG C4 is a television that, in its price range, will likely have no competition for many users. Thanks to its extensive capabilities, it will appeal to those looking for a television not only for films and series but also for gaming. The advanced WebOS system and a remote control that functions like a mouse will certainly be a significant convenience in everyday use, making it likely that we will stick with this brand for much longer. The OLED panel implemented by the manufacturer, resulting from over 10 years of history, shows that this brand has not yet said its last word. The brightness results in HDR materials are very solid and can deliver an incredibly dynamic and deep image. It is worth mentioning the excellently implemented dynamic tone mapping feature, which makes HDR10 content look almost as good as Dolby Vision. And when it comes to fidelity to artistic vision, one cannot overlook how calibratable LG televisions are, allowing considerable freedom for calibrators and classic calibration for home users, as well as 3D LUT for professionals. However, if we are looking for a gaming television, then the LG C4, like most of the manufacturer’s OLED televisions, will be an ideal choice. With the implementation of HDMI 2.1 ports and the full utilisation of their potential, we can enjoy incredibly smooth gameplay with all the benefits, such as VRR, ALLM, FreeSync, and G-Sync. Of course, the panel, with a maximum refresh rate of 144 Hz and an advanced motion smoother, will also provide a very smooth and sharp image during the broadcast of various sporting events. It is hard not to give a high rating to LG OLED C4, as a television in a similar price range with such advanced features is difficult to find among the competition.

The SAMSUNG S90D, also known as the S94D, is a device that has repeatedly pleasantly surprised us during our tests. It is worth mentioning that depending on the chosen size, the differences may concern the OLED panel used. However, regardless of which variant we encounter, one can count on excellent black levels and HDR effects, which, thanks to high brightness, make a huge impression. This is one of those TVs that really can elevate home viewing to a cinematic level. While testing films and series, we immediately noticed the great colour reproduction and depth of black. Dark scenes, which can be problematic on other screens, are full of detail and immersive here. Although the factory colour settings could be a bit better, after calibration the picture gained clarity, and the television showed what it is truly capable of. In terms of everyday use, we noticed that the wide viewing angles allow comfortable viewing even from less central positions. The Tizen operating system appealed to us – it is clear, fast, and offers access to the most popular applications. AirPlay works flawlessly, which was a nice addition during our tests. And what about picture fluidity?... The 144 Hz panel performs excellently. While watching sports, the image was smooth, with no hint of motion blur. Matches and races felt as if we were really in the stands. We also couldn't overlook the gaming tests. Low input lag and HDMI 2.1 support make the S90D/S94D an excellent choice for gamers. Games ran smoothly, and every movement was displayed with incredible precision. This is equipment that meets the expectations of even the more demanding console users. The SAMSUNG S90D/S94D is a television that combines excellent picture quality with modern features and versatility. Whether we are watching films, playing on a console, or simply using applications, this model impresses. In its price range, it is truly a strong contender.

LG OLED C4, as the name suggests, uses an organic panel of its own production. This series definitely ranks among the most recognisable on the market. Over 10 years of experience in the construction of self-emitting panels has allowed for the refinement of each subsequent design, with the models from the 2024 vintage being the epitome of this. Of course, the use of this type of screen enables the achievement of impeccable contrast and blacks, allowing for immersion in the world created by the director. This is made possible by the OLED panel, characterised by the absence of conventional backlighting, with current passing through organic pixels instead. This allows for super-accurate control of the image, thereby eliminating issues such as the dimming of delicate fine details or the halo/blooming effect. Looking at both of our test scenes, we can observe two things: perfect separation of lights and a whole plethora of details in the film "Sicario 2".

