Compare LG G6 vs Samsung S90H

Across movies, sports, games, SDR, and HDR, the G6 delivers a brilliant, cinematic image with deep blacks, rich color, and strong detail. Most criticism centers on firmware-specific flaws rather than the core panel.

Picture quality is a major strength, with deep OLED contrast, rich color and crisp detail repeatedly standing out. The matte screen and some default modes can soften or exaggerate the image, but the core panel performance remains highly regarded.

Built-in sound is fuller and bassier than the G5 and adequate for everyday TV, but it falls well short of the picture quality and usually deserves a soundbar.

Built-in sound is better than expected for such a slim OLED, especially in Amplify mode. It still cannot match a dedicated soundbar for scale and low-end weight.

Most modes are well balanced after proper setup, but some samples show green, pink, or warm magenta tint, especially off-axis or in selected scenes.

White balance is strong in accurate modes, with only small residual errors. Default Standard settings can skew much cooler than the mastering target.

Audio can spread beyond the screen with decent directionality, yet it often remains contained and lacks the scale of stronger built-in systems.

Amplify mode opens the presentation noticeably, creating a wider and more involving soundstage than the default setting.

The tandem OLED implementation delivers the cinematic blacks, depth, and color that make OLED especially compelling for movies.

OLED remains central to the S90H’s appeal, delivering self-emissive blacks, strong contrast and fast gaming response. The move away from QD-OLED in some sizes is the main tradeoff.

AI Sound Pro adds noticeably more bass punch and warmth than the G5. The low end can still turn soft, tubby, or underpowered in demanding movie soundtracks.

Bass has some useful weight, but deep low frequencies remain limited and a soundbar adds substantially more impact.

The G6 reaches exceptional OLED peaks, often around 2500–3100 nits and higher in tiny highlights. Measurements vary by mode and firmware, but brightness is a major strength.

Peak brightness is strong for a midrange OLED and gives HDR highlights real impact, though results vary by size and it remains below Samsung’s flagship models.

Full-screen HDR brightness around the mid-400-nit range is a meaningful OLED upgrade, improving sports, bright scenes, and room-light performance.

Full-screen brightness falls as OLED protection engages, but the sustained result is still described as competitive for the class.

Dithering and dark-scene noise are greatly reduced, and DVD grain is usually preserved. Compressed HDR can still reveal flicker or temporal noise.

Noise handling is restrained rather than aggressive, reducing source flaws without wiping out film grain or fine texture.

Filmmaker Mode can look natural and reference-like, especially after firmware fixes. Sample-to-sample tint and changing HDR tracking caused some inconsistent early results.

Accuracy is strongest in Filmmaker-style settings, where skin tones, grayscale and source intent look convincing. More aggressive presets can trade that fidelity for extra brightness and punch.

Color is usually natural, vivid, and highly accurate out of the box, particularly in Filmmaker Mode. Some samples showed green tint, warm magenta, or firmware-related saturation errors.

Color can look highly natural and accurate in the better picture modes, especially Filmmaker Mode. Standard and AI-heavy modes can push skin tones or whites too cool or warm.

The combination of bright highlights, deep blacks, broad color, and fine detail creates spectacular HDR. Firmware and Dolby Vision inconsistencies prevent completely uniform results.

HDR is consistently praised for impactful highlights, deep blacks and rich color. The strongest results come from better picture modes rather than the most aggressive defaults.

Small highlights are intensely bright and full-screen HDR output is substantially stronger than before. Some firmware versions undertracked real scenes despite excellent test-pattern results.

HDR brightness is strong enough to make highlights pop and handle lit rooms well, though it trails the S95H and can vary by screen size.

Fast response, extremely low input lag, four full-bandwidth HDMI ports, and rich HDR make the G6 an elite gaming TV across consoles and PCs.

Gaming performance is a standout, combining 165Hz support, VRR, low lag and excellent OLED contrast across consoles and PCs.

Perfect OLED blacks beside intense highlights create exceptional depth and punch. This remains a standout advantage in both dark and bright rooms.

