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Samsung S90H OLED TV vs LG C5 55-Inch OLED TV

Both are 55-inch 4K OLEDs with near-infinite contrast, wide viewing angles and anti-glare coatings, so picture depth is close. The Samsung S90H leans toward gaming and commercial use: a 165Hz panel, FreeSync Premium Pro and G-Sync certification, plus Knox security and SmartThings hub features. The LG C5 is the better all-round home TV: Dolby Vision support, the Alpha 9 Gen8 processor, webOS 25 with 300+ free channels, and four HDMI ports. Owners rate the C5 well, and LG's C-series has a long track record for movie and streaming use.

  • Choose the Samsung S90H if you want the highest refresh rate for PC and console gaming and value Samsung's security and smart-home integration.
  • Choose the LG C5 if you mostly watch movies and streaming and want Dolby Vision, a polished smart platform and four HDMI inputs.

Prices

  • Samsung S90H OLED TV: $1,047.99 at eBay (last seen Nov 9)
  • LG C5 55-Inch OLED TV: $949.95 at Walmart (last seen Nov 9)
  • Difference: the LG C5 55-Inch OLED TV is $98.04 cheaper than the Samsung S90H OLED TV at the latest prices (Nov 9)
Samsung
Samsung 55-Inch S90H OLED

Samsung S90H OLED TV

Samsung 55-Inch S90H OLED

$1,047.99at eBayChecked 21 h ago
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Pros
  • 165Hz panel is the fastest of the two for gaming
  • Certified for both FreeSync Premium Pro and G-Sync
  • Glare-Free OLED coating cuts reflections in bright rooms
  • Knox security and SmartThings Hub suit managed and smart-home setups
Cons
  • No Dolby Vision, so Dolby Vision discs and streams fall back to HDR10
  • HDMI port count is not stated, so check inputs before buying
  • Tuned and marketed for commercial AV, not living rooms
LG
LG OLED55C5 55-Inch OLED evo AI 4K Smart TV (2025)

LG C5 55-Inch OLED TV

LG OLED55C5 55-Inch OLED evo AI 4K Smart TV (2025)

4.4(142 ratings)
$949.95at WalmartChecked 11 h ago
See all prices and details
Visit Walmart
Pros
  • Dolby Vision plus Dolby Atmos for movie night
  • Alpha 9 Gen8 processor handles upscaling and tone mapping well
  • webOS 25 is fast and includes 300+ free channels
  • Four HDMI ports cover a console, soundbar and two players
Cons
  • 144Hz refresh is lower than the Samsung's 165Hz
  • No G-Sync certification listed
  • Rated 4.4 out of 5, so a minority of owners report issues

What separates them

Samsung S90H OLED TVLG C5 55-Inch OLED TV
Peak refresh rate165Hz with Motion Xcelerator144Hz
HDR formatsHDR10+ only; no Dolby VisionDolby Vision and HDR10
Variable refresh rateFreeSync Premium Pro and G-Sync certifiedVRR support, HDMI 2.1
ProcessorNQ4 AI Gen3, 128 neural networksAlpha 9 Gen8 AI processor
Smart platformOne UI Tizen with Knox security and SmartThings HubwebOS 25 with 300+ free LG Channels
HDMI inputsNot specified in the listing4 HDMI ports
AudioDolby AtmosDolby Atmos
PositioningCommercial and hospitality AV focusMainstream home entertainment

Price history

$1,259.95$919.99
Nov 1Nov 10
  • Samsung S90H OLED TV: lowest $1,197.99 on Nov 9 at Best Buy; $1,197.99 on Nov 10.
  • LG C5 55-Inch OLED TV: lowest $919.99 on Nov 8 at Amazon; $949.95 on Nov 10.

Prices at every store

Samsung S90H OLED TV

  • Best BuyNew

    In stock

    $1,197.99Free shippingChecked 11 h ago
    Visit Best Buy
  • NeweggNew

    In stock

    $1,197.99Free shippingChecked 11 h ago
    Visit Newegg
  • Abt ElectronicsNew

    In stock

    $1,197.99+ $50.10 shippingChecked 11 h ago
    Visit Abt Electronics
  • eBayNew

    Availability unknownSold by buydig (99.5% positive, 681,200 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $1,047.99Free shippingChecked 21 h ago
    Visit eBay

Store links may earn us a commission. Some prices via Klarna.

