Compare LG OLED C4 vs Sony X85L

The LG C4 stands out in its price range, likely offering little competition for many users. With its versatile features, it is perfect for movie and series enthusiasts, as well as gamers. The advanced WebOS system, paired with a remote that functions like a mouse, ensures an excellent user experience, making it a compelling choice for long-term brand loyalty. The OLED panel, built on over a decade of expertise, continues to impress with its ability to deliver a dynamic and immersive viewing experience. The brightness performance on HDR content is exceptional, with a deep and vibrant image. The dynamic tone mapping function is particularly noteworthy, making HDR10 content nearly as stunning as Dolby Vision.

Additionally, LG's televisions are well-suited for calibration, offering flexibility for home users with basic settings and professionals using 3D LUTs. For gaming enthusiasts, the LG C4 is a top choice, like most of the manufacturer’s OLED models. Thanks to HDMI 2.1 support and features like VRR, ALLM, FreeSync, and G-Sync, the gaming experience is incredibly smooth. The panel’s 144Hz refresh rate and advanced motion smoothing make it ideal for high-performance sports broadcasts. Overall, it’s hard to fault the LG OLED C4, as it offers exceptional features at a competitive price.

Sony X85L is a model from 2023 that will continue to be offered in 2024 by the Japanese manufacturer. Its biggest advantage is the Google TV system. It currently provides the greatest access to applications, so we don't have to fear that any of our favorite apps will be missing. The intuitive interface and voice control feature via Google Assistant make daily use of the television convenient and modern. In terms of picture quality, Sony X85L performs well. Thanks to local dimming (albeit with a very average number of zones), black looks really decent. Additionally, its quite high brightness allows for comfortable TV viewing during the day, even in well-lit rooms. Moreover, the television offers the ability to record programs from built-in tuners, which is a great convenience for those wanting to control what and when they watch. In terms of motion fluidity, the X85L also does not disappoint. The 120 Hz panel and Motionflow system provide smooth display of dynamic scenes, pleasing both movie buffs and sports fans. The TV is also equipped with a range of features for gamers, including VRR, Game Bar, and G-Sync support, making it an attractive choice for gaming enthusiasts. Of course, the television is not without its drawbacks. The lack of HGiG support and high input lag in Dolby Vision mode can be disappointing for more demanding gamers. Additionally, the compromise between font readability and image fluidity when connected to a PC may not appeal to everyone. Nevertheless, Sony X85L is decent equipment, particularly worth noting if it can be purchased on promotion.

The LG OLED C4, as the name implies, utilises an organic matrix developed in-house, making it one of the most recognisable series on the market. With over 10 years of experience producing self-emissive panels, LG has continually refined its designs, and the 2024 models are the pinnacle of this progress. An OLED screen ensures flawless contrast and black levels, immersing viewers in the director’s vision. OLED technology stands out for its lack of traditional backlighting, instead relying on current flowing through organic pixels. This design allows for precise image control, eliminating issues like dimming of fine details or halo/blooming effects.

In our test scenes, two standout features were immediately apparent: perfect light separation and an abundance of detail in "The Revenant." Crucially, the C4 displayed the distinct green tint some televisions attempt to correct, without issues. The LG OLED C4 excels in delivering exceptional contrast, resulting in incredible depth and richness. Test results confirm that the black levels are flawless, particularly in high-contrast scenes. Ultimately, the LG C4 offers an unmatched contrast ratio, delivering a visually stunning experience whether watching movies or gaming.

The Sony X85L TV is equipped with a VA panel, which in itself offers quite good contrast. Additionally, this model features local dimming technology – in the 55-inch version, it includes 24 zones. Although this number is not impressive, it naturally increases with the size of the TV. The contrast in the X85L is good, though not the best, especially in comparison to other TVs also equipped with advanced local dimming technology. Results at the level of 8000:1 are satisfactory, but they appear average against the competition. In some cases, such as the third scene from the movie Arrival, the contrast is promising and performs quite well. This is thanks to the very good dimming algorithm that Sony has been using in its TVs for years. Unfortunately, due to the limited number of local dimming zones, the TV suffers from noticeable blooming, which can be seen, for example, in scenes with the helicopter from the movie Sicario 2.