OLED contrast is a standout, pairing near-perfect blacks with bright highlights for a deep, dimensional image in movies and games.

High full-screen brightness and excellent anti-reflection treatment make this one of the strongest OLEDs for bright living rooms without sacrificing deep blacks.

Bright-room performance is unusually strong for OLED because reflections are suppressed and brightness remains useful even with windows or overhead lights present.

Inky blacks, precise highlights, and cinematic depth make the G6 superb for lights-off movie viewing.

In evening and dark-room viewing, the OLED panel delivers the deep blacks, contrast and depth that home-cinema buyers expect.

Fast sports and movie movement is generally excellent. Default processing can look heavy-handed, but better-tuned modes restore natural motion.

Motion is strong once settings are dialed in, with clean fast action and few artifacts. Default or automatic smoothing can be less natural.

Measured latency is consistently extremely low, often below one frame and dropping further at 120Hz or 165Hz.

Input lag around the 9ms range at 4K/60Hz is repeatedly described as exceptionally responsive for gaming.

The RGWB subpixel arrangement makes desktop text noticeably clearer, with less fringing and blur than the G5.

Text rendering on tandem-panel sizes has drawn complaints about reduced sharpness, a concern most relevant to close-up PC or monitor use.

The flat Gallery chassis and included zero-gap or slim mounts create an especially clean, picture-like wall installation.

The thin panel looks wall-mount friendly, but the thicker rear electronics section can leave a visible gap at the edges.

Rich, bright color is one of the G6’s defining strengths, with bold highlights retaining impressive saturation and realism.

WOLED versions lose some high-brightness color intensity compared with QD-OLED, most noticeably in demanding wide-gamut HDR material.

The four-stack tandem OLED panel combines premium blacks, high brightness, and richly realistic color.

The OLED panel delivers excellent fundamentals, but panel configuration matters: WOLED versions give up some color volume versus QD-OLED variants while retaining strong brightness and contrast.

The panel covers virtually all DCI-P3 and a strong portion of Rec.2020, producing broad HDR color. A few comparisons found slightly less high-brightness coverage than rival QD-OLEDs.

The S90H covers mainstream DCI-P3 material very well, but WOLED samples show narrower BT.2020 coverage and less extreme color punch than QD-OLED alternatives.

Rear channels and clips can keep wiring tidy, but the permanently attached power cord and cable-length requirements complicate concealed installations.

Cable management is a minor weakness, with reviewers wishing for more built-in routing and cleanup options.

Cinematic Movement controls panning judder effectively without strongly exaggerating the soap-opera effect, though some smoothing is needed.

Judder can show up at default settings, but modest custom adjustments clear it up without forcing an overly smoothed look.

AI Sound Pro can produce sufficient or improved loudness, yet other tests found the speakers too quiet until pushed near their upper range.

The speakers can lose composure when pushed hard, so demanding scenes at high volume expose the limits of the slim chassis.

Cinematic Movement can add useful smoothness without obvious artifacts, while stronger settings may hesitate or create an artificial look.

Interpolation is useful when kept moderate, but stronger or automatic settings can introduce obvious soap-opera effect and unnatural motion.

Dark-scene texture is often excellent and preserved without raising blacks. A few firmware versions and challenging scenes showed mild crush or required a small Near Black adjustment.

Shadow detail is the main dark-scene weakness: some presets bury information near black, although picture controls can recover part of it.

The Magic Remote’s pointer can be genuinely useful, but many versions feel light, plasticky, and unworthy of an expensive flagship.

The solar/USB-C remote is light and convenient, but minimalist controls are not universally loved.

Game Optimizer is feature-rich and responsive, but firmware-dependent HGiG, color, and high-refresh accuracy issues keep it from being flawless.

Game Mode stays highly responsive and preserves strong picture quality, making it suitable for competitive and cinematic games alike.

The revised layout is cleaner for some users, yet missing backlighting, charging, and a straightforward source button keeps it from feeling fully premium.