Samsung S90D, thanks to the OLED matrix used, offers infinite contrast, which is one of its greatest advantages. OLED matrices are characterised by the fact that each pixel emits its own light, allowing for deep blacks and excellent detail reproduction in dark scenes. Unlike traditional LCD matrices with backlighting, where black often takes on a grey hue due to uneven backlighting, OLED guarantees that switched-off pixels remain completely black. This allows for achieving a very high level of contrast, making the images more dynamic and realistic. In the scene from "Oblivion," the Samsung S90D brilliantly showcases the high light effect of the lantern, highlighting the intensity and details in the bright parts of the image. Conversely, in the film "Sicario 2," you can clearly see the separation of the helicopter lights from the dark background. A surprising aspect of the S90D model is that Samsung, after years of disputes, decided to use organic matrices manufactured by LG, in versions with "DAE" at the end of the name. Is that a bad thing? No! In terms of contrast, both WOLED and QD-OLED matrices offer the same, which is perfect black.

The results of HDR materials are definitely among the better ones. Practically every film significantly exceeds the 700 nits barrier, allowing for a very realistic image. Of course, none of them surpasses the magical thousand, yet the combination of such results and unlimited contrast and black effectively boosts the outcome optically. The last of the scenes, featuring a full-screen burst of sunlight, is actually less bright than the others, although it still represents a commendable level. It is also worth mentioning the excellent coverage of the DCI-P3 colour palette, which will allow for achieving extremely vivid colours.

In the tested film scenes, the television Samsung S90D achieves impressive brightness results, exceeding the 1000 nits barrier in the first four shots, which can be considered an outstanding result. In the case of the last shot, where a full-screen flash of sunlight is visible, the brightness drops to around 500 nits, but still remains at a very good level. Additionally, the television impresses with a DCI-P3 colour gamut coverage measurement of 98%, ensuring an extraordinarily rich and realistic colour reproduction, further enhancing the picture quality. This result makes the Samsung S90D an ideal choice for those expecting high-quality images in a variety of lighting conditions.

The best factory mode implemented in the tested television was "Filmmaker". It was this mode that we used during all tests. This mode proved to be quite good in terms of colour reproduction; however, other shortcomings effectively detracted from the enjoyment of viewing. Starting with the most basic aspect, the white balance, it was easy to notice that it was marked by a dominance of red, which overall changed the characteristics of the image. We could thus see a strong yellowing of the whites and a shift of all colours towards warmer shades. The gamma, which is a curve just as important, if not more so, was quite significantly lowered, resulting in a considerable drop in contrast, except at the beginning of the graph, where the television insidiously lost details. That’s all regarding SDR materials. Taking a closer look at films with a wide dynamic range, we can observe exactly the same phenomenon of yellowing of the white balance as in films with a standard colour palette. The EOTF curve, which replaces our gamma curve, is practically perfect and cannot be faulted.

The S90D television has been tested in Filmmaker mode, which offers good colour reproduction, although with some imperfections that may be noticeable to more discerning users. This mode may seem a bit too warm, and users who switched from Standard mode may experience a slight shock. It is worth noting that this situation is caused by poor settings, such as in the white balance, rather than the Filmmaker mode itself. In both SDR and HDR content, the device exhibits drops in blue colour, making colours warmer than they should be. In practice, this means that some shades, such as sky blue or skin tones, may appear less natural and more tinged with pink or yellow. The Colour Checker test confirms these deviations, showing shifts towards warmer tones. In SDR content, the gamma graph indicates slight fluctuations, resulting in a minimally darker image, especially in shadows. This can affect less defined details in darker scenes. Conversely, in 4K HDR materials, the EOTF curve is above the recommended line, leading to overly bright displays in certain parts of the image, which can cause clipping in the brightest areas. Overall, Samsung S90D presents a solid picture right out of the box, but for the best effects, especially with more demanding content, additional calibration is recommended.

As we mentioned earlier, LG televisions are equipped with advanced tools for carrying out the calibration process. We therefore used them to model the image in the way that the director intended. And without modesty, we must admit that we achieved this phenomenally. Both SDR and HDR materials present a level that clearly indicates that this is how a film should look. It is worth looking at the colour errors on the "ColorChecker" palette here, where practically none of them exceeds "1", apart from two samples.

