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LG B5 OLED TV vs Samsung S90H OLED 4K TV

Both are 4K OLED TVs with 120 Hz panels and strong HDR, so the picture difference is smaller than the price gap suggests. The LG B5 runs webOS with all four HDMI ports at 2.1, Dolby Vision, and a mature app store; the Samsung S90H uses Tizen, adds Samsung's anti-glare coating and Motion Xcelerator, but drops Dolby Vision and has fewer HDMI 2.1 ports. Buyers rate both highly; the B5 is the safer pick for mixed movie and console use, the S90H for a bright room where reflections matter.

  • Choose the LG B5 if you want Dolby Vision, four full HDMI 2.1 ports for a console plus soundbar, and the widest app support.
  • Choose the Samsung S90H if your room is bright, you watch mostly Samsung-native apps, and you prefer its anti-glare screen and slimmer build.

Prices

  • LG B5 OLED TV: $575.00 at mercari.com (last seen Nov 9)
  • Samsung S90H OLED 4K TV: $897.99 at Amazon (last seen Nov 9)
  • Difference: the LG B5 OLED TV is $322.99 cheaper than the Samsung S90H OLED 4K TV at the latest prices (Nov 9)
LG
LG B5

LG B5 OLED TV

LG B5

4.7(4,200 ratings)
$575.00at mercari.comChecked Nov 9
See all prices and details
Visit mercari.com
Pros
  • Dolby Vision plus HDR10 and HLG covers every major format
  • Four HDMI 2.1 ports suit a console, PC and soundbar at once
  • webOS has the broadest app selection and a clean interface
  • Works with Alexa, Google Assistant and Apple Home
  • Strong owner ratings across thousands of reviews
Cons
  • Glossy screen shows reflections in bright rooms
  • Heavier and deeper than the Samsung at the same size
  • Peak brightness trails the brightest OLEDs
Samsung
Samsung S90H OLED Vision AI Smart 4K TV

Samsung S90H OLED 4K TV

Samsung S90H OLED Vision AI Smart 4K TV

4.8(1,500 ratings)
$897.99at AmazonChecked 22 h ago
See all prices and details
Visit Amazon

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

Pros
  • Anti-glare coating handles windows and lamps well
  • Slim, light design is easier to wall mount
  • Tizen with Gaming Hub and Samsung TV Plus is fast
  • Slightly higher owner rating in the sample
  • HDR10+ support for Samsung and Amazon content
Cons
  • No Dolby Vision, which matters for Netflix and Disney+ films
  • Only one HDMI 2.1 port limits multiple 120 Hz devices
  • No Google Assistant built in

What separates them

LG B5 OLED TVSamsung S90H OLED 4K TV
HDR formatsDolby Vision, HDR10, HLGHDR10, HLG, HDR10+; no Dolby Vision
HDMI 2.1 portsFour, all 4K/120One, typically; the rest are 2.0
Smart platformwebOS 25 with full app storeTizen with Samsung TV Plus and Gaming Hub
Screen coatingStandard glossy finishAnti-glare layer that cuts reflections
ProcessorAlpha 8 AI Processor Gen 2Samsung NQ4 AI Gen 2
Voice assistantsAlexa, Google Assistant, Siri via AirPlayBixby and Alexa built in; no Google Assistant
Build and weightHeavier, deeper chassisSlimmer and lighter at the same size
Gaming featuresGame Mode, VRR, ALLM, four 2.1 inputsMotion Xcelerator, VRR, Game Bar, one 2.1 input

Price history

$2,499.99$299.99
Oct 29Nov 10
  • LG B5 OLED TV: lowest $299.99 on Nov 6 at DoorDash; $299.99 on Nov 10.
  • Samsung S90H OLED 4K TV: lowest $897.99 on Nov 6; $897.99 on Nov 10.

Prices at every store

LG B5 OLED TV

  • mercari.comNew

    In stock

    $575.00Checked Nov 9
    Visit mercari.com
  • eBayNew

    In stockSold by wholesale_connection

    $899.99Free shippingChecked 15 h ago
    Visit eBay
  • Enervee CANew

    In stock

    $2,999.99Free shippingChecked Nov 8
    Visit Enervee CA
  • AmazonNew

    Availability unknown

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

    $899.99Free shippingChecked 6 h ago
    Visit Amazon

Also available at

  • Best BuyCheck price at Best Buy
  • NeweggCheck price at Newegg
  • eBayCheck price at eBay

Store links may earn us a commission.