The HDR performance of the LG OLED C4 is impressive, firmly placing it in the higher tier. Most films exceed 700 nits, delivering a highly realistic image. While none surpass the 1,000-nit mark, the combination of these results with the TV’s infinite contrast and perfect blacks significantly enhances the visual experience. The final scene, with a full-screen flash of sunlight, is slightly less bright than the others but still maintains a solid level of brightness. Another highlight is the excellent DCI-P3 colour gamut coverage, which ensures incredibly vibrant colours. The HDR technology in the LG OLED C4 delivers exceptional colour and detail reproduction. The dynamic tone mapping feature optimises brightness levels, ensuring ideal light reproduction in every scene, even in the most demanding high-dynamic films.

The Sony X85L TV offers solid HDR performance with a brightness level of 750 nits, which is sufficient to enjoy vivid effects. In scenes of moderate difficulty, such as the first, third, or fifth test scenes, a brightness of around 600 nits allows one to fully experience the HDR effect. Unfortunately, in more demanding segments, such as the scene from the movie Sicario 2, the TV shows its limitations. Drops in brightness to 250 nits make the HDR effect lose its impressive quality and resemble regular SDR instead. Nevertheless, it is worth highlighting the very good coverage of the DCI-P3 color palette at 95%, which definitely deserves praise and positively affects the overall image quality.

The best factory mode on the tested television was "Filmmaker," which served as the basis for all evaluations. In terms of colour reproduction, this mode performed reasonably well; however, certain flaws significantly detracted from the overall viewing experience. The most fundamental issue was the white balance, which exhibited a noticeable dominance of red, skewing the image characteristics. This resulted in a pronounced yellow tint to whites and a general shift of all colours towards warmer tones.

The gamma, an equally crucial—if not more important—aspect, was notably lowered, leading to a marked reduction in contrast. Additionally, the television frequently lost detail at the start of the gamma curve. These issues were most apparent in SDR content.

When examining HDR materials, the same yellowing effect in the white balance was observed, as seen with SDR content. However, the EOTF curve, which replaces the gamma curve for HDR, was near perfect and left little room for criticism.

The Sony X85L television was tested in IMAX Enhanced mode, which, although associated with world-class cinema, does not guarantee an image that aligns with the director's vision. The main issue is the white balance – there is a noticeable strong dominance of blue color and significant lack of red. As a result, the image becomes unnaturally cool and appears artificial. The color reproduction errors were confirmed by the Colour Checker test, which showed significant discrepancies – colors were "scattered" like shots from a rifle, and only a few samples hit the target values. This clearly shows that the precision of color reproduction leaves much to be desired.

The brightness of the image is one of the positive features of the TV. The gamma for HD content is at an acceptable level, although there are minor errors, but generally, it is quite good. However, the brightness characteristics for 4K materials remain an issue, controlled by the EOTF curve. It is evident that very small, bright elements of the image are too dim, which is a result of the limited number of dimming zones due to the design of the television.

As mentioned, LG televisions come with advanced tools to facilitate an accurate calibration process. By utilising these tools, we meticulously adjusted the image to align with the director’s original vision. Without overstating, the results were outstanding. Both SDR and HDR content now achieve a level of visual fidelity that reflects how films are intended to be seen.

Examining the colour accuracy on the "ColourChecker" palette reveals impressive results, with almost all colour errors falling below a delta of "1," aside from two minor exceptions. Post-calibration, the LG OLED C4 demonstrated a marked improvement in colour reproduction, particularly in SDR and HDR modes. Testing the TV after calibration highlighted its capacity for delivering exceptionally accurate colours, underlining the high calibre of this model. The LG C41LA offers a stunningly precise colour palette, sure to satisfy even the most discerning viewers.

Thanks to the use of calibration tools offered by Sony X85L, the image quality has been significantly improved. After calibration, the white balance for HD content is much more stable, making colors look more natural and the image gains authenticity. Although it is not perfect, these changes allow viewers to enjoy a more realistic representation of colors, eliminating the earlier cool tone. The gamma, which already performed decently, has been adjusted to an even better version. As a result, tonal transitions and brightness are more consistent, positively affecting the depth and detail of the image.

As for 4K content, despite efforts, the white balance still struggles with a deficiency of red, which can result in overly warm colors in some scenes. Synthetic tests showed that the EOTF curve in HDR is quite stable, with a slight boost in mid-bright scenes. However, in real film materials, the TV can still be too bright with fine, light details, which is a result of the limitations of large local dimming technology.

Nonetheless, calibration has brought significant benefits, particularly in color accuracy, improving overall image quality and providing a more natural and cohesive directorial vision.