After calibration, the Samsung S90D television in movie mode looks even better than one might have expected. The white balance, for both HD and 4K HDR content, has been improved almost to perfection. Although minor flaws can still be noticed, they are minimal enough not to significantly affect the picture quality. The colours are more balanced, which translates to a natural reproduction of details, especially in scenes requiring a precise colour palette. It is worth noting that this model in this size is equipped with a WOLED panel, which has less coverage of the wide colour gamut and does not offer as rich colours as, for example, the 65-inch version, which is equipped with a QD-OLED panel.

Contrast has also seen significant improvement. The gamma graph post-calibration is much closer to the expected line, providing better balance between bright and dark areas of the image. The EOTF curve, which prior to calibration showed issues with overexposed scenes, now presents better results. This effect allows for greater detail retention in bright parts of the image, especially in HDR materials.

The fluidity of tonal transitions in LG televisions has always been a fairly sensitive issue, as the manufacturer, despite impeccable performance in other areas, has almost always struggled to get this right. The results of the assessment of the fluidity of tonal transitions in the tested television were quite good, and the problems are mainly visible in darker scenes, such as the last two scenes. Interestingly, this is a result that is definitely better than the highest model from the manufacturer, namely the LG G4.

The fluidity of tonal transitions on the Samsung S90D television is at a good level, although subtle imperfections are noticeable in places. In most scenes, tonal transitions are smooth and well-reproduced, providing a natural image viewing experience. In more demanding sequences, such as dark coloured skies, slight issues can occur; however, they do not significantly affect the overall visual experience. In the test scene with dominant red hues, one can notice slight cutoffs in the brighter areas, but they are subtle enough not to hinder viewing. Overall, the fluidity of tonal transitions on the Samsung S90D television scores well, ensuring a good reception of content.

Once again, we will take a look at the function responsible for smooth gradation, but we will also address the one that aims to improve the quality of lower-quality materials. The default smoothing of tonal transitions, as we have seen, was not the worst, but it can still be improved. The function has a slider, which allows us to adjust its strength. We recommend using the first one, as it yields very good results and does not blur important details.

Image scaling in 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. Admittedly, there are jagged edges on the trees, but this is not a major issue compared to other manufacturers.

Television S90D performs very well at smoothing tonal transitions. Thanks to the applied technology, the transitions between colours are more fluid and natural. There is also the option to use noise reduction, which further smooths tonal transitions, which can be useful in certain situations. However, it is worth remembering that enabling noise reduction can also lead to the smoothing of desirable film grain, which in turn could reduce the cinematic atmosphere of the image. For this reason, caution is advised when using this feature, as it is better to leave the natural grain that adds character and authenticity to the viewed content.

Samsung, as always, does not disappoint and excels in the area of scaling images from lower resolutions. The S90D Samsung television effectively processes lower resolutions, as can be seen in the visible image. The outline of the model is clear and accurate and, as a result, looks natural and detailed. Moreover, the branches of the trees are well-rendered, showing no significant jaggedness, which could diminish the image quality. Thanks to effective scaling, even materials in lower resolution present attractively on the screen, pleasing users who prefer various sources of content such as regular antenna/cable television.

The maximum refresh rate that we can set on the LG G4 is 144 Hz. Naturally, this is only possible when connecting the television to a very powerful PC. In other cases, we will be operating at a maximum refresh rate of 120 Hz, which is recommended if we primarily want to watch sport or content with a lot of motion dynamics. For those requiring high fluidity of the image, the manufacturer has implemented a multi-step 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 within a range from 0 to 10, with each degree affecting the degree of smoothing, allowing everyone to find their golden mean.

The LG OLED C4 panel features an average response time of less than 1 ms (which directly results from our measurements), allowing for an incredibly clear image that is unattainable for LCD televisions, whose response times can be as high as several milliseconds. This is clearly visible in the pictures from the "UFO Test," showing no trailing blur behind the object.