The compact layout omits useful dedicated controls such as an input button, pushing more actions into onscreen menus.

Good DVDs and HD sources can look crisp and detailed, but heavily compressed broadcasts expose ringing, artifacts, and inconsistent processing.

Older and lower-resolution sources hold up surprisingly well, with processing that preserves texture while avoiding heavy-handed cleanup.

AI Search can be convenient for simple requests, but broader queries may return slow, inaccurate, or irrelevant results.

Search is uneven: AI-enhanced search can find content, but the lack of a straightforward app-store search can make simple tasks frustrating.

Near-instant OLED response makes 24p stutter visible, especially on larger screens; light TruMotion can smooth it at the risk of some soap-opera effect.

OLED stutter can appear in some motion settings and slow pans, though several impressions describe it as subtle rather than broadly distracting.

Speech is generally clear, natural, and separated from background effects, though the warmer tuning can make some male voices sound slightly bass-heavy.

Dialogue stays clear and naturally placed in most scenes, with voice-enhancement processing available when room noise competes.

AI Concierge can surface useful suggestions, but several tests found the recommendations too limited or unremarkable to become a regular feature.

Personalized suggestions can work surprisingly well after some use, although recommendation features are not central to the TV’s appeal.

Off-axis viewing is generally excellent, though extreme seats can reveal a green or pink shift on white objects.

Off-axis viewing is excellent, with color and contrast holding up well across wide seating positions.

The Alpha 11 Gen 3 processor improves gradation, clarity, and detail, but low-quality sources can trigger ringing or aggressive smoothing that erases fine texture.

Samsung’s processor is capable and often excellent at detail, upscaling and cleanup, but some AI modes can over-brighten or cool the image and are better disabled for accuracy.

Pushing the volume introduces slight distortion, and action scenes can sound sluggish rather than clean and forceful.

Low frequencies can introduce a little distortion when pushed, particularly as the built-in speakers approach their bass limits.

DVD and HD material often gains crisp texture and careful detail, especially from cleaner sources. The weakest compressed broadcasts can still expose overprocessing.

Upscaling is one of the S90H’s clearest strengths, making HD and even DVD material look cleaner and more detailed without excessive artificial sharpening.

Uniformity is very good overall, with clean gray fields and strong sports performance. One sample showed minor edge tint and faint dark vertical streaks.

Uniformity is very clean for an OLED, with no meaningful hot spots or distracting near-black inconsistencies reported on tested samples.

PC gaming reaches up to 165Hz, while consoles are exceptionally well served at 120Hz. The maximum 165Hz mode can trade some gradation and chroma quality for speed.

High-frame-rate gaming is a core strength, especially on PC where the panel can run up to 165Hz.

Filmmaker Mode and Calman support can deliver reference-grade accuracy with extensive adjustment. One firmware version’s broken HDR color controls created a notable exception.

Phone-assisted Smart Calibration is convenient for quick tuning, though it is not a substitute for a full professional calibration.

The new processing pipeline produces exceptionally smooth HDR10 gradients and greatly reduces the G5’s banding. Very dark compressed material and some Dolby Vision scenes can still expose artifacts.

Banding is kept to a minimum in both test material and real content, helping color transitions look smooth.

Reflections are greatly reduced without using a matte finish, so the screen keeps glossy depth and strong black retention. A faint magenta tint can appear in reflected light.

Reflection control is exceptional: direct and indirect light is heavily diffused, making the screen unusually usable in bright rooms.

Streaming apps being locked behind an LG account is one of webOS 26’s most disliked changes, with added concern over required data consent.

Using built-in streaming apps requires a Samsung account, and the associated permissions/setup flow can feel intrusive or tedious.

Game Optimizer provides quick, customizable access to frame rate, VRR status, genre presets, black level, HGiG, and latency controls.

Samsung’s Game Bar is particularly useful, putting refresh, HDR, genre and aiming controls within quick reach during play.

Sports and games look smooth, responsive, and largely free of ghosting or obvious artifacts.

Fast gaming and sports motion stays clear, helped by OLED response and high refresh rates.

Complex color transitions are exceptionally smooth and among the best seen on OLED. Only heavily compressed or Dolby Vision material occasionally reveals residual issues.

Gradients are handled cleanly with little visible banding, including difficult skies, dark scenes and streamed material.

Blacks are consistently deep, rich, and precise, even with room lights on. A few tests found mild black crush in the darkest HDR scenes.

Black levels are excellent in dark rooms and create the depth expected from OLED. Strong ambient light can lift blacks slightly because of the matte anti-glare treatment.

The glossy anti-reflection coating suppresses glare extremely well while preserving image depth, contrast, and saturated color.

The matte Glare Free coating is one of the S90H’s defining strengths, dramatically reducing glare. The tradeoff is slightly raised blacks or reduced perceived crispness in some conditions.

Large banner ads occupy a substantial portion of the webOS home screen. Some promotions can be disabled, but the space cannot be removed entirely.

Ad behavior is inconsistent across impressions: one interface showed no top banner, while others criticized Samsung TV Plus autoplay and persistent promotional content.

FreeSync, G-Sync, and HDMI VRR work smoothly up to very high frame rates, with only the usual OLED flicker possible in some static game scenes.

VRR is viewed as a strong gaming feature, smoothing frame-rate changes across supported consoles and PCs.

The sturdy, height-adjustable pedestal works well with soundbars where included. Several wall-mount variants omit a stand entirely, creating extra cost for tabletop users.

The stand is functional and can be sturdy once assembled, but its plastic cover, feel and assembly quality draw mixed reactions.

Per-pixel OLED lighting eliminates the halos and bloom associated with backlit TVs, preserving clean high-contrast edges.

Bright objects stay clean against dark backgrounds, with OLED’s pixel-level control eliminating the blooming seen on many backlit TVs.

The tested panel showed no visible dirty-screen effect on full-field gray slides.

Test patterns showed no distracting dirty-screen effect, vertical banding or vignetting on the evaluated sample.

Nvidia G-Sync compatibility combines with high refresh rates and low latency for excellent PC gaming.

Official G-SYNC compatibility broadens the S90H’s appeal to Nvidia PC gamers and complements its 165Hz panel.

All four HDMI ports support modern high-bandwidth gaming, avoiding the two-port limitation found on many rivals.

All four HDMI ports are full-bandwidth HDMI 2.1, a strong advantage for multi-device gaming setups.

Four capable HDMI inputs provide ample room for consoles, PCs, and external media devices.

Four HDMI inputs give the S90H enough wired flexibility for multiple consoles, players and audio gear.

The native 120Hz panel extends to 165Hz with compatible PCs, providing excellent flexibility for gaming.

The 165Hz ceiling is a major gaming upgrade for capable PCs and is repeatedly praised as a premium feature.

OLED pixel response is nearly instantaneous, producing crisp motion and exceptionally responsive gaming.

Pixel response is extremely fast, giving fast-paced games an immediate, clean feel with little blur.

Classic screen mirroring joins AirPlay and Chromecast for flexible wireless display sharing.

Screen mirroring through AirPlay or Miracast is described as quick and easy to use.

The heavy metal pedestal is consistently described as reassuringly sturdy.

Once installed, the feet hold the TV securely and provide a stable base.

A skinny, flat base leaves room for a soundbar without dominating the furniture.

Closely spaced feet make the S90H easier to place on narrower furniture than many large OLED rivals.

Opening streaming apps can require consent to transmit data outside the European Economic Area, which privacy-conscious users may dislike.

Local, privacy-focused AI processing drew praise, and privacy choices are accessible in the interface.

webOS offers an excellent app catalog covering major streaming services plus niche platforms such as Crunchyroll and Hidive.

Major apps are broadly covered, though regional gaps such as iPlayer at review time keep the selection from being flawless.

Major and niche streaming services are widely available and work correctly once the required LG account is active.

