Samsung OLED S95D vs LG OLED G4

Samsung S95D offers excellent HDR performance, providing uniform effects across all scenes exceeding 1500 nits, except for the fifth scene, where brightness drops to 800 nits. Despite this, the television maintains a high level of image quality. A significant advantage of QD-OLED technology is its ability to retain high brightness even in the smallest elements on a black background, which is uncommon in LCD and mini LED televisions. This ensures that every scene captivates with strong light effects, regardless of the size of the illuminated surface. Only in the brightest scenes with large light areas does brightness slightly decrease, which is typical even for standard LG-produced OLEDs. Additionally, the quantum dot coating has allowed for unprecedented high coverage of the BT.2020 colour gamut at 88%.

The LG G4 excels in delivering an incredibly vivid HDR experience, positioning it as one of the best models in its class. Equipped with second-generation Micro Lens Array (MLA) technology, it achieves a remarkable peak brightness of 1474 nits in real-world scenes. While it may not match Mini LED-backlit LCD TVs in full-screen white scenes, the overall performance is outstanding. The fine details in HDR content shine brightly, a distinct advantage of OLED technology over non-OLED displays. With this impressive brightness and wide DCI-P3 colour gamut coverage, HDR content is brought to life with unmatched engagement and immersion.

The Samsung S95D’s Filmmaker mode excels in colour accuracy, making it ideal for true-to-life viewing and closely reflecting the intent of content creators. We rely on this mode for all testing, as it presents significantly more detail than the often oversaturated standard or dynamic modes. Initially, viewers may find the image slightly warmer in Filmmaker mode, but it brings out a more authentic, balanced display. Despite being in the premium segment, the factory settings aren’t perfect. For example, there is a dip in red tones in the white balance for both HD and HDR content, with Colour Checker tests showing a cooler colour bias that shifts the image towards blue, impacting the natural appearance of scenes. In the sample photo, the boy appears in cooler tones, which diminishes realism.

Brightness performance for HD content is generally on point, though minor inconsistencies appear. However, the more noticeable issue arises with 4K HDR content. While the EOTF curve seems accurate in test patterns, real scenes sometimes reveal fluctuations, where some areas are overly brightened or darkened. Although the S95D offers reasonably good out-of-the-box colour reproduction, calibration is recommended to achieve a more precise, natural, and immersive picture, maximising the television’s potential.

Before calibration, the "Filmmaker" mode on the TV had a noticeable red and green colour dominance, resulting in a warm-yellow hue across both SDR and HDR content. This warm tone, typical of modes like "Cinema" and "Filmmaker," led to a yellowish cast that was evident when switching from the "Standard" mode.

Looking at the brightness characteristics, the Gamma chart showed decent performance for mid-tones and bright whites, but it struggled with the darkest details, which tended to merge into a black blob. HDR content, as represented by the EOTF curve chart, displayed a drop in contrast due to excessive brightness, which overshadowed fine details and negatively affected the overall image quality. Additionally, the "ColourChecker" chart revealed that colours were under-saturated, contributing to a less accurate and vibrant visual experience.

This provided a good foundation to build on, but calibration was needed to bring out the full potential of the "Filmmaker" mode and address these issues.

Calibration can significantly elevate a television's image quality, enhancing both accuracy and overall viewing experience. For the Samsung S95D, calibration has notably refined the white balance, removing major colour inaccuracies to produce more natural and balanced tones, which allows for a closer representation of the filmmakers’ vision. The adjustments bring subtle improvements to contrast and gamma, with more pronounced distinctions between light and dark areas, adding depth and revealing finer details in both shadows and highlights. This creates a richer, more lifelike image with enhanced detail, particularly in darker scenes where shadows now hold greater clarity, while bright areas appear well-balanced rather than overly intense.

Despite these improvements, the EOTF curve remains slightly below ideal, which might influence the handling of dynamic scenes. However, the enhanced tonal transitions and boosted contrast post-calibration make the S95D an excellent choice for film and high-definition content, bringing it closer to reference-level quality. This calibration enables the television to deliver a more immersive, accurate visual experience in line with industry standards, ultimately offering a more rewarding viewing experience.

The manufacturer has been offering extensive support for the calibration process in its LG televisions for many years. Therefore, we used 2- and 20-point grayscale adjustments along with an advanced CMS (Colour Management System) to optimise the display. As shown, the calibration procedure greatly improved each parameter. The results included studio-quality colour reproduction, enhanced detail in dark areas, corrected brightness characteristics, and accurate colour saturation. This led to a near-perfect match with the reference image—the one the film director saw on the preview monitor. It’s also worth mentioning that LG G4 televisions are unique in offering even deeper image adjustments through 3D LUT matrices, a feature primarily suited for post-production or graphics studios.

The Samsung S95D handles tonal transitions in lower-quality materials exceptionally well. In tests featuring a screen with a light bulb, there are virtually unnoticeable transitions between shades of grey, positioning it among the best televisions we have evaluated in this aspect.

Regarding digital processing, the S95D excels in rendering the entire image—whether it's branches or figures—without any jagged edges or overly pronounced contours. However, one point to note is that the image appears slightly trimmed. Despite this minor issue, the television still performs admirably, ensuring that details in lower-quality materials remain noticeable and well-defined. This ability to maintain clarity and depth in various content types further solidifies the S95D's reputation for delivering a high-quality viewing experience.

The LG G4 does not perform well with materials rich in tonal transitions, leading to a pronounced posterization effect. However, the manufacturer has included a smoothing system called "Gentle Gradation," with three levels: Low, Medium, and High. These settings are effective at smoothing bright colours, though less so for darker tones. It is recommended to use the Low setting, as the higher levels can distort the director's intentions by removing film grain.

When it comes to upscaling lower-quality material, the television's performance is quite good, delivering a sharp and clear image. However, attention should be paid to the jagged edges of fine details and the occasional halo effect around figures. This occurs due to the sharpening imposed by the LG G4, even when the lowest setting is selected (0). This is a noticeable change from the LG G3, which did not apply such strong sharpening, even at setting 0.

The Samsung S95D TV, featuring a refresh rate of 120 Hz (and even 144 Hz when configured correctly for PC use), guarantees exceptional motion smoothness. Samsung provides a range of image sharpness settings on a ten-point scale, enabling users to customise the display according to their preferences— favouring a more cinematic look or a smoother, theatrical feel.

In UFO tests, the OLED panel demonstrates its strengths by effectively eliminating any blurring. The rapid pixel response ensures that dynamic movements are replicated with remarkable precision, resulting in a fluid viewing experience that enhances fast-paced content, such as action films or competitive gaming. This combination of high refresh rates and superior pixel response makes the S95D an outstanding choice for those seeking crisp, clear motion in their visual media.

The LG G4 offers a maximum refresh rate of 144 Hz, achievable when connected to a powerful PC. For most users, however, the TV operates at a maximum of 120 Hz, ideal for watching sports or other content with fast motion. To improve image fluidity, the television includes the "TrueMotion" motion smoothing system, which features two separate sliders: De-Blur (for the sharpness of moving images) and De-Judder (for judder reduction). These sliders allow users to adjust the level of smoothing between 0 and 10, ensuring everyone can find the ideal setting.

With a response time of 0.78 ms, the LG G4 delivers exceptionally clear images, outperforming LCD televisions, which can have much slower response times. This results in no trailing blur behind moving objects, as shown in the "UFO Test." The TV also provides precise control over motion smoothing, which is especially beneficial during fast-paced video game sequences. Thanks to OLED technology, the G4 eliminates ghosting, ensuring a crisp and clear image even during the most dynamic sports or action scenes.

The Samsung S95D TV is expertly designed to meet the needs of gamers, featuring four HDMI 2.1 ports that support essential functionalities like Auto Low Latency Mode (ALLM), Variable Refresh Rate (VRR), and HDR Gaming Interest Group (HGIG). While the HDMI 2.1 ports do not offer the full 48Gb bandwidth, they are still adequate for achieving the desired resolution and smooth performance.

These technologies enable players to experience smoother and more responsive gameplay, significantly enhancing comfort and performance during intense gaming sessions. A standout feature is the Xbox app, which facilitates cloud gaming without requiring a console. This allows gamers to access an extensive range of titles directly on the TV, enjoying high image quality and fluid gameplay.

Additionally, the S95D includes a Game Bar feature, making it easy to manage game settings with quick adjustments, such as changing the screen ratio—an extremely useful function for various games and gameplay modes. The support for G-Sync and FreeSync is another advantage, particularly for Nvidia and AMD graphics card users.

Although the S95D lacks support for Dolby Vision, it still provides an impressive array of features, making it an ideal choice for console gaming enthusiasts. Overall, the S95D combines cutting-edge technology with exceptional picture quality, creating a comprehensive package for any gamer seeking an immersive experience.

The LG G4 TV supports all the features encompassed by the HDMI 2.1 standard, making it a gaming powerhouse. During testing, every feature activated seamlessly, ensuring a smooth experience for both console gamers and PC users. Notably, the HGIG mode (HDR Gaming Interest Group) is implemented correctly, allowing games mastered to brightness levels higher than the TV’s maximum luminance to map tones accurately, preserving the game’s original visual integrity.

A notable highlight is the dedicated GameBar, which can be accessed at any time to quickly check or adjust game settings. More importantly, enabling VRR (Variable Refresh Rate) does not compromise contrast—a common issue in TVs with local dimming or Mini LED backlighting. This is thanks to the OLED panel’s self-emissive pixels, which maintain consistent contrast. However, a slight grey flicker may appear when VRR is enabled, though this is standard across OLEDs.

In summary, the LG G4, like most OLED TVs, is ideal for gaming and online competitions. Its HDMI 2.1 ports offer a full 48 Gbps bandwidth, supporting features such as VRR, ALLM (Auto Low Latency Mode), G-Sync, FreeSync, and HDR Dolby Vision gameplay, ensuring an exceptional gaming experience.