Samsung S90D TV is equipped with a 120 Hz panel, with the possibility of "overclocking" to 144 Hz with the appropriate PC configuration, providing exceptional motion fluidity. Samsung has been offering a variety of sharpness settings on a ten-point scale for years, allowing users to adjust the display to their preferences. In the UFO test, thanks to the use of an OLED panel, there's no sign of any smearing. The pixel response is instantaneous and perfectly captures dynamic movements. In this aspect, OLED technology is considered one of the best on the market. The picture is extremely sharp and detailed, even during fast actions, making the S90D TV an ideal choice for gamers and sports enthusiasts.

We can already say that LG C4, like practically every OLED television from the manufacturer, is exceptionally good in terms of compatibility with consoles and PCs. Thanks to the implementation of four full bandwidth HDMI 2.1 ports at 48 Gbps, the manufacturer has included all features that enhance the gaming experience, among which we find simultaneous support for FreeSync and G-Sync technology. With such a tandem, gamers with a graphics card from AMD or Nvidia can confidently opt for C4. However, what should delight the players requiring the highest possible quality the most is the simultaneous implementation of HDR Dolby Vision and HGIG mode. The first is particularly important as it works with extremely low input lag in all settings.

A standard in the Korean manufacturer's televisions is also the implementation of GameBar, allowing for quick adjustments of settings "on the fly" without the need to exit the game. It also enables image adjustments for visually impaired individuals, which is a very nice touch. Another important piece of information is that when VRR technology is enabled, we will not experience a drop in contrast. This is, of course, due to the panel's design and the absence of conventional backlighting. However, it is 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 of the manufacturer's OLEDs equipped with high refresh rate panels and HDMI 2.1 ports, creates a harmonious whole with consoles. In practice, it is a complete television, and if we expect the highest possible performance in gaming, C4 will be an ideal choice.

The Samsung S90D TV is perfectly adapted to the needs of gamers, offering four HDMI 2.1 ports that support key features such as Auto Low Latency Mode (ALLM), Variable Refresh Rate (VRR), and HDR Gaming Interest Group (HGIG). With these technologies, gamers can enjoy smoother and more responsive gameplay, significantly affecting comfort and performance during intense gaming sessions. An additional advantage of the television is the special Game Bar, which allows for easy management of game settings. This functionality enables quick adjustments to parameters such as changing the TV's screen aspect ratio, which can be useful in various games and types of gameplay. Users can easily customise their preferences, making the use of the TV during gaming even more convenient and enjoyable. As for PC users, the TV pleasantly surprises. When connected to a computer, the panel is capable of achieving a refresh rate of 144Hz, and users of Nvidia or AMD graphics cards can enjoy features such as G-Sync and FreeSync. It should be noted, however, that the TV does not support Dolby Vision, which may be a drawback - but it's worth bearing in mind that Dolby Vision is not as popular for games as it is for films. Nevertheless, the S90D TV still offers excellent features for gamers, making it a great choice for gaming enthusiasts who seek top-notch picture quality and modern technological solutions.

The input lag of the LG C4 is at an incredibly low level in every scenario. Even the most dedicated gamers will surely appreciate the very low input lag at demanding 4K 120 Hz settings with HDR, which is just 5 ms. It is also worth noting that the lag at the same settings but with Dolby Vision HDR enabled remains unchanged, which is not so obvious with the competition. Therefore, it deserves the highest rating and recommendation.

The Samsung S90D OLED features an exceptionally low input lag, regardless of resolution and frame rate, both in SDR and HDR modes. Results around 10 ms are truly impressive and significantly enhance the gaming experience. Such a low input lag ensures instant reactions to on-screen actions, which is crucial in fast-paced games where every millisecond counts. This allows users to enjoy fluidity and precision, making the Samsung S90D a superb choice for those prioritising gaming performance.

