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Samsung OLED S90H 55-inch 4K TV vs LG C4 OLED evo 4K Smart TV

Both are 4K OLED TVs with four HDMI ports and strong gaming support, so the choice comes down to priorities. The Samsung S90H has the edge for gamers and bright rooms: a 165Hz panel, a glare-reducing coating and a newer AI processor. The LG C4 is the safer all-rounder for movie and mixed viewing, with the webOS platform and LG's long track record on OLED. Owners of both praise the deep blacks and wide viewing angles; the Samsung's higher refresh rate is the clearest hardware advantage.

  • Choose the Samsung S90H if you game at high frame rates or watch in a bright room and want the glare-free coating and 165Hz panel.
  • Choose the LG C4 if you want a proven OLED for movies and streaming and prefer LG's webOS platform.

Prices

  • Samsung OLED S90H 55-inch 4K TV: $1,199.99 at Merlin's TV (checked today)
  • LG C4 OLED evo 4K Smart TV: $1,029.00 at Amazon (checked today)
  • Difference: the LG C4 OLED evo 4K Smart TV is $170.99 cheaper than the Samsung OLED S90H 55-inch 4K TV today
Samsung
Samsung 55-inch OLED 4K Vision AI Smart TV QN55S90HAEXZA

Samsung OLED S90H 55-inch 4K TV

Samsung 55-inch OLED 4K Vision AI Smart TV QN55S90HAEXZA

$1,199.99at Merlin's TVChecked 9 h ago
See all prices and details
Visit Merlin's TV
Pros
  • 165Hz panel suits high-frame-rate PC and console gaming
  • Glare Free coating handles bright rooms well
  • HDR10+ support
  • Vision AI Companion answers on-screen questions
  • Four HDMI ports and three USB ports
Cons
  • No Dolby Vision
  • Tizen app selection is narrower than webOS in some regions
  • 2.1 audio is modest without a soundbar
LG
LG C4 OLED evo 4K Smart TV (2024)

LG C4 OLED evo 4K Smart TV

LG C4 OLED evo 4K Smart TV (2024)

$1,029.00at AmazonChecked 4 h ago
See all prices and details
Visit Amazon

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

Pros
  • Dolby Vision support for streaming content
  • webOS is fast and widely supported by apps
  • Proven OLED picture with wide viewing angles
  • Strong gaming features with VRR and G-SYNC
  • Long track record for OLED reliability
Cons
  • 120Hz panel is lower than the Samsung's 165Hz
  • No anti-glare coating, so reflections show more
  • 2.0 channel audio

What separates them

Samsung OLED S90H 55-inch 4K TVLG C4 OLED evo 4K Smart TV
Panel refresh rate165Hz with Motion Xcelerator, G-SYNC and FreeSync Premium120Hz with VRR and G-SYNC certification
Anti-glareGlare Free coating with VDE-certified Real BlackNo anti-glare treatment listed
ProcessorNQ4 AI Gen3 with 4K AI upscalingLG a9 AI processor (2024)
HDR formatsHDR10+ and OLED HDR+HDR10 and Dolby Vision
Smart platformTizen with Vision AI Companion and Google Assistant/AlexawebOS with ThinQ AI and voice assistants
Audio2.1 channel2.0 channel with AI Sound Pro
Stand and mountingVESA 300x200, 32.19 lbs without standVESA 300x200, similar panel weight
Dolby VisionNot supportedSupported

Price history

$1,297.99$630.43
Oct 31Nov 10
  • Samsung OLED S90H 55-inch 4K TV: lowest $1,297.99 on Oct 31 at Best Buy.
  • LG C4 OLED evo 4K Smart TV: lowest $630.43 on Nov 4; $1,029.00 on Nov 10.

Prices at every store

Samsung OLED S90H 55-inch 4K TV

  • Merlin's TVNew

    In stockReturn policy

    $1,199.99Checked 9 h ago
    Visit Merlin's TV
  • Best BuyNew

    Availability unknown

    $1,297.99Checked Oct 31
    Visit Best Buy
  • B&H Photo-Video-AudioNew

    Availability unknown

    $1,297.99Checked Oct 31
    Visit B&H Photo-Video-Audio
  • WalmartNew

    Availability unknown

    $1,297.99Checked Oct 31
    Visit Walmart

Also available at

  • Kaybee SecurityCheck price at Kaybee Security
All 10 stores and price history →

LG C4 OLED evo 4K Smart TV

  • eBayPre-owned

    In stockSold by buydig

    $870.00Free shippingChecked 4 h ago
    Visit eBay
  • AmazonNew

    Availability unknown

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

    $1,029.00Free shippingChecked 4 h ago
    Visit Amazon

Store links may earn us a commission.

All 2 stores and price history →

Specs compared

SpecSamsung OLED S90H 55-inch 4K TVLG C4 OLED evo 4K Smart TV
Display typeOLEDOLED
Refresh rate165Hz120 Hz
HDMI portsHDMI x44
Resolution3840 x 21604K
HDTV Format4K4K UHD
Screen size54.6"—
Native resolution3840x2160—
ProcessorNQ4 Ai Gen3 Processor—
HDR standardsHDR10+, OLED HDR+—
Smart platformTizen—
Audio system2.1 Channel—
USB interfaces3—
Show all 39 specsShow fewer specs
SpecSamsung OLED S90H 55-inch 4K TVLG C4 OLED evo 4K Smart TV
Weight without stand32.19 lbs. (14.60 kg)—
VESA mount300mm x 200mm (11.8 x 7.9 in.)—
High DefinitionYes—
ColorBlack—
Screen FormFlat—
Assistant SupportGoogle Assistant, Amazon Alexa—
HDRYes—
ConnectivityBluetooth, Wi-Fi, USB, HDMI, Ethernet, Optical …—
Network Functionality—Smart TV
Supported Resolutions

What reviewers say

LG C4 OLED evo 4K Smart TV

Owners of LG's recent OLED evo sets praise the contrast, gaming features and webOS interface. Common complaints center on reflections in bright rooms, modest built-in audio and the risk of burn-in with static content.

What people mention
  • Picture qualityPraisedOwners highlight deep blacks and strong contrast, especially in dim rooms.
  • GamingPraised120 Hz, VRR and G-Sync certification are called out as smooth and responsive.
  • GlareCriticisedThe lack of an anti-glare coating makes reflections noticeable in bright rooms.
  • SoundCriticisedBuilt-in speakers are described as thin, with a soundbar recommended.

Questions and answers

Which is better for gaming?
The Samsung S90H, mainly because of its 165Hz panel and Motion Xcelerator. The LG C4 is still a strong gaming TV at 120Hz with VRR and G-SYNC.
Which has better picture quality?
Both use OLED panels with deep blacks and wide viewing angles, so they are close. The LG adds Dolby Vision, while the Samsung adds HDR10+ and a glare-free coating.
Do I need Dolby Vision?
It matters if you watch a lot of Dolby Vision content on streaming services. The LG C4 supports it; the Samsung S90H does not.
Which handles a bright room better?
The Samsung S90H, thanks to its Glare Free coating. The LG C4 has no anti-glare treatment, so reflections are more visible.
Is the Samsung worth stepping up to over the LG?
If you game at high frame rates or watch in a bright room, yes. For movie-first viewing, the LG C4 is the more balanced pick.
Which lasts longer?
Both are OLED sets with similar panel lifespans, and neither brand publishes a firm figure. Burn-in risk is low for normal mixed viewing on either.

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Buying guides that pick them

  • Best 4K TVs
—
4K
Backlight Technology—OLED
Display Highlights—HDR
Anti-Glare—No
Max Resolution V-Sync—VRR, Nvidia G-Sync VRR certification
Display Aspect Ratio—16:9
Dynamic Contrast Ratio—Infinite contrast
Image Contrast Ratio—Excellent contrast
Viewing Angle—Wide viewing angles
Viewing Angle (Vertical)—178° vertical
Smart TV—Yes
Internet Streaming Services—Netflix
Network Connectivity—Ethernet, Wi-Fi
Video Interface—HDMI
PC Interface—HDMI
CEC Enabled—Yes (Simplink (HDMI CEC))
Expansion Slots—CI+
Dimensions—932x577x170 mm (with stand)