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LG C6 Series OLED evo 4K TV vs Samsung S90H OLED 4K Smart TV

Both are 48-inch 4K OLEDs with 120Hz-class panels, four HDMI ports and Dolby Atmos, so the picture quality gap is small. The LG C6 leans toward movie fans and gamers with Dolby Vision, four HDMI 2.1 ports, G-Sync and FreeSync Premium, and webOS with Gemini and Copilot built in. The Samsung S90H counters with a 165Hz panel, HDR10+ and Tizen, and its owner ratings are higher and far more numerous. Buy the LG if you watch Dolby Vision content or want the most gaming-friendly port set; buy the Samsung if you want the higher refresh rate and the stronger track record.

  • Choose the LG C6 if you watch a lot of Dolby Vision movies or connect a PC and multiple consoles that need HDMI 2.1 on every port.
  • Choose the Samsung S90H if you want a 165Hz panel for fast PC gaming and prefer Tizen with Bixby and Alexa.

Prices

  • LG C6 Series OLED evo 4K TV: $949.99 at Amazon (checked today)
  • Samsung S90H OLED 4K Smart TV: $997.99 at Walmart (checked today)
  • Difference: the LG C6 Series OLED evo 4K TV is $48.00 cheaper than the Samsung S90H OLED 4K Smart TV today
LG
LG 48" C6 Series 4K UHD OLED AI Smart webOS 26 TV

LG C6 Series OLED evo 4K TV

LG 48" C6 Series 4K UHD OLED AI Smart webOS 26 TV

4.7(190 ratings)
$949.99at AmazonChecked 1 h ago
See all prices and details
Visit Amazon

Store links may earn us a commission. As an Amazon Associate, Deal.ai earns from qualifying purchases.

Pros
  • Dolby Vision and Dolby Atmos support for film content
  • Four HDMI 2.1 ports suit multiple consoles and a PC
  • G-Sync and FreeSync Premium cover both graphics card brands
  • webOS includes Gemini and Copilot plus 400+ free LG Channels
Cons
  • Fewer owner ratings than the Samsung
  • Brightness Booster helps but OLED still trails bright LCDs in a sunlit room
  • No HDR10+ support
Samsung
Samsung 48" Class S90H Series OLED 4K UHD Samsung Vision AI Smart Tizen TV 2026 - QN48S90HAEXZA

Samsung S90H OLED 4K Smart TV

Samsung 48" Class S90H Series OLED 4K UHD Samsung Vision AI Smart Tizen TV 2026 - QN48S90HAEXZA

4.9(884 ratings)
$997.99at WalmartChecked 1 h ago
See all prices and details
Visit Walmart
Pros
  • 165Hz panel is faster for high-frame-rate PC gaming
  • Higher owner rating from a much larger pool of reviews
  • Tizen is fast and has a deep app library
  • HDR10+ support for that format's content
Cons
  • No Dolby Vision, which covers most 4K movie discs and many streams
  • HDMI version and VRR support are not spelled out
  • Bixby is less useful than Google Assistant for many people

What separates them

LG C6 Series OLED evo 4K TVSamsung S90H OLED 4K Smart TV
HDR formatDolby Vision plus HDR10HDR10+ (no Dolby Vision)
Refresh rate120 Hz native, 165Hz gaming mode165 Hz
HDMI ports4x HDMI 2.14 HDMI, version not stated
Variable refreshNVIDIA G-Sync and AMD FreeSync PremiumNot specified
Smart platformwebOS 26 with Google Gemini and Microsoft CopilotTizen with Samsung Vision AI
Voice assistantsAlexa and Google AssistantBixby and Alexa
Free channelsLG Channels, 400+ free channelsNot specified
Owner ratings4.7 from 190 ratings4.9 from 884 ratings

Price history

$999.99$949.99
Nov 9Nov 14
  • LG C6 Series OLED evo 4K TV: lowest $949.99 on Nov 14 at Amazon.
  • Samsung S90H OLED 4K Smart TV: lowest $997.99 on Nov 12 at PC Richard & Son; $997.99 on Nov 14.

Prices at every store

LG C6 Series OLED evo 4K TV

  • WalmartNew

    In stockSold by Walts TVReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $999.99Checked 56 min ago
    Visit Walmart
  • The Home DepotNew

    In stock

    $999.99Free shippingChecked 1 h ago
    Visit The Home Depot
  • AmazonNew

    Availability unknown

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

    $949.99Free shippingChecked 1 h ago
    Visit Amazon
  • eBayNew

    Availability unknownSold by worldwidestereo (99.6% positive, 55,700 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $964.99Free shippingChecked 2 h ago
    Visit eBay

Store links may earn us a commission.