LG C4 in combination with a PC performs excellently, thanks to a very low latency of just 13.5 ms, which is practically an instantaneous response between the mouse, eye and screen. A particularly important issue when working on the screen is the readability of text, which in the case of the tested television is very good. However, it is worth noting that to achieve sharp fonts, you need to enable the passthrough option in the settings.

The RWBG pixel arrangement has no significant impact on the display of fonts or letters, which is a considerable advantage over Samsung's QD-OLED panels. Users of both computers equipped with the Windows operating system and macOS will certainly be satisfied with the experience on the screen of the tested television.

The Samsung S90D television works perfectly with a PC. The fonts are clearly visible, making it easier to read text and use applications. Additionally, it supports chroma 4:4:4 at 4K resolution and a refresh rate of 144 Hz, which ensures full colour reproduction and sharp image quality. It is worth mentioning that the input lag of only 5 ms is extremely advantageous, particularly for gamers and professionals working with graphics. With such low latency, using the television as a monitor becomes a pleasure, allowing for comfortable and responsive work. The Samsung S90D television is an excellent choice for users seeking performance and quality in everyday computer use.

The undeniable advantage of OLED panels is their efficiency in the context of group viewing, that is, from various angles. LG C4 maintains very good contrast, colour saturation, and fidelity. Although this is not the result of organic televisions supported by MLA technology, it cannot be said that anyone who purchased the device was dissatisfied with the results obtained. However, it should be noted that at sharp angles, a slight greenish tint can be observed. This is a characteristic feature of WRGB panels from LG, without the aforementioned microlens technology, and unfortunately, there is nothing that can be done about it.

The viewing angles on the Samsung S90D television, thanks to OLED technology, are unparalleled. OLED offers excellent colour and contrast reproduction, even at wide viewing angles, ensuring that the image remains sharp and vibrant from almost any perspective. Users can enjoy a consistent visual experience, regardless of where they are watching the screen from. The only televisions that might perform better in this regard are models equipped with MLA (Micro Lens Array) or QD-OLED technology. These innovative solutions further enhance image quality from various angles, but under standard conditions, OLED remains the leader in terms of viewing angles, providing users with exceptional visual experiences.

The maximum brightness of the television in SDR materials is 367 nits. For an OLED television, this is a very good result that allows for quite comfortable viewing during the day. It is worth noting two things. Thanks to the glossy coating of the screen, reflections are held well in place and do not spill over onto the rest of the display. The second issue is the brightness of the screen at 100% white fill, which hovers around 220 nits, a remarkable result, as until recently OLED televisions in this range could only "boast" of brightness that was half as much. This means that conditions for watching, for example, winter sports will be very good.

When watching during the day, the Samsung S90D performs very well, achieving an average brightness level of around 400 nits, which is a very good result for OLED technology. Despite the glossy display, the suppression of reflections is at a decent level, allowing for comfortable viewing even in bright rooms. The only noticeable drawback of this technology, rather than the television itself, is the brightness at 100% white screen fill. In such conditions, OLED may struggle to achieve extremely high brightness. Situations like this can be seen when we want to watch winter sports, such as ski jumping.

LG uses the well-known proprietary WebOS system that has been around for many years. The system offers practically all the most important applications, and the few that are missing can be counted on one hand, such as CDA or KODI. It is also worth mentioning that the modern web browser and the remote control with a built-in mouse allow for convenient use of streaming services in this way, if there is no built-in application.

WebOS also features a highly valued ability to perform operations with a cursor that appears when the remote control is in motion. The convenience of such a function is invaluable when typing in queries or passwords for portals. WebOS, like most systems, also supports features such as screen mirroring, AirPlay, voice search in Polish, and the ability to connect headphones via Bluetooth. On more practical matters, WebOS allows simultaneous use of headphones and the TV speaker, which will certainly be a big help for people with hearing impairments. Among the more interesting features, particularly appreciated by sports fans, is the option to turn on an alert notifying about an upcoming match, ensuring that we never miss a broadcast. The home panel is also praiseworthy, allowing for the control of all smart devices connected to the home network. For example, the cycle of completed laundry will be signalled by a notification in the upper right corner.