The fluidity of tonal transitions in LG TVs has long been a delicate issue, as the manufacturer, despite excelling in many areas, has consistently faced challenges in this aspect. However, the tested TV performed notably well in this regard. Issues were primarily confined to darker scenes, particularly the final two, where imperfections were more apparent. Interestingly, this model delivered better results in tonal transitions than LG's flagship model, the G4, showcasing a commendable improvement in this area.

The fluidity of tonal transitions in the Sony X85L is at a good level – the color gradation is smooth, even in more demanding areas, which makes the perception of scenes positive and natural. The biggest problems occur in the shadow areas, where subtle color blends may be visible. Nevertheless, the television performs well enough that most viewers should not notice these minor imperfections.

Let us revisit the function responsible for smooth gradation and consider its role in improving lower-quality materials. The default smoothing of tonal transitions, while decent, can be further enhanced. The feature includes a slider for adjusting its strength, and we recommend selecting the first option. This setting strikes a balance, offering excellent results without compromising important details through unnecessary blurring.

The image scaling on the LG C4 is commendable, though not entirely without flaws. By default, the image appears slightly sharper, though not to an intrusive degree. While jagged edges on elements like trees are occasionally visible, this issue is relatively minor compared to similar offerings from other manufacturers.

In terms of smoothing tonal transitions, the Sony X85L television does not offer any dedicated enhancement options, which is a downside. On the other hand, image scaling performs quite well – the television adds a bit of artificial sharpness, which can make details such as tree branches more pronounced, although sometimes with noticeable jaggedness. This type of effect may appeal to some viewers who prefer a more detailed image.

The LG G4 supports a maximum refresh rate of 144 Hz, achievable only when connected to a high-performance PC. Otherwise, the television operates at a maximum of 120 Hz, the recommended setting for viewing sports or content with fast-paced motion. For those prioritising smooth image quality, LG has included a versatile motion smoothing feature called "TrueMotion." This function is split into two adjustable sliders: De-Blur, which sharpens moving images, and De-Judder, which reduces jitter. Both sliders offer a range of settings from 0 to 10, enabling users to fine-tune the motion smoothness to their preference.

The LG OLED C4 boasts an impressive average response time of less than 1 millisecond, as confirmed by our measurements. This results in exceptional image clarity, far surpassing LCD televisions, which often have response times of several milliseconds. This clarity is evident in tests like the "UFO Test," where no trailing blur is visible behind moving objects.

The Sony X85L, equipped with a 120 Hz panel, will meet the expectations of a wide range of users – from sports and gaming fans to movie buffs. Movie enthusiasts will surely appreciate the presence of one of the best motion smoothing systems, Motionflow. This system offers adjustment via smoothness and clarity sliders – smoothness is responsible for motion fluidity, eliminating stutter, while clarity enhances the sharpness of fast scenes, reducing blur.

The LG C4, like nearly all OLED televisions from the manufacturer, excels in its compatibility with consoles and PCs. With the inclusion of four full-bandwidth HDMI 2.1 ports supporting 48 Gbps, the TV incorporates a range of features to enhance the gaming experience. Notably, it offers simultaneous support for FreeSync and G-Sync, making it an ideal choice for gamers using AMD or Nvidia graphics cards. For those seeking the best possible gaming quality, the integration of HDR Dolby Vision and HGIG mode is particularly impressive. HDR Dolby Vision operates with remarkably low input lag across all settings, ensuring smooth and responsive gameplay.

A standout feature in LG's televisions is the GameBar, which allows users to adjust settings in real-time without leaving the game. This includes options for customising the image for viewers with visual impairments, a thoughtful addition. Additionally, enabling VRR (Variable Refresh Rate) does not result in a loss of contrast—a benefit of the OLED panel's self-emissive technology, eliminating the need for conventional backlighting. While some slight flickering of grey tones may occur, this is a characteristic of VRR technology across all manufacturers.

In summary: The LG C4, like the brand's other OLED models equipped with high-refresh-rate panels and HDMI 2.1, provides a seamless and immersive gaming experience. For gamers demanding top-tier performance, this TV is an outstanding choice.

Sony X85L offers quite a solid set of features for gamers, making it an attractive choice for gaming enthusiasts. First and foremost, the TV has a 120 Hz panel, translating to smooth and dynamic image display, ideal for both fast-paced action games and more demanding sports titles. It is equipped with two HDMI 2.1 ports with full bandwidth of 48 Gb/s, allowing for the full utilization of next-gen console capabilities. Additionally, the Sony X85L supports VRR (Variable Refresh Rate) technology, which helps reduce stuttering and artifacts during gameplay, providing a fluid experience. The TV also supports G-Sync, which is particularly beneficial for gamers using NVIDIA graphics cards, allowing for screen refresh rate synchronization with GPU performance, eliminating the tearing effect. It is worth mentioning the Game Bar feature, which facilitates quick access to essential gaming-related settings such as VRR, brightness levels, and display modes, making it convenient and useful during gameplay.