Core streaming services are well supported and run smoothly, with only isolated regional omissions noted.

Dynamic tone mapping can reveal shadows and add punch, but several tests found it overbrightened, washed out, or reduced highlight and color nuance. Accuracy is usually best with it disabled.

Tone mapping generally preserves bright highlights and dark detail well. Active mapping can add useful brightness or shadow visibility, though stronger settings may sacrifice some fine highlight detail.

webOS feels swift and snappy in most use, with only occasional hesitation in deeper settings.

The updated Tizen interface feels quick, with fast app launches and fluid navigation through major sections.

The ThinQ app works well as a quick remote, and external streaming devices perform smoothly with the TV.

Apps open quickly and the interface shows less lag than older Samsung software.

webOS is usually intuitive and quick, especially with the pointer remote, though occasional settings-menu sluggishness remains.

Menus and settings generally respond quickly, making inputs, apps and gaming controls easy to reach.

Matter support and compatibility with Thread, Zigbee, Homey, and connected devices make the G6 a capable smart-home hub.

SmartThings integration is useful for connected-home control and works especially smoothly inside Samsung’s ecosystem.

Voice ID and queries have potential, but slow responses, limited language support, and inconsistent usefulness weaken the experience.

Voice control handles basic requests but can be inconsistent, particularly when asked to launch specific content in a named service.

webOS 26 remains a fast, customizable, app-rich platform with useful Quick Cards and settings. Ads, account requirements, and uneven AI features are its main drawbacks.

Tizen is faster and better organized than prior versions, but opinions split over clutter, ads and Samsung-centric behavior.

Dolby Vision can look excellent and improved substantially after firmware updates, but early units showed serious near-black artifacts. Dolby Vision 2 is also absent.

Samsung’s lack of Dolby Vision is the most repeated format complaint. Some reviewers consider it minor, especially for console gaming, while others see it as a reason to prefer LG or Sony.

Traditional TV functions include useful recording and time-shifting, but the US tuner remains ATSC 1.0 rather than the newer ATSC 3.0 standard.

The tuner is functional for standard broadcasts but lacks ATSC 3.0/NextGen TV, a notable omission at this price.

Performance is genuinely flagship-level, but launch pricing is difficult to justify while the discounted G5 and cheaper C6/C6H deliver much of the experience.

Value is generally strong when the S90H is discounted, especially relative to the S95H, but cheaper S85H/S90F and LG alternatives can be more compelling if glare control is not essential.

Stand or wall-mount installation is generally straightforward, although one 5GHz Wi-Fi issue made initial software setup painfully slow.

Physical assembly and SmartThings-assisted setup can be very easy, but mandatory-account and permission screens make the software setup more frustrating for some.

DTS decoding and passthrough are completely absent, a recurring drawback for Blu-ray collections and external audio setups.

The lack of DTS is a drawback for disc-based home theater, forcing DTS material to fall back to PCM.

Dolby Atmos FlexConnect is a promising way to add wireless surround speakers and use the TV within a larger audio system.

Dolby Atmos playback contributes to a surprisingly capable built-in audio presentation and works with the TV’s wider Samsung audio ecosystem.

GeForce Now can reach 4K/120Hz, and the portal includes several major cloud services. Low-latency controller support makes the feature unusually capable for a TV.

Gaming Hub is a strong smart-platform feature, bringing Xbox, GeForce Now, Luna and controller support directly to the TV.

Four capable HDMI inputs and a broad gaming feature set make the G6 a first-rate 4K gaming display.

The S90H is positioned as a high-end 4K gaming display, with enough bandwidth and refresh capability for modern consoles and powerful PCs.

Apple AirPlay 2 works alongside Google Cast to make wireless sharing flexible across device ecosystems.

AirPlay works as part of the TV’s straightforward casting options, making Apple-device sharing quick and easy.

Built-in Google Cast and AirPlay provide broad, convenient wireless sharing.