All 6 stores and price history →

Samsung S90H OLED 4K TV

  • Best BuyNew

    In stock

    $1,397.99Free shippingChecked 22 h ago
    Visit Best Buy
  • Abt ElectronicsNew

    In stock

    $1,397.99Free shippingChecked 22 h ago
    Visit Abt Electronics
  • NeweggNew

    In stock

    $1,397.99Free shippingChecked 22 h ago
    Visit Newegg
  • AmazonNew

    Availability unknown

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

    $897.99Free shippingChecked 22 h ago
    Visit Amazon

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

All 8 stores and price history →

Specs compared

SpecLG B5 OLED TVSamsung S90H OLED 4K TV
Resolution3840 x 21603840 x 2160
High DefinitionYesYes
HDTV Format4K4K
ColorBlackBlack
Screen FormFlatFlat
Display TypeOLEDOLED
ConnectivityBluetooth, Wi-Fi, RF, USB, HDMI, EthernetBluetooth, Wi-Fi, USB, HDMI, Ethernet, Optical …
Weight51.8 lb18.3 lb
Assistant SupportGoogle Assistant, Amazon Alexa, Siri—
HDRYes—
Refresh Rate120 Hz—
Supported Streaming ServicesNetflix, Prime Video, YouTube, HBO, Disney+—
Show all 20 specsShow fewer specs
SpecLG B5 OLED TVSamsung S90H OLED 4K TV
Width67.7 in wide—
Screen Size77 inches—
Depth2 in deep—
HDMI Ports4 HDMI ports—
Display TechnologyN\A—
Maximum ResolutionN\A—
Display65-inch OLED—
SmartwebOS—

What reviewers say

LG B5 OLED TV

  • 4.7 / 54,200 ratings

With 4.7 out of 5 from about 4,200 ratings, owners are largely happy with the B5's picture and gaming features. Most praise comes from people stepping up from LED TVs. Complaints center on brightness in bright rooms and the step down from the C series.

What people mention
  • Picture qualityPraisedOwners say blacks are deep and colors look rich, especially in dim rooms.
  • BrightnessCriticisedReviewers say it struggles in bright, sunlit rooms compared with brighter OLEDs.
  • GamingPraisedBuyers like the 120Hz panel with VRR for consoles and PC.
  • ProcessorMixedSome say the Alpha 8 chip is fine, others notice weaker upscaling than the C series.

Samsung S90H OLED 4K TV

  • 4.8 / 51,500 ratings

Rated 4.8 out of 5 from 1,500 ratings, the S90H is received very well. Owners mostly praise the OLED picture and the value they got.

What people mention
  • Picture qualityPraisedOwners say the OLED panel gives deep blacks and rich color.
  • BrightnessMixedSome find it dimmer than expected in bright, sunlit rooms.
  • Burn-inCriticisedA few owners worry about static logos leaving marks over time.
  • DesignPraisedBuyers like the slim, light build and easy wall mounting.
Reviews
  • You can get an LG B5 OLED for less than $900

Questions and answers

Which is better for PS5 and Xbox Series X?
The LG B5. All four of its HDMI ports handle 4K at 120 Hz with VRR, so a console, a PC and a soundbar can stay connected. The Samsung S90H has one 2.1 port, so you will swap cables.
Does the Samsung S90H support Dolby Vision?
No. It supports HDR10, HLG and HDR10+. The LG B5 supports Dolby Vision, which most Netflix, Disney+ and HBO Max films use.
Which handles a bright room better?
The Samsung S90H. Its anti-glare coating cuts reflections from windows and lamps. The LG B5 has a glossier finish and shows more glare in a sunlit room.
Is the LG B5 worth stepping up to over the Samsung?
If you own more than one 120 Hz device or watch a lot of Dolby Vision content, yes. If you mostly stream in a bright room and use one console, the Samsung covers it.
Which lasts longer?
Both use OLED panels with similar lifespans and both carry manufacturer warranties. Panel care features on each reduce burn-in risk. Neither has a clear durability edge.
Do both work with Alexa and Google?
The LG B5 works with Alexa, Google Assistant and Apple Home. The Samsung S90H has Alexa and Bixby built in but no Google Assistant.

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