However, there are certain limitations. The TV does not support HGiG, which may be a downside for some gamers, as HGiG optimizes HDR effect rendering in games, providing a more authentic visual experience. Additionally, while Dolby Vision mode is available, it is not practical for gaming due to very high input lag.

The latency time of the LG C4 is exceptionally low across all scenarios, making it a standout choice for even the most dedicated gamers. At demanding settings of 4K 120 Hz with HDR, the input lag is an astonishingly low 5 ms, ensuring an incredibly responsive gaming experience. Notably, this low latency remains consistent even when Dolby Vision HDR is enabled—a feature that competitors often struggle to maintain without increasing delay.

This consistency and performance firmly position the LG C4 as a top-tier option for gamers seeking high-quality visuals and minimal lag. It undoubtedly earns the highest rating and strong recommendation for gaming enthusiasts.

In general, the input lag on the Sony X85L is very good, which is crucial for smooth gameplay and quick reactions in games. In standard modes, especially when using HDMI 2.1 and playing in 4K resolution at 120 Hz, the input lag is minimal.

Unfortunately, the Dolby Vision mode is an exception to this rule. In this case, the input lag reaches as much as 95 ms. Such a high level of latency makes the Dolby Vision mode practically unplayable, as reactions to commands are noticeably delayed.

When paired with a PC, the LG C4 delivers excellent performance, largely due to its impressively low latency of 13.5 ms, ensuring a near-instantaneous response between the mouse, eye, and screen. This makes it an ideal choice for tasks requiring precision and speed.

One of the most crucial aspects of using a TV as a monitor is text readability, and in this regard, the LG C4 excels. The text appears sharp and clear, although enabling the passthrough option in the settings is necessary to optimise font sharpness.

The RWBG pixel layout is another advantage, as it does not significantly affect the clarity of fonts or letters—a notable improvement compared to Samsung's QD-OLED panels. Whether using Windows or macOS, the LG C4 ensures a smooth and satisfying user experience for work or general PC use.

The cooperation of the Sony X85L television with a PC is a bit of a balance between image quality and user comfort. If we want to use the television for work, where clear text is important, we need to set the refresh rate to 60 Hz. In this mode, text looks good and does not strain the eyes, which is crucial if we plan to spend a long time in front of the screen.

On the other hand, if the television is to be used for gaming, where we can take full advantage of its capabilities at 120 Hz, we must take into account that the readability of fonts decreases significantly. The image becomes less sharp and the text harder to read, which can be frustrating. In short – the Sony X85L will work well for occasional connection to a computer, but if we need it daily for work and gaming, this compromise may not be to everyone's liking.

One of the undeniable strengths of OLED panels is their exceptional performance for group viewing, allowing for consistent image quality from a range of viewing angles. The LG C4 upholds excellent contrast, colour saturation, and fidelity, ensuring a satisfying experience for viewers in different seating positions.

While it lacks the enhancements provided by MLA (Micro-Lens Array) technology, the C4 still delivers impressive results that most owners are likely to find highly satisfactory. However, at sharper angles, a slight greenish tint can sometimes be observed. This is a known characteristic of LG’s WRGB panels without micro-lens technology and, unfortunately, is an inherent limitation that cannot be mitigated.

The viewing angles on the Sony X85L, as is typical with VA panels, are not the best. The image looks great when viewed straight on, but just shifting to the side reveals that colors lose their intensity and contrast noticeably weakens. This can be a problem if the TV is intended for watching with a larger group, where viewers are seated at different angles. For those who usually watch solo or from one central spot, this won't be a big downside, but when viewing from the side, the picture quality unfortunately decreases.

The maximum brightness of the LG C4 in SDR content reaches 367 nits, which is an impressive result for an OLED television and ensures comfortable viewing, even during the day. Two notable aspects enhance the experience. First, the glossy coating on the panel effectively contains light reflections, preventing them from spreading across the screen and disrupting the image.

Secondly, the brightness of the screen at 100% white fill measures approximately 220 nits, a significant improvement over earlier OLED models, which often struggled to achieve even half this level. This enhancement provides an excellent viewing experience, particularly for bright and vibrant content such as winter sports broadcasts.