In summary, the WebOS system, although less known and having certain limitations compared to Android TV, offers stable and fast performance and supports most features that users may need. It is a solid solution for those looking for a simple and effective operating system in their television.

The Samsung S90 television offers a range of features that significantly enhance user comfort and make it an ideal device for home entertainment. The Tizen system, upon which this model is based, is a modern and advanced platform that provides users with an intuitive and smooth experience. Thanks to the user-friendly interface, navigating through applications and settings is quick and intuitive, making it easier for even those less familiar with technology to use the television. Tizen supports a rich set of applications, including all popular streaming services such as Netflix, YouTube, and Amazon Prime Video. A novelty for 2024 is also the availability of voice search in Polish. It's worth noting the eco-friendly solar remote, which is not only environmentally friendly but also practical for everyday use. For example, the remote can control multiple devices connected to the television, which means we don't have to use multiple remotes. Additionally, the television supports AirPlay, allowing easy content sharing from Apple devices such as iPhone or iPad. The S90D Samsung also allows for the connection of various Bluetooth devices, such as mice, keyboards, or headphones, which increases its versatility and enables the personalization of user experiences. Users can easily adjust their settings to make the most of the television's capabilities. The only downside that can be pointed out is the lack of USB recording support. For some users, this may be a limitation, especially when wanting to archive favourite programmes or films. Despite this, the Samsung S90D offers many advanced features and technologies that make it an excellent choice for anyone looking for high-quality entertainment in their home.

The default file player in LG C4 definitely handles all image resolutions well. We can successfully play videos recorded in virtually all the most popular formats, including Dolby Vision. The only codec that the C4 does not support is H.266 VVC, although this is currently rather unused. However, it is a pity that subtitles in .txt format are not supported. Attention should be paid to the supported image formats, of which there are only three: JPEG, PNG, and, importantly for Apple phone users - HEIC. However, the tested television cannot be faulted for lack of diversity in audio files, the playback of which will not be met with a compatibility warning.

Samsung S90D is equipped with a built-in player that supports most popular video formats, allowing for convenient playback of films from various sources. The player also supports subtitles in Polish and enables users to customise the font colour, increasing comfort while watching content with subtitles. In terms of photo formats, the television handles many of them well, however, one of the few drawbacks is the inability to play the popular PNG format. Nevertheless, the overall file playback capabilities of the S90D are outstanding.

The implemented audio system in LG C4 has been very well tuned, allowing us to experience strong bass, as well as balanced mid and high tones. We can confidently say that in its price range, it is one of the better sounding televisions. However, we believe that those deciding to purchase the C4 will already own a dedicated audio set. The presence of DTS-HD Master Audio and Dolby Atmos codecs will not be without significance.

The Samsung S90D television is equipped with a 2.1 audio system with a total power of 40 W, providing clear and dynamic sound. Thanks to the subwoofer located at the bottom of the casing, the bass is deep and palpable, while the mid and high tones remain well balanced. It is worth noting that the twin model S94D offers an even more advanced 2.1.2 speaker system with a power of 60 W. If the silver colour of the S94D casing is not a hindrance, and the price difference between these models is minor, it is worth considering the version with the number "4" at the end. Although the television does not support the DTS format, it offers other audio technologies such as Dolby Atmos and Dolby Digital Plus. However, to fully enjoy spatial sound, it is worth considering connecting an external audio system.

LG OLED C4 vs Samsung OLED S90D / S94D (WRGB OLED)

Advantages

Disadvantages

Our verdict

TV appearance

Where to buy

Contrast and black detail

HDR effect quality

Factory color reproduction

Color reproduction after calibration

Smoothness of tonal transitions

Image scaling and smoothness of tonal transitions

Blur and motion smoothness

Console compatibility and gaming features

Input lag

Compatibility with PC

Viewing angles

TV efficiency during daytime

Details about the matrix

TV features

Playing files from USB

Apps

Sound