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Samsung OLED S90F 4K Smart TV vs LG B5 Series OLED 4K TV (2025)

The Samsung S90F is the stronger TV: a brighter, glare-free QD-style OLED panel with a 144Hz refresh rate, four HDMI 2.1 ports and Samsung's NQ4 AI Gen3 processor. The LG B5 is LG's entry OLED tier, capped at 120Hz with the α8 processor, but it adds Dolby Vision and Dolby Atmos, which Samsung does not support. Buy the Samsung for a bright room, sports or high-frame-rate gaming; buy the LG if you want Dolby Vision films and a smaller 48-inch size.

  • Choose the Samsung S90F if you watch in a bright room, game at high frame rates, or want the punchier, glare-free picture.
  • Choose the LG B5 if you want Dolby Vision and Dolby Atmos, a 48-inch size, or LG's webOS app platform.

Prices

  • Samsung OLED S90F 4K Smart TV: $1,799.00 at Private Technology Group (last seen Nov 13)
  • LG B5 Series OLED 4K TV (2025): $299.99 at Best Buy (checked today)
  • Difference: the LG B5 Series OLED 4K TV (2025) is $1,499.01 cheaper than the Samsung OLED S90F 4K Smart TV at the latest prices (Nov 13 and Nov 14)
Samsung
Samsung OLED 4K S90 Smart Television

Samsung OLED S90F 4K Smart TV

Samsung OLED 4K S90 Smart Television

$1,799.00at Private Technology GroupChecked Nov 13
See all prices and details
Visit Private Technology Group
Pros
  • Glare-free OLED coating holds up in bright rooms
  • 144Hz panel with four HDMI 2.1 ports
  • Powerful NQ4 AI Gen3 upscaling
  • Wide size range from 42 to 83 inches
Cons
  • No Dolby Vision
  • No Dolby Atmos decoding
  • Peak brightness still trails top mini-LED sets
LG
LG OLED48B5P 48 inch Class B5 Series OLED AI 4K Smart webOS TV (2025)

LG B5 Series OLED 4K TV (2025)

LG OLED48B5P 48 inch Class B5 Series OLED AI 4K Smart webOS TV (2025)

4.3(18 ratings)
$299.99at Best BuyChecked 40 min ago
See all prices and details
Visit Best Buy

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

Pros
  • Dolby Vision and Dolby Atmos support
  • G-Sync plus FreeSync Premium for PC and console gaming
  • webOS 25 with Quick Cards and free channels
  • Up to five years of webOS updates
Cons
  • Dimmer panel with more reflections
  • 120Hz cap and older α8 processor
  • Fewer sizes in this series

What separates them

Samsung OLED S90F 4K Smart TVLG B5 Series OLED 4K TV (2025)
Panel brightness and glareGlare-Free coating with OLED HDR+ and strong highlight punchStandard OLED panel, dimmer in bright rooms
Refresh rate144Hz native, VRR up to 4K 165Hz120Hz native with VRR
HDR formatsHDR10+ and HLG, no Dolby VisionDolby Vision, HDR10 and HLG
AudioObject Tracking Sound, no Dolby Atmos decodingDolby Atmos support
ProcessorNQ4 AI Gen3 with 128 neural networksα8 AI Processor Gen2
Gaming syncFreeSync Premium and VRRNVIDIA G-Sync and FreeSync Premium
Smart platformTizen with Vision AIwebOS 25 with Quick Cards and LG Channels
Screen sizes42 to 83 inches48-inch class in this model

Price history

$899.99$299.99
Oct 30Nov 14
  • Samsung OLED S90F 4K Smart TV: lowest $899.99 on Nov 13.
  • LG B5 Series OLED 4K TV (2025): lowest $299.99 on Nov 7 at Best Buy; $299.99 on Nov 14.

Prices at every store

Samsung OLED S90F 4K Smart TV

  • Private Technology GroupNew

    In stockReturn policy

    $1,799.00Checked Nov 13
    Visit Private Technology Group
Prices and history →

LG B5 Series OLED 4K TV (2025)

