Samsung S90F vs LG G4: Which Premium OLED TV Deserves Your Money?

The Evolution of OLED Television Technology

When you're investing in a premium television experience, the difference between good and exceptional often comes down to the details. OLED (Organic Light Emitting Diode) technology has revolutionized home viewing by offering perfect blacks and infinite contrast—something traditional LED TVs simply cannot achieve. Unlike standard LED TVs that use a backlight, each pixel in an OLED display emits its own light and can turn completely off, creating those inky blacks that make movies look spectacular.

In this high-end segment, the Samsung 65" S90F OLED 4K Vision AI Smart TV and LG 65" G4 Series OLED evo 4K UHD Smart TV represent the pinnacle of what's possible in home display technology in 2025. Both offer stunning picture quality, but they take different approaches to achieving visual excellence.

The LG G4 was released in early 2024, while Samsung's S90F represents their 2025 lineup. This one-year gap means technological refinements and performance enhancements that could impact your viewing experience for years to come. Let's explore what makes these premium OLED TVs special and, more importantly, which one might be right for your specific needs and budget.

Core Technology: Understanding OLED Panel Differences

Panel Technology Deep Dive

The fundamental technology behind these TVs differs in important ways that affect performance:

The Samsung S90F ($2,499.99) is subject to what enthusiasts call a "panel lottery." Some units ship with Samsung's advanced QD-OLED (Quantum Dot OLED) panels, while others use LG's W-OLED panels. QD-OLED combines quantum dot color technology with OLED's self-emissive pixels, typically resulting in brighter highlights and more vibrant colors. However, the lack of transparency about which panel you'll receive has frustrated many buyers, especially considering the premium price.

The LG G4 ($1,897.14) uses LG's latest OLED evo panel with MLA (Micro Lens Array) technology. MLA is a fascinating innovation that places microscopic lenses over each pixel to direct more light forward rather than allowing it to disperse in all directions. This clever engineering allows the panel to achieve higher brightness without consuming more power or reducing the panel's lifespan.

In practical terms, if you get a Samsung S90F with the QD-OLED panel, you'll enjoy exceptionally vibrant colors and brilliant HDR highlights. The LG G4, meanwhile, delivers excellent brightness with better consistency and renowned color accuracy that professionals trust.

Processing Power Behind the Picture

Both TVs employ sophisticated processors that handle everything from upscaling lower-resolution content to optimizing picture settings in real-time:

The Samsung S90F features the NQ4 AI Gen3 Processor, which analyzes content using deep learning algorithms trained on millions of images. This processor excels at reducing noise in compressed streaming content and enhancing details in dark scenes. The processor constantly adjusts contrast, sharpness, and color to optimize whatever you're watching.

LG's G4 utilizes the α11 AI Processor 4K, which represents a substantial upgrade over previous generations with 70% improved graphic performance and 30% faster processing speeds. This translates to smoother motion handling and more precise upscaling of non-4K content.

Both processors are exceptional, but Samsung has typically focused more on enhancing perceived detail and "pop," while LG's processing tends to preserve the director's intent with less aggressive enhancement.

Picture Performance: The Viewing Experience

Brightness and Contrast: The Hallmarks of Premium Display

Both TVs deliver exceptional contrast—the infinite black levels are a fundamental benefit of OLED technology. The differences emerge in brightness handling:

The Samsung S90F (with QD-OLED) reaches higher peak brightness in small highlights, making explosions, reflections on water, and other bright elements in HDR content particularly impactful. In testing, QD-OLED panels have shown their ability to maintain this brightness even when larger portions of the screen are bright, which is impressive for OLED technology.

The LG G4 with its MLA technology offers excellent brightness that's more consistent across different content types. It particularly excels with standard dynamic range (SDR) content, which still comprises most of what people watch day-to-day. The MLA technology allows the G4 to achieve brightness levels that were impossible for previous OLED generations.

For most living rooms with some ambient light, both TVs perform admirably. In very bright rooms with lots of windows, neither OLED will match the raw brightness of mini-LED TVs, but the Samsung S90F might have a slight advantage if you receive the QD-OLED panel.

Color Reproduction: Accuracy vs. Vibrancy

Color performance represents perhaps the most philosophical difference between these two flagship TVs:

Samsung's approach with the S90F (assuming the QD-OLED panel) emphasizes a wider color gamut and more saturated colors. This creates a more visually striking image with colors that seem to leap off the screen, especially in nature documentaries and animated content. The quantum dot layer allows the TV to display a broader range of colors, particularly in the red and green portions of the spectrum.

LG's G4 takes a more accurate approach, delivering colors that more precisely match what content creators intended. While the colors might not appear quite as vibrant as Samsung's, they're typically more faithful to the source material. For film purists and those who value accuracy over impact, this is a significant advantage.

Motion Handling: Keeping Action Smooth

Motion performance is critical for both sports fans and gamers:

The Samsung S90F features Motion Xcelerator 144Hz technology, which provides excellent motion clarity for fast-moving content. Samsung has improved their motion processing algorithms to reduce the "soap opera effect" (where film content looks unnaturally smooth) while still keeping sports and gaming content fluid.

LG's G4 incorporates OLED Motion technology, which has been refined over several generations. LG's expertise in motion processing shows in how naturally it handles 24fps movies while still providing crystal clear sports action.

For gaming, both TVs support high refresh rates up to 144Hz, meaning they can display up to 144 frames per second when connected to capable gaming PCs, reducing motion blur and improving responsiveness.

Gaming Features: Next-Level Interactive Entertainment

Gaming Performance and Technologies

Both TVs are outstanding gaming displays that support the latest features demanded by serious gamers:

The Samsung S90F and LG G4 both feature four HDMI 2.1 ports that support 4K resolution at 120Hz (and up to 144Hz in certain modes). HDMI 2.1 is the latest standard that enables these high refresh rates along with other gaming-focused features.

Both TVs include VRR (Variable Refresh Rate), which synchronizes the TV's refresh rate with your gaming device's frame rate output. This eliminates screen tearing (where the image appears split horizontally) and stuttering during gameplay. They also feature ALLM (Auto Low Latency Mode), which automatically switches to the lowest-latency game mode when it detects you're playing a game.

Where they differ is in certified compatibility: LG's G4 boasts both NVIDIA G-Sync and AMD FreeSync Premium certifications, ensuring seamless performance with a wide range of gaming PCs. Samsung's S90F works well with VRR-capable devices but lacks these specific certifications.

Input Lag and Response Time

Both TVs offer exceptionally low input lag (the delay between pressing a button and seeing the result on screen):

The LG G4 achieves an impressive 0.1ms response time, which is virtually instantaneous. This makes it ideal for competitive gaming where split-second reactions matter.

Samsung's S90F also delivers excellent response times and low input lag, though specific measurements vary by mode and content.

For casual gamers, both TVs will feel incredibly responsive. For competitive gamers, particularly in fast-paced shooters or fighting games, the LG G4's certified compatibility with gaming standards might provide more consistent performance.

Smart Features and User Experience

Operating Systems and User Interface

The software experience differs significantly between these two premium TVs:

Samsung's S90F runs on the latest version of Tizen OS with Vision AI enhancements. Vision AI uses machine learning to analyze what's happening on screen and optimize settings accordingly. The interface is tile-based with an emphasis on content discovery. Samsung has continuously refined Tizen to make it more intuitive, though some users find it increasingly cluttered with recommended content.

LG's G4 operates on webOS 24, the latest iteration of LG's smart platform. WebOS uses a card-based system that appears along the bottom of the screen, allowing you to browse options without completely leaving what you're watching. LG has simplified webOS over the years while adding powerful features like enhanced search capabilities.

Both platforms support all major streaming services including Netflix, Amazon Prime Video, Disney+, and others. The real difference comes down to navigation preference and ecosystem integration.

Voice Control and Smart Home Integration

Voice assistants have become central to the smart TV experience:

Samsung's S90F features an enhanced Bixby voice assistant that can process multiple commands simultaneously. While Bixby has improved significantly, it still lacks the widespread adoption of competing assistants. The S90F also works with Amazon Alexa and Google Assistant through compatible external devices.

LG's G4 takes a more open approach, working directly with both Google Assistant and Amazon Alexa without requiring additional hardware. This flexibility makes it easier to integrate the TV into existing smart home ecosystems.

Design and Build Quality

Aesthetics and Physical Presence

Premium TVs need to look the part, even when turned off:

The Samsung S90F features a sleek, minimalist design with an ultra-thin profile. The stand is sturdy and elegant, though the TV looks its best when wall-mounted. Samsung has focused on creating a "floating" appearance with virtually no visible bezel around the screen.

The LG G4 employs a distinctive picture-frame design explicitly optimized for wall mounting. When mounted, it sits flush against the wall with no gap, creating a clean, gallery-like appearance. For those who prefer a stand, LG offers one separately, though the design philosophy clearly favors wall mounting.

Both TVs are exceptionally well-built using premium materials, with no flex or creaking in the chassis. The Samsung has a slightly more conventional design that works well in various setups, while the LG makes a stronger design statement but requires more commitment to a specific installation approach.

Value and Pricing: The Bottom Line

Investment Analysis

The pricing difference between these TVs is substantial enough to factor prominently in purchasing decisions:

At approximately $2,500, the Samsung S90F commands a premium of about $600 over the LG G4, which retails for around $1,900. This price difference raises important questions about value—is the Samsung worth the additional investment?

If you're lucky enough to receive a Samsung with the QD-OLED panel, the extra cost might be justified if you prioritize the most vibrant colors and brightest highlights possible. However, the "panel lottery" introduces uncertainty that undermines the value proposition. You're essentially paying a premium without guarantees about which technology you'll receive.

The LG G4, meanwhile, offers consistent, known performance at a significantly lower price point. Its combination of excellent picture quality, comprehensive gaming features, and mature smart platform makes it an outstanding value in the premium segment.

Warranty Considerations

LG offers a distinct advantage in warranty coverage:

The LG G4 comes with a 1-year parts warranty but extends to 5 years for the panel itself—the most expensive component. This longer coverage period provides valuable peace of mind for a significant investment.

Samsung typically offers a standard warranty without the extended panel coverage, though specific terms may vary by region.

Home Theater Consideration

For dedicated home theater environments, both TVs excel but with different strengths:

In a controlled lighting environment like a home theater, OLED technology truly shines. The perfect blacks create an immersive cinematic experience that LED TVs struggle to match.

The Samsung S90F (with QD-OLED) might have a slight advantage for high-impact HDR movie watching, where its brighter highlights and more vibrant colors create spectacular explosions, sunsets, and other vivid scenes.

The LG G4 excels with its accurate color reproduction, making it the choice for purists who want to see exactly what the director intended. Its Filmmaker Mode preserves the original aspect ratios, colors, and frame rates of movies without unnecessary processing.

For the ultimate home theater setup, the LG G4's superior color accuracy and Dolby Vision support (which Samsung lacks) gives it an edge for serious film enthusiasts, while the Samsung S90F might create more "wow" moments for casual movie nights.

How to Decide: Making Your Choice

After examining both TVs in detail, here's how to make your decision:

Choose the Samsung 65" S90F OLED if:

• You want the most vibrant, colorful HDR experience possible (assuming you get the QD-OLED panel)
• You prefer Samsung's ecosystem and Tizen interface
• You're willing to pay a premium and take a chance on the panel lottery
• You value slightly higher peak brightness for bright room viewing

Choose the LG 65" G4 Series OLED evo if:

• You want excellent performance with guaranteed panel technology
• You prioritize color accuracy and filmmaker intent
• You're a serious gamer who values G-Sync and FreeSync certification
• You appreciate the significant cost savings without major performance compromises
• You value the extended 5-year panel warranty

For most viewers, the LG G4 represents the better value proposition. It delivers nearly equivalent performance to the Samsung at a significantly lower price, with no uncertainty about what panel technology you'll receive. The extended warranty further strengthens its position as the more prudent choice.

However, if you're seeking the absolute bleeding edge of OLED technology and are willing to pay for it—and potentially deal with the panel lottery—the Samsung S90F could deliver the most spectacular viewing experience currently available in a consumer OLED TV.

Ultimately, both the Samsung S90F and LG G4 represent the pinnacle of current OLED technology, and either would provide an exceptional viewing experience that will transform your entertainment for years to come. Your specific preferences for color performance, smart features, and value will determine which is the right choice for your living room.

Samsung 65" S90F OLED 4K Vision AI Smart TV 2025 Deals and Prices

LG 65" G4 Series OLED evo 4K UHD Smart TV Deals and Prices