The performance of the Sony X85L TV during the day is quite decent. Its satin screen coating handles light reflection moderately well, meaning that in bright rooms, there may be reflections, but they are not bothersome enough to significantly interfere. The brightness in SDR mode at 570 nits is sufficient for comfortable TV watching during the day, even with natural light coming through the windows. This ensures that colors remain vivid and the image is clearly visible, making the TV effective for everyday use.

LG has used its well-established proprietary WebOS system, a staple in its televisions for many years. This system provides access to virtually all major applications, with only a few notable exceptions, such as CDA or KODI. Additionally, the modern web browser and the remote control with a built-in mouse make streaming services easily accessible, even when specific apps are unavailable. One of WebOS's standout features is its ability to operate using a cursor that appears when the remote control is moved, offering great convenience when entering queries or passwords.

WebOS also includes screen mirroring, AirPlay, and Bluetooth headphone connectivity. For users with hearing impairments, it’s worth noting that WebOS allows the simultaneous use of headphones and the TV speaker, providing added flexibility. For sports fans, the system has a handy alert feature that notifies users of an upcoming match, ensuring they never miss a game.

Another highlight is the home panel, which enables users to control all smart devices connected to their home network. For example, a completed washing cycle will trigger a notification in the upper right corner of the screen.

In conclusion, while WebOS may not be as widely known or feature-rich as Android TV, it offers stable, fast performance and supports the majority of functions that users need. It is a solid and reliable option for those seeking a simple, effective, and user-friendly operating system for their television.

The Sony X85L operates on the Google TV system, which is a significant advantage for many users. The television offers wide access to applications, and using streaming platforms is smooth and user-friendly. The interface is intuitive and easy to master, allowing for quick switching between apps and searching for favorite content. Google TV allows for personalization of the home screen, enabling each user to customize it according to their preferences. Google Assistant further enhances the experience by offering voice control and quick adjustments of settings or movie searches without the need for a remote.

In terms of user functionality, the Sony X85L offers many useful options. The television has the capability to record programs, which is a significant convenience for those who want to watch their favorite content at any time. AirPlay support allows for seamless streaming of content from Apple devices, which iPhone and iPad owners will appreciate. Additionally, thanks to built-in Bluetooth, various devices such as headphones or keyboards can be connected. However, one drawback is the lack of a PiP (picture-in-picture) function, which may disappoint users who prefer multitasking on the screen.

The design of the Sony X85L television, while it may not be the thinnest, is solid and elegant. The metal base with adjustable legs is one of its strong points, allowing for height and width adjustments of the television to fit different furniture and spaces. This practical solution enhances the interior and adds a modern character to it.

The default file player on the LG C4 handles various photo resolutions without issue, making it a reliable option for viewing images. It supports nearly all popular video formats, including Dolby Vision, ensuring compatibility with high-quality content. However, the television does not support H.266 VVC codec, which is relatively rare at this stage, so this limitation is not a significant drawback.

A notable omission is the lack of support for subtitles in the .txt format, which could be inconvenient for users who prefer using text-based subtitle files. In terms of photo formats, the C4 supports only three: JPEG, PNG, and HEIC (the latter being particularly useful for Apple phone users). While this is somewhat limited, it covers the most common formats for everyday use.

The TV excels in audio file compatibility, with no issues playing a wide range of audio formats, ensuring seamless music and sound playback without any compatibility warnings.

Sony X85L has no problem playing most popular file formats from USB, which is a big plus for those who often reach for external content. However, it is worth mentioning a small downside – the built-in player does not allow changing the font color in subtitles, which can be bothersome for some. Fortunately, thanks to the advanced Google TV system, users have a wide range of options. It is easy to install alternative media players that offer more customization options.

The LG C4 audio system is well-tuned, providing strong bass and balanced mid and high tones. It stands out as one of the better-sounding televisions in its price range. However, most buyers will likely already have a dedicated audio setup. The presence of DTS-HD Master Audio and Dolby Atmos codecs enhances the overall experience, offering high-quality sound for those who rely on the TV's built-in speakers.

The sound on the Sony X85L is good – it is clear across the entire scale, allowing you to enjoy both dialogues and music. The bass, although light, is perceptible and adds some depth to the overall sound. However, it should be emphasized that this is a subjective assessment – some will be satisfied with such a sound profile, while others may need additional audio equipment to fully feel the stronger tones and more spacious sound.

LG OLED C4 vs Sony X85L

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