  • Best BuyNew

    In stock

    $299.99Free shippingChecked 40 min ago
    Visit Best Buy
  • WalmartNew

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

    $899.99Free shippingChecked 40 min ago
    Visit Walmart
  • NeweggNew

    In stock

    $899.99Free shippingChecked 40 min ago
    Visit Newegg
  • mercari.comNew

    Availability unknown

    $575.00Checked Nov 8
    Visit mercari.com

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

All 14 stores and price history →

Specs compared

SpecSamsung OLED S90F 4K Smart TVLG B5 Series OLED 4K TV (2025)
Resolution3840 x 2160 (Ultra HD 4K)4K UHD
Model Year20252025
Refresh rate144 Hz120 Hz
Weight92.6 lb / 42 kg (without Stand)25.4 lb, 31.5 lb, 58.9 lb
BacklightSelf-luminous—
Screen TechnologyOLED—
Manufacturer'S Warranty24 months—
Screen sizes42-, 48-, 55-, 65-, 77- and 83-inch—
Panel typeclassic OLED—
Native resolution3840 x 2160—
Variable refreshFreeSync Premium, Variable Refresh Rate (VRR)—
Auto low latencyYes—
Show all 40 specsShow fewer specs
SpecSamsung OLED S90F 4K Smart TVLG B5 Series OLED 4K TV (2025)
HDMI inputs4x HDMI 2.1—
Audio return channeleARC—
WirelessWi-Fi 5 (802.11ac) / Bluetooth 5.0—
TV tunerYes (ATSC 3.0, Clear QAM)—
VESA mounting400 x 300 mm—
color—Black
Screen size—48 in
Display—LED
Brand—LG
Television type—

What reviewers say

Samsung OLED S90F 4K Smart TV

Reviewers rate the S90F highly for its glare-free OLED picture, deep blacks and strong gaming features. Many call it one of the better-value premium OLEDs of 2025, though some miss Dolby Vision and note that peak brightness is lower than top-tier QD-OLEDs.

What people mention
  • Glare handlingPraisedOwners say the glare-free coating keeps windows and lamps from washing out the picture.
  • BrightnessMixedReviewers find it bright enough for most rooms but dimmer than top QD-OLEDs in direct light.
  • GamingPraisedPlayers report low lag, smooth 144 Hz motion and working VRR across the four HDMI 2.1 ports.
  • Dolby VisionCriticisedSome reviewers mark it down for supporting HDR10+ but not Dolby Vision.

LG B5 Series OLED 4K TV (2025)

  • 4.3 / 518 ratings

Buyers rate it 4.3 out of 5 from 18 ratings.

What people mention
  • Picture qualityPraisedOwners highlight the OLED contrast and black levels as the main reason to buy.
  • GamingPraised120Hz, VRR and four HDMI 2.1 ports are called out as strong for consoles.
  • BrightnessCriticisedThe B5 is dimmer than C-series OLEDs, which shows in sunlit rooms.
Reviews
  • You can get an LG B5 OLED for less than $900
  • LG’s 77-inch B5 OLED TV is down to $1,500 and comes with a $200 gift card
  • The LG B5 is a great entry-level OLED TV - especially at 50% off - X

Questions and answers

Which is better for a bright living room?
The Samsung S90F. Its glare-free coating and brighter output keep the picture readable with daylight or lamps nearby. The LG B5 reflects more and looks washed out in strong light.
Which is better for gaming?
The Samsung wins on motion with its 144Hz panel and four HDMI 2.1 ports. The LG B5 counters with G-Sync support and a Game Optimizer dashboard, so PC players on Nvidia cards may prefer it.
Does the Samsung support Dolby Vision?
No. Samsung backs HDR10+ instead. If Dolby Vision discs and streams matter to you, the LG B5 is the one that handles them.
Which has better sound?
The LG B5 supports Dolby Atmos, which helps with height effects from its built-in speakers. The Samsung uses Object Tracking Sound but does not decode Atmos. Either way, a soundbar improves both.
Is the Samsung worth stepping up to over the LG?
Yes for most buyers. The brighter glare-free panel, 144Hz refresh and stronger processor are real gains. Step down to the LG only if Dolby Vision or the 48-inch size is the priority.
Which lasts longer?
Both are OLED and carry similar panel wear risk over many years of heavy use. Samsung gives a 24-month manufacturer warranty; LG's coverage depends on the retailer and region.

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Buying guides that pick them

  • Best OLED TVs under $500
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  • Best 48-inch HDR TVs under $800
LED TVs
Smart tech—Y
Tv features—High Dynamic Range
Streamers—Netflix
Platform—WebOS
HDMI number—4
Mount type—Freestanding
High dynamic range format—Dolby Vision, HDR10, HLG
Sound technology—Dolby Atmos
Horizontal viewing angle—178 degrees
Vertical viewing angle—178 degrees
Video streaming quality—4K Ultra HD
Contrast ratio range—0000:0
Brightness—0 nt
Number of speakers—1
Input/output quantity—1
Recommended location—Indoor
Has nrtl listing certification—N
High Definition—Yes
Sound
Mixed
Dolby Atmos is supported, but built-in speakers are described as ordinary.
  • Best 48-inch HDR TVs