All 11 stores and price history →

LG C5 55-Inch OLED TV

  • WalmartNew

    In stock

    $949.95Free shippingChecked 11 h ago
    Visit Walmart
  • GreentoeNew

    In stock

    $995.00Free shippingChecked 11 h ago
    Visit Greentoe
  • B&H Photo-Video-AudioNew

    In stock

    $949.95+ $127.00 shippingChecked Nov 7
    Visit B&H Photo-Video-Audio
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $949.95Free shippingChecked 11 h ago
    Visit Amazon

Also available at

  • eBayCheck price at eBay
  • Sam's ClubCheck price at Sam's Club
  • BuyDig.comCheck price at BuyDig.com

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All 12 stores and price history →

Specs compared

SpecSamsung S90H OLED TVLG C5 55-Inch OLED TV
Resolution3840 x 21604K
HDTV Format4K4K UHD
ColorBlackBlack
Display TypeOLEDOLED
High DefinitionYes—
Screen FormFlat—
ConnectivityBluetooth, Wi-Fi, USB, HDMI, Ethernet, Optical …—
Weight18.3 lb—
Assistant SupportGoogle Assistant, Amazon Alexa—
HDRYes—
Network Functionality—Smart TV, Streaming
Supported Resolutions—4K
Show all 31 specsShow fewer specs
SpecSamsung S90H OLED TVLG C5 55-Inch OLED TV
Backlight Technology—OLED
Display Highlights—HDR
Refresh Rate—144Hz
Anti-Glare—Yes
Max Resolution V-Sync—VRR
Display Aspect Ratio—16:9
Dynamic Contrast Ratio—Infinite contrast
Image Contrast Ratio—Near-infinite
Viewing Angle—Wide
Menu Language

What reviewers say

Samsung S90H OLED TV

Owners of Samsung OLED sets like this one praise the contrast, the black levels and the wide viewing angles, and many say movies look better than on their old LED TV. Complaints center on brightness in bright rooms and on worry about burn-in from static content.

What people mention
  • Picture contrastPraisedOwners say the OLED panel delivers deep blacks and punchy contrast that LED sets cannot match.
  • BrightnessCriticisedReviewers note it cannot get as bright as high-end LED or Mini LED TVs, which hurts in bright rooms.
  • Viewing anglesPraisedPeople report color and contrast hold up well when watching from the side.
  • Burn-in riskMixedSome owners worry about static logos and news tickers leaving marks over time.

LG C5 55-Inch OLED TV

  • 4.4 / 5142 ratings

Owners of LG's C-series generally praise the deep blacks, accurate colors and gaming features, and the C5 continues that reputation. Complaints tend to focus on brightness in bright rooms and on the set's built-in sound rather than the picture.

What people mention
  • Picture qualityPraisedOwners describe deep blacks, rich contrast and natural colors, especially in darker rooms.
  • GamingPraisedPlayers report low lag, smooth 120Hz and 144Hz motion and working VRR with current consoles.
  • BrightnessMixedIt looks excellent in dim rooms, but some owners find it dimmer than expected in a bright, sunlit room.

Questions and answers

Which is better for gaming?
The Samsung S90H. Its 165Hz panel beats the LG's 144Hz, and it carries both FreeSync Premium Pro and G-Sync certification. The LG still handles VRR and 4K 120Hz console play well.
Which has better picture quality for movies?
The LG C5, mainly because of Dolby Vision. Most 4K discs and premium streams use Dolby Vision, and the C5 renders them natively while the Samsung shows them in HDR10.
Does the Samsung support Dolby Vision?
No. It supports HDR10+ and HDR10. If your library is heavy on Dolby Vision content, the LG is the safer pick.
Which is brighter?
Both are OLEDs with anti-glare coatings and similar full-screen brightness. The LG's Alpha 9 Gen8 processor boosts highlights more aggressively; the Samsung's Glare-Free layer cuts reflections in bright rooms.
Is the LG worth stepping up to over the Samsung?
For home movie and streaming use, yes: Dolby Vision, four HDMI ports and webOS make it the easier daily TV. For a gaming desk or a managed commercial install, the Samsung's 165Hz panel and Knox security are the stronger fit.
Which lasts longer?
Neither has a meaningful edge in lifespan. Both use OLED panels with similar burn-in risk, so vary content and avoid static logos on either.

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More comparisons

  • Samsung 55-Inch S90H OLED vs LG 55" Class B5 Series OLED AI 4K UHD Smart webOS TV (2025)
  • LG OLED55C5 55-Inch OLED evo AI 4K Smart TV (2025) vs LG 55" Class B5 Series OLED AI 4K UHD Smart webOS TV (2025)

Buying guides that pick them

  • Best value 55-inch OLED TVs
—
Spanish, English, French
Color Temperature—Yes
Smart TV—Yes
HDMI Ports—4
Internet Streaming Services—Netflix, Disney+
Network Connectivity—Ethernet
Video Interface—HDMI
PC Interface—HDMI
CEC Enabled—Yes
Expansion Slots—Common Interface (CI) slot
  • SoundCriticisedThe built-in speakers are called adequate for news but weak for films, with many buyers adding a soundbar.