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LG B6E Series OLED 4K Smart TV vs LG B5 OLED

The main difference is size, not generation. The 55-inch B6E is a 2026 OLED at $799.99 at Best Buy as of November 7, 2026, and it dipped to $669.99 on October 29. The 77-inch B5 is $1,449.99 as of October 28, 2026. Buy the B6E for a normal living room or bedroom on a tighter budget; buy the B5 only if you sit far enough back to justify 77 inches.

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LG
LG 55" Class B6E Series OLED AI 4K Smart webOS TV

LG B6E Series OLED 4K Smart TV

LG 55" Class B6E Series OLED AI 4K Smart webOS TV

4.8(116 ratings)
$799.99at Best BuyObserved at 10:01 AM
See all prices and details
Visit Best Buy

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

Choose the 55-inch B6E if you want a current-generation OLED with G-Sync, FreeSync Premium and Dolby Vision at under $800.

Pros
  • OLED contrast with over 8.3 million self-lit pixels
  • 120Hz with G-Sync and FreeSync Premium for PC and console gaming
  • Dolby Vision and Dolby Atmos support
  • Four HDMI inputs, plus 400+ free LG Channels
  • Price fell to $669.99 on October 29, 2026
Cons
  • 55 inches is small for a large room
  • No built-in voice assistant; needs a speaker or phone
  • Peak brightness is lower than LG's G-series panels
LG
LG B5 OLED

LG B5 OLED

See all prices and details

Choose the 77-inch B5 if your seating distance is 9 feet or more and you want the biggest OLED screen for the money.

Pros
  • 77-inch OLED gives a much bigger picture
  • Reviewers praise picture quality, glare handling and value
  • 120Hz panel with four HDMI 2.1 ports
  • Dolby Vision and Dolby Atmos support
  • Works with Alexa, Google Assistant and Siri
Cons
  • $1,449.99 costs about $650 more than the B6E
  • Reviewers report Wi-Fi drops and slow smart features
  • No G-Sync or FreeSync listed
  • HDR10 and HGiG only, no Dolby Vision in the listed specs
  • 50.5 lbs needs a sturdy wall mount or stand

What separates them

LG B6E Series OLED 4K Smart TVLG B5 OLED
Screen size55 inches77 inches
Price$799.99 at Best Buy as of November 7, 2026$1,449.99 as of October 28, 2026
Model year2026 (B6E series)2025 (B5 series)
HDR formatsDolby Vision, HDR10, HLGHDR10, HGiG
Gaming syncNVIDIA G-Sync and AMD FreeSync Premium120Hz panel with HDMI 2.1, no sync tech listed
Smart platform speedwebOS with Google Gemini built inwebOS; reviewers report slow smart features
Voice assistantsGoogle Assistant, works with Google Home and Apple HomeAlexa, Google Assistant, Siri
Room fitSmaller rooms and closer seatingLarge rooms with long viewing distance

Price history

$1,449.99$669.99
Oct 27Nov 7
  • LG B6E Series OLED 4K Smart TV: lowest $669.99 on Oct 29 at ZEXRI; $799.99 on Nov 7.
  • LG B5 OLED: lowest $1,449.99 on Oct 28; $1,449.99 on Oct 30.

Prices at every store

LG B6E Series OLED 4K Smart TV

  • Best BuyNew

    In stock

    $799.99Free shippingObserved at 10:01 AM
    Visit Best Buy
  • Enervee NYNew

    In stock

    $799.99Free shippingObserved at 1:25 AM
    Visit Enervee NY

Also available at

  • eBayCheck price at eBay
  • BJ's Wholesale ClubCheck price at BJ's Wholesale Club
  • ZEXRICheck price at ZEXRI

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

All 2 stores and price history →

LG B5 OLED

  • Best BuyCheck price at Best Buy
Prices and history →

Specs compared

SpecLG B6E Series OLED 4K Smart TVLG B5 OLED
Resolution3840 x 21604K UHD
High DefinitionYesYes
HDTV Format4K4K
ColorBlackBlack
Screen FormFlatFlat
Display TypeOLEDOLED
Assistant SupportGoogle AssistantGoogle Assistant, Amazon Alexa, Siri
HDRYesYes
Refresh Rate120 Hz120 Hz
ConnectivityBluetooth, Wi-Fi, USBBluetooth, Wi-Fi, RF, USB, HDMI, Ethernet
Supported Streaming ServicesNetflix, Prime Video, YouTube, HBO, Disney+Netflix, Prime Video, YouTube, HBO, Disney+
Width42.1 in wide67.7 in wide
Show all 40 specsShow fewer specs
SpecLG B6E Series OLED 4K Smart TVLG B5 OLED
Screen Size55 inches77"
Depth1.8 in deep2 in deep
High Dynamic Range FormatDolby Vision, HDR 10, Hybrid Log-Gamma (HLG)HDR Gaming Interest Group (HGiG), HDR10
BrandLGLG
Weight51.4 lb, 53.8 lb51.8 lb
Screen Size Class55 inches—
High Dynamic Range (HDR)true—
OLED TechnologyStandard OLED—
Motion Enhancement TechnologyOLED Motion—

What reviewers say

LG B6E Series OLED 4K Smart TV

  • 4.8 / 5116 ratings

Rated 4.8 out of 5 from 116 ratings, the B6E is well received. Owners focus on picture quality and gaming features rather than smart-platform extras.

What people mention
  • Picture qualityPraisedOwners praise the deep blacks and contrast that OLED provides.
  • GamingPraisedThe 120Hz panel with VRR support is called smooth for console gaming.
  • BrightnessCriticisedSome say the screen struggles in bright, sunlit rooms.
  • Burn-inMixedBuyers mention image retention as a concern with static logos and tickers.

LG B5 OLED

Reviewers rate the B5 highly for picture quality, features and value, and several say brightness worries from comparisons did not bother them in practice. A few report the TV dropping its internet connection and running slowly even when connected.

What people mention
  • Picture qualityPraisedOwners call the OLED image excellent, with brightness and glare handling better in real rooms than comparisons suggested.
  • Gaming featuresPraisedThe 120 Hz panel and four HDMI 2.1 ports are singled out as a strong match for current consoles.
  • ValuePraisedReviewers see the B5 as a good price for an entry-level OLED of this size.
  • ConnectivityCriticisedA few owners report the TV dropping its Wi-Fi connection.
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
  • You can buy the 77-inch LG B5 OLED for 50% off right now, and I highly recommend it - ZDNET

Questions and answers

Which is better for gaming?
The B6E. It has a 120Hz panel with G-Sync and FreeSync Premium and a 0.1ms response time. The B5 also runs 120Hz with HDMI 2.1, but no variable refresh sync tech is listed.
Is the 77-inch B5 worth the extra money?
Only if size matters more than price. At $1,449.99 it costs about $650 more than the $799.99 B6E. If you sit 9 feet or more from the screen, the extra 22 inches is a real gain.
Which has better picture quality?
Both are OLED, so black levels and contrast are close. The B6E adds Dolby Vision and a newer α8 AI Processor 4K Gen3. The B5 wins on sheer screen area, not on per-pixