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LG C6 Series OLED TV vs Samsung 42” S90H OLED 4K Smart TV

Both are 42-inch 4K OLEDs with 165Hz panels, so the split comes down to gaming features and HDR support. The LG C6 adds four HDMI 2.1 ports, G-SYNC and FreeSync Premium, and Dolby Vision with Dolby Atmos, which makes it the stronger pick for console and PC gamers and for movie watchers. The Samsung S90H counters with Glare Free coating and HDR10+ support, and owners rate it slightly higher, though from a smaller sample. Buy the LG for gaming and Dolby Vision content; buy the Samsung if your room is bright and glare is your main complaint.

  • Choose the LG C6 if you game on a PS5, Xbox or PC and want four HDMI 2.1 ports, G-SYNC, FreeSync Premium and Dolby Vision in one set.
  • Choose the Samsung S90H if your room has windows or lamps facing the screen and you want Glare Free coating plus HDR10+ support.

Prices

  • LG C6 Series OLED TV: $899.99 at Walmart (last seen Nov 9)
  • Samsung 42” S90H OLED 4K Smart TV: $885.00 at Newegg (checked today)
  • Difference: the Samsung 42” S90H OLED 4K Smart TV is $14.99 cheaper than the LG C6 Series OLED TV at the latest prices (Nov 9 and Nov 10)
LG
LG 42" C6 Series 4K UHD OLED AI Smart webOS 26 TV

LG C6 Series OLED TV

LG 42" C6 Series 4K UHD OLED AI Smart webOS 26 TV

4.8(2,339 ratings)
$899.99at WalmartChecked 20 h ago
See all prices and details
Visit Walmart
Pros
  • Four HDMI 2.1 ports cover a console, PC and soundbar at once
  • G-SYNC and FreeSync Premium suit both NVIDIA and AMD graphics cards
  • Dolby Vision and Dolby Atmos for film and streaming
  • 0.1ms response time and 165Hz refresh for fast games
  • Large rating base of 2,339 owners at 4.8
Cons
  • Glossy screen shows reflections in bright rooms
  • No HDR10+ support
  • 42-inch size limits the impact of 4K detail
Samsung
Samsung 42” Class S90H Series OLED 4K UHD Samsung Vision AI Smart Tizen TV 2026

Samsung 42” S90H OLED 4K Smart TV

Samsung 42” Class S90H Series OLED 4K UHD Samsung Vision AI Smart Tizen TV 2026

4.9(870 ratings)
$885.00at NeweggChecked 5 h ago
See all prices and details
Visit Newegg

Store links may earn us a commission. Price via Klarna.

Pros
  • Glare Free coating cuts reflections from windows and lamps
  • HDR10+ and HDR10+ Adaptive for Samsung and Amazon content
  • 165Hz panel with the Ultimate Gaming Pack
  • Highest owner rating in this pair at 4.9
  • Slim, flat design at 18.3 lb without stand
Cons
  • No Dolby Vision
  • No Dolby Atmos or G-SYNC listed
  • Rating comes from 870 owners, a smaller sample than the LG

What separates them

LG C6 Series OLED TVSamsung 42” S90H OLED 4K Smart TV
HDR formatsDolby Vision, HDR10 and HLGHDR10, HDR10+, HDR10+ Adaptive and HLG, no Dolby Vision
Anti-glareStandard glossy OLED finishGlare Free coating reduces reflections
Gaming syncNVIDIA G-SYNC and AMD FreeSync Premium with VRRUltimate Gaming Pack at up to 165Hz; sync tech not specified
HDMI 2.1 ports4 ports, all HDMI 2.14 HDMI ports, version not stated
SoundDolby Atmos support, Filmmaker Mode20W speakers, no Dolby Atmos listed
Smart platformwebOS with AI picture and sound tuningTizen with Samsung Vision AI
Owner ratings4.8 from 2,339 ratings4.9 from 870 ratings
Stated resolution3840x2160 nativeListing shows 3840x1600, which conflicts with 4K; confirm before buying

Price history

$899.99$885.00
Nov 7Nov 10
  • LG C6 Series OLED TV: lowest $899.99 on Nov 9 at Abt Electronics; $899.99 on Nov 10.
  • Samsung 42” S90H OLED 4K Smart TV: lowest $885.00 on Nov 9 at Newegg; $885.00 on Nov 10.

Prices at every store

LG C6 Series OLED TV

  • WalmartNew

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

    $899.99Checked 20 h ago
    Visit Walmart
  • Best BuyNew

    In stock

    $899.99Free shippingChecked 20 h ago
    Visit Best Buy
  • Abt ElectronicsNew

    In stock

    $899.99Free shippingChecked 20 h ago
    Visit Abt Electronics
  • NeweggNew

    In stock

    $899.99Free shippingChecked 20 h ago
    Visit Newegg

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

All 6 stores and price history →

Samsung 42” S90H OLED 4K Smart TV

  • NeweggNew

    In stock

    $885.00Free shippingChecked 5 h ago
    Visit Newegg
  • Best BuyNew

    In stock

    $897.99Free shippingChecked 5 h ago
    Visit Best Buy
  • Abt ElectronicsNew

    In stock

    $897.99Free shippingChecked 5 h ago
    Visit Abt Electronics
  • Best BuyNew

    In stock

    $897.99+ $16.49 shippingChecked 11 h ago
    Visit Best Buy

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

All 19 stores and price history →

Specs compared

SpecLG C6 Series OLED TVSamsung 42” S90H OLED 4K Smart TV
screen_size42 in42 in
colorBlackGray
Refresh rate165Hzup to 165Hz
ProcessorAlpha 11 AI Processor Gen3NQ4 AI Gen3
Display technologyOLED—
Resolution format4K (UHD)—
Native vertical resolution2160—
Native horizontal resolution3840—
Diagonal viewable size41.5—
Response time0.1ms—
Annual energy consumption117.0—
On mode power62.8—
Show all 40 specsShow fewer specs
SpecLG C6 Series OLED TVSamsung 42” S90H OLED 4K Smart TV
Standby mode power0.4—
Resolution—2160p (4K)
Display type—OLED
HDR formats—HDR10, HDR10+, HLG
Picture processor—NQ4 AI Gen3 Processor
Speaker output—20 W
HDMI ports—4
USB ports—2
Weight without stand—8.3 kg
Dimensions

What reviewers say

LG C6 Series OLED TV

  • 4.8 / 52,339 ratings

Owners rate it very highly, praising picture quality, gaming features and the four HDMI 2.1 ports. Complaints center on brightness in bright rooms and the small screen size.

What people mention
  • Picture qualityPraisedOwners call the contrast and black levels excellent, especially in dark rooms.
  • GamingPraisedHigh refresh rate, VRR and four HDMI 2.1 ports are repeatedly singled out.
  • BrightnessCriticisedSome say the panel struggles in bright, sunlit rooms.
  • SizeMixedBuyers like the compact footprint but some find 42 inches small for a main TV.

Samsung 42” S90H OLED 4K Smart TV

  • 4.9 / 5870 ratings

The combination of OLED contrast and the new anti-glare coating is frequently cited as a major improvement over previous generations.

What people mention
  • ReflectionsPraisedThe Glare Free technology is highly effective at neutralizing ambient light in bright environments.
  • GamingPraisedThe 165Hz refresh rate and Ultimate Gaming Pack make it a top choice for PC and console gamers.
  • Sound qualityCriticisedThe 20W speakers are described as thin, often requiring an external soundbar for a full experience.
  • Picture processingPraised

Questions and answers

Which is better for PS5 and Xbox gaming?
The LG C6. It lists four HDMI 2.1 ports, G-SYNC, FreeSync Premium, VRR and a 0.1ms response time. The Samsung also runs up to 165Hz but does not state G-SYNC or FreeSync support.
Which handles a bright room better?
The Samsung S90H. Its Glare Free coating is built to reduce reflections. The LG uses a standard glossy OLED finish, so lamps and windows will show on screen.
Does the Samsung support Dolby Vision?
No. It supports HDR10, HDR10+, HDR10+ Adaptive and HLG. The LG C6 supports Dolby Vision, which matters for Dolby Vision movies and shows on streaming services.
Is the LG worth stepping up to over the Samsung?
If you game on a console or PC, yes. The LG's HDMI 2.1 ports, G-SYNC and FreeSync Premium are the clearest feature gap. If glare is your main problem, the Samsung is the better fit.
Which lasts longer?
Neither maker publishes an OLED lifespan figure for these sets, and both use self-lit pixels. The LG's larger owner base of 2,339 ratings at 4.8 is the more tested track record; the Samsung sits at 4.9 from 870.
Is the Samsung really 4K?
It is sold as a 4K OLED, but its listed native resolution reads 3840x1600, which is not full 4K height. Confirm the panel spec before you buy if full 2160p matters to you.

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Buying guides that pick them

  • Best 42-43 inch OLED TVs under $1,500
—
934.47 (W) x 542.54 (H) x 39.62 (D) mm
Input power—175 W
TV Tuner—DVB-T2, DVB-S2, DVB-C
Connections—USB-A
HDR Type—HDR10+, HDR10+ Adaptive, HLG, HDR10
Refresh Rate (Hz)—165
Screen Resolution—3840x1600
Smart TV—Yes
Release Year—2026
HDR—Yes
Operating System—Tizen
Display—OLED
High Definition—Yes
HDTV Format—4K
Screen Form—Flat
Connectivity—Bluetooth, Wi-Fi, USB, HDMI, Ethernet, Optical …
Weight—18.3 lb
Model—QN42S90HAEXZA
Lighting—Self-illuminating pixels
The AI-powered processor is noted for adding significant depth and detail to non-4K content.