Casting is easy from phones and computers, with support that covers both Apple and Miracast-style workflows.

eARC is available for connecting a soundbar or receiver, though it cannot pass DTS.

The eARC connection makes it straightforward to send high-quality audio to a soundbar or receiver.

AMD FreeSync support is consistently praised as part of the G6’s complete adaptive-sync package.

FreeSync support is a clear plus for AMD-based gaming, helping deliver stable, tear-reduced play at variable frame rates.

Full-bandwidth HDMI 2.1 across every input supports the G6’s comprehensive gaming feature set.

Full-bandwidth HDMI 2.1 connectivity is a strong point, supporting modern high-refresh gaming features without forcing buyers to choose a single premium port.

The metal frame and substantial construction feel reassuringly sturdy and appropriately premium.

The panel and chassis generally feel solid and premium, though some stand assembly experiences feel flimsier than the TV itself.

The tandem panel reaches up to 83 inches, giving big-screen buyers access to the flagship picture technology.

A broad 42- to 83-inch range gives the series options for desks, bedrooms and large living rooms, though panel behavior can differ by size.

The slim, understated Gallery design looks premium and especially elegant when flush-mounted. Its familiar appearance has changed little, which some consider overdue for a refresh.

The slim, understated OLED design is widely liked and keeps attention on the screen rather than decorative framing.

The almost borderless screen creates a clean, floating-picture effect that suits the Gallery design.

Bezels are thin enough to disappear during viewing, reinforcing the clean all-screen look.

The hardware is widely regarded as excellent, but launch firmware varied across units and introduced inconsistent HDR, Dolby Vision, and processing behavior. Later updates fixed many of those problems.

Console gaming is exceptionally well covered at 4K/120Hz, including Dolby Vision on compatible systems. Image fidelity is generally strongest at 120Hz rather than pushing the optional 165Hz mode.

HDR gaming can run at 4K/144Hz on compatible hardware, giving high-end PC players plenty of headroom.

Google Cast is built in and works as part of a versatile wireless streaming setup.

HDR10+ remains unsupported, leaving Dolby Vision, HDR10, and HLG as the main formats.

The S90H handles HDR10-family content well, but the continued absence of Dolby Vision remains a meaningful format limitation for some movie viewers.

A five-year panel warranty on G6 models adds valuable protection beyond LG’s standard one-year coverage.

Accessibility options are extensive and easy to reach, while eye-care features can reduce fatigue during long viewing sessions.

Ambient and Daily Board features are clever but can become annoying when they wake or surface information more often than wanted.

ALLM is part of the G6’s complete gaming toolkit and helps consoles switch into responsive play automatically.

The second-generation tandem panel improves efficiency while also increasing brightness and color performance.

Overall sentiment is strongly positive: the S90H is repeatedly described as a well-rounded OLED with standout gaming and bright-room performance despite a handful of platform and format compromises.

Slim construction, relatively low weight and smaller size options make the S90H flexible for bedrooms, desks and secondary gaming setups.

Pointer controls, the scroll wheel, and navigation pad make webOS fast to operate, although some buttons require excessive pressure.

There are three USB ports, but limiting all of them to slow USB 2.0 is disappointing on a flagship.

VRR remains smooth and tear-free up to 4K HDR 165Hz, giving PCs a very wide operating range.

DTS passthrough over eARC is missing, forcing disc users to route compatible players directly through an external audio system.

Per-pixel OLED dimming precisely separates stars and highlights from black backgrounds without blooming.

Ultra-low-latency Bluetooth controller support strengthens the G6’s cloud-gaming credentials.

Firmware has already corrected major HDR and Dolby Vision problems, and LG promises years of webOS updates. The messy launch showed how dependent performance can be on software version.

Voice control and AI search offer broad device and content commands, and some consider LG’s assistant among the best for TV control.

Wireless results vary by region and unit: Wi-Fi 6E is welcome where included, while Wi-Fi 5 and a reported 5GHz setup failure feel like regressions.

The small power connector is well suited to cleaner, lower-profile wall installations.