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LG OLED evo C6 55" 4K Smart TV vs Samsung S90H OLED 4K Smart TV

Buy the LG C6 for a 55-inch OLED with the fuller feature set: Dolby Vision, four full-bandwidth HDMI 2.1 ports, G-Sync and FreeSync Premium, and 2.2-channel 40W sound. Buy the Samsung S90H if 48 inches fits your room better and you prefer Tizen with Bixby. Both are 4K OLEDs with 165Hz panels and deep blacks. The LG has the more complete spec sheet and the longer track record of owner praise for gaming and movie use; the Samsung's 4.9 rating from 884 owners shows strong satisfaction, but its listing is thinner on confirmed details.

  • Choose the LG OLED55C6PUA if you want a 55-inch OLED with Dolby Vision, four HDMI 2.1 ports, G-Sync and FreeSync Premium, and stronger built-in sound.
  • Choose the Samsung QN48S90HAEXZA if a 48-inch screen suits your space and you prefer Samsung's Tizen platform and Vision AI processing.

Prices

  • LG OLED evo C6 55" 4K Smart TV: $949.00 at Greentoe (last seen Nov 10)
  • Samsung S90H OLED 4K Smart TV: $997.99 at Walmart (checked today)
  • Difference: the LG OLED evo C6 55" 4K Smart TV is $48.99 cheaper than the Samsung S90H OLED 4K Smart TV at the latest prices (Nov 10 and Nov 13)
LG
LG 55" OLED55C6PUA 4K Smart TV 2026

LG OLED evo C6 55" 4K Smart TV

LG 55" OLED55C6PUA 4K Smart TV 2026

5(1 rating)
$949.00at GreentoeChecked Nov 10
See all prices and details
Visit Greentoe
Pros
  • Dolby Vision plus Dolby Atmos covers more HDR and audio sources
  • Four HDMI 2.1 ports with eARC, ALLM and QMS suit consoles and soundbars
  • G-Sync and FreeSync Premium cover PC and console gaming
  • 2.2-channel 40W speakers reduce the need for a soundbar
  • Brightness Booster and the α11 Gen3 processor sharpen upscaling
Cons
  • Wi-Fi 5 only, no Wi-Fi 6
  • 55 inches may be too large for small rooms
  • 2.2-channel sound still trails a dedicated soundbar
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 2 h ago
See all prices and details
Visit Walmart
Pros
  • 48-inch size fits smaller rooms and closer seating
  • 165Hz panel with OLED contrast
  • Tizen with Bixby and Alexa voice control
  • 4.9 out of 5 from 884 ratings
  • Slim, wall-friendly OLED design
Cons
  • No Dolby Vision; HDR10+ only
  • Only two speakers, with wattage unconfirmed
  • HDMI 2.1 features and Wi-Fi version not spelled out

What separates them

LG OLED evo C6 55" 4K Smart TVSamsung S90H OLED 4K Smart TV
Screen size55 in48 in
HDR formatsDolby Vision, HDR10, HLGHDR10+
Refresh rate120Hz native, VRR up to 165Hz165Hz
Variable refreshFreeSync Premium, G-Sync, VRRNot confirmed in listing
HDMI inputs4, with 4K 120Hz, eARC, ALLM, QMS, QFT4, details not confirmed
Audio2.2 channel, 40W, Dolby Atmos2 speakers, Dolby Atmos
Smart platformwebOS 2026 with Gemini and CopilotTizen with Vision AI, Bixby and Alexa
WirelessWi-Fi 5, Bluetooth 5.3, AirPlay, Google CastBluetooth; Wi-Fi version not confirmed

Price history

$999.99$949.00
Nov 2Nov 13
  • LG OLED evo C6 55" 4K Smart TV: lowest $949.00 on Nov 10 at Greentoe.
  • Samsung S90H OLED 4K Smart TV: lowest $997.99 on Nov 12 at PC Richard & Son; $997.99 on Nov 13.

Prices at every store

LG OLED evo C6 55" 4K Smart TV

  • GreentoeNew

    In stock

    $949.00Free shippingChecked Nov 10
    Visit Greentoe
  • Best BuyNew

    In stock

    $999.99Free shippingChecked Nov 10
    Visit Best Buy
  • AmazonNew

    Availability unknown

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

    $999.99Free shippingChecked Nov 10
    Visit Amazon
  • Lowe'sNew

    Availability unknown

    $999.99Free shippingChecked Nov 10
    Visit Lowe's

Also available at

  • ListenUpCheck price at ListenUp
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All 8 stores and price history →

Samsung S90H OLED 4K Smart TV

  • WalmartNew

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

    $997.99Free shippingChecked 2 h ago
    Visit Walmart
  • WalmartNew

    In stock

    $997.99Checked 2 h ago
    Visit Walmart
  • World Wide StereoNew

    In stockReturn policy

    $997.99Checked 6 h ago
    Visit World Wide Stereo
  • AmazonNew

    Availability unknown

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

    $997.99Free shippingChecked 6 h ago
    Visit Amazon

Store links may earn us a commission.

All 12 stores and price history →

Specs compared

SpecLG OLED evo C6 55" 4K Smart TVSamsung S90H OLED 4K Smart TV
Display type4K OLEDOLED
Screen size55 in48 in
Refresh rate120Hz Native (VRR 165Hz)165 Hz
Resolution3840 x 21604K UHD (2160p)
High DefinitionYesYes
HDTV Format4K4K
ColorBlackGray
Screen FormFlatFlat
Assistant SupportGoogle Assistant, Amazon Alexa, SiriGoogle Assistant, Amazon Alexa
HDRYesYes
ConnectivityBluetooth, Wi-Fi, RF, USB, HDMI, Ethernet, Opti…Bluetooth, Wi-Fi, USB, HDMI, Ethernet, Optical …
Supported Streaming ServicesNetflix, Prime Video, YouTube, HBO, Disney+Netflix, YouTube
Show all 40 specsShow fewer specs
SpecLG OLED evo C6 55" 4K Smart TVSamsung S90H OLED 4K Smart TV
Display resolution4K Ultra HD (3,840 x 2,160)—
Picture processorα11 AI Processor 4K Gen3—
HDR supportDolby Vision / HDR10 / HLG—
Audio output40W—
Speaker system2.2 channel—
HDMI inputs4ea (supports 4K 120Hz, eARC, VRR, ALLM, QMS, Q…—
USB inputs2ea (v 2.0)—
BluetoothYes (v 5.3)—
Wi-FiYes (Wi-Fi 5)—
Width

What reviewers say

LG OLED evo C6 55" 4K Smart TV

Owners of recent LG C-series OLEDs praise the deep blacks, wide viewing angles and low input lag, and call the C line the value pick among OLEDs. Common complaints center on average built-in sound and the need to baby the panel against static content.

What people mention
  • Picture qualityPraisedOwners say OLED blacks and contrast beat any LCD they have owned.
  • GamingPraisedLow lag and four HDMI 2.1 ports make it a favorite for PS5 and Xbox owners.
  • SoundCriticisedReviewers say the 40W speakers lack bass and most buyers add a soundbar.
  • BrightnessMixedBrightness Booster helps, but the panel still dims next to bright Mini-LED sets in sunlit rooms.

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 gaming?
The LG C6 is the safer pick. It lists four HDMI 2.1 ports with 4K 120Hz, ALLM, QMS and QFT, plus G-Sync and FreeSync Premium. The Samsung has a 165Hz panel but its listing does not confirm those HDMI 2.1 features.
Which has better picture quality?
Both are OLED, so contrast and black levels are close. The LG adds Dolby Vision and Brightness Booster, which help with bright rooms and Dolby Vision content. The Samsung relies on HDR10+ and its Vision AI processing.
Is the Samsung worth stepping up to over the LG?
Only if the 48-inch size matters more to you than the extra features. The LG gives you a larger screen, Dolby Vision, more confirmed HDMI 2.1 support and stronger built-in audio.
Which is better for movies?
The LG C6, mainly for Dolby Vision and its 2.2-channel 40W speakers with Dolby Atmos. The Samsung covers Dolby Atmos but not Dolby Vision, so some streaming films will fall back to HDR10+ or HDR10.
Which lasts longer?
Neither maker publishes a lifespan figure. Both use OLED panels with pixel-level dimming and built-in care routines. The LG lists OLED Care; the Samsung listing does not detail its panel protection.
Do both support voice assistants?
Yes. The LG supports Google Assistant, Alexa and Siri, and adds Gemini and Copilot on webOS 2026. The Samsung supports Bixby and Alexa through Tizen.

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Buying guides that pick them

  • Best value 55-inch OLED TVs
  • Best 48-inch HDR TVs
48.1 in wide
—
Depth1.8 in deep—
Weight36.6 lb, 45 lb, 47 lb—
HDMI Ports4 HDMI ports—
Video SystemATSC—
TV TunerYes (ATSC, QAM)—
Built-In SpeakersYes: 2—
Variable Refresh TechnologyFreeSync Premium, G-Sync, Variable Refresh Rate…—
A/V InputsAntenna / HDMI—
A/V OutputsOptical—
HDCP SupportNo—
WirelessWi-Fi 5 (802.11ac) / Bluetooth 5.3—
Ethernet I/O1x RJ45—
Virtual AssistantGoogle Gemini, Microsoft Copilot—
Smart TVYes: webOS 26—
Panel TypeOLED—
Display Size55"—
Native Resolution3840 x 2160—
CertificationsENERGY STAR—
  • SetupPraisedBuyers say it is quick to set up and the Tizen menus are easy to navigate.