All 14 stores and price history →

Samsung S90H OLED 4K Smart TV

  • WalmartNew

    In stock

    $997.99Checked 1 h ago
    Visit Walmart
  • World Wide StereoNew

    In stockReturn policy

    $997.99Checked Nov 13
    Visit World Wide Stereo
  • AmazonNew

    Availability unknown

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

    $997.99Free shippingChecked 1 h ago
    Visit Amazon
  • PC Richard & SonNew

    Availability unknown

    $997.99Checked Nov 12
    Visit PC Richard & Son

Store links may earn us a commission.

All 13 stores and price history →

Specs compared

SpecLG C6 Series OLED evo 4K TVSamsung S90H OLED 4K Smart TV
screen_size48 in48 in
colorBlackGray
Resolution4K UHD4K UHD (2160p)
DisplayOLEDOLED
Refresh rate120 Hz165 Hz
BrandLGSamsung
Television typeOLED TVsOLED TVs
Smart techYY
StreamersNetflix, HBO Max, Disney+, YouTube, Prime Video…Netflix
PlatformWebOSTizen
Virtual asst.Alexa, Google AssistantBixby, Alexa
HDMI number44
Show all 33 specsShow fewer specs
SpecLG C6 Series OLED evo 4K TVSamsung S90H OLED 4K Smart TV
Mount typeFreestandingFreestanding
High dynamic range formatDolby VisionHDR10+
Sound technologyDolby AtmosDolby Atmos
Color categoryBlackBlack
ManufacturerLGSAMSUNG ELECTRONICS AMERICA
Horizontal viewing angle178 degrees178 º
Vertical viewing angle178 degrees178 º
Video streaming quality4K Ultra HD4K Ultra HD
Number of speakers22

What reviewers say

LG C6 Series OLED evo 4K TV

  • 4.7 / 5190 ratings

Owners rate the C6 highly, praising the deep blacks, strong gaming features and clean design. Complaints center on brightness in bright rooms and the smaller 48-inch size rather than picture quality.

What people mention
  • Picture qualityPraisedOwners say the OLED panel delivers deep blacks and rich contrast that LCD sets cannot match.
  • GamingPraisedReviewers highlight the four HDMI 2.1 ports and VRR support as a strong fit for current consoles and PCs.
  • BrightnessMixedSome owners find HDR highlights impressive in a dark room but wish for more punch in daylight.
  • SizeMixedBuyers like the 48-inch option for small rooms but note it is the smallest in the C6 range.

Samsung S90H OLED 4K Smart TV

  • 4.9 / 5884 ratings

Owners rate the S90H very highly across 884 ratings, and the praise centers on picture quality, contrast and ease of setup. Complaints are few and mostly about sound and brightness in bright rooms.

What people mention
  • Picture qualityPraisedOwners describe deep blacks, strong contrast and rich color from the OLED panel.
  • SoundCriticisedReviewers find the two built-in speakers weak and recommend a soundbar.
  • BrightnessMixedThe picture is bright enough for most rooms but can look dim in strong daylight.

Questions and answers

Which is better for movies?
The LG C6, mainly because of Dolby Vision, which most 4K Blu-rays and many streaming titles use. The Samsung handles HDR10 and HDR10+ well but cannot show Dolby Vision.
Which is better for gaming?
Close. The Samsung's 165Hz panel is faster on paper, but the LG lists four HDMI 2.1 ports plus G-Sync and FreeSync Premium, which makes connecting a PC and two consoles easier.
Is the Samsung worth stepping up to over the LG?
Only if 165Hz and Tizen matter more to you than Dolby Vision and the full HDMI 2.1 set. Otherwise the two are close and the LG covers more movie formats.
Which has better smart features?
The LG runs webOS 26 with Gemini and Copilot and works with Alexa and Google Assistant. The Samsung runs Tizen with Vision AI and works with Bixby and Alexa. Both are fast; pick by which assistant you use.
Do either suffer from OLED burn-in?
Both are OLED, so static logos and tickers can leave marks over long periods. LG advertises OLED Care routines; Samsung does not detail an equivalent here. Vary content and avoid leaving a static image on for hours.
Which is better in a bright room?
Neither is ideal. OLED blacks wash out in direct sun. The LG's Brightness Booster helps somewhat, but a bright LCD is the better pick for a sunlit room.

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Buying guides that pick them

  • Best 48-inch OLED TVs
  • Best 48-inch HDR TVs
Input/output typeHDMIHDMI
Inputs & outputs4 HDMI 2.1HDMI
Input/output quantity4—
Tv features—Bluetooth
High Definition—Yes
HDTV Format—4K
Screen Form—Flat
Display Type—OLED
Assistant Support—Google Assistant, Amazon Alexa
HDR—Yes
Connectivity—Bluetooth, Wi-Fi, USB, HDMI, Ethernet, Optical …
Supported Streaming Services—Netflix, YouTube
Setup
Praised
Buyers say it is quick to set up and the Tizen menus are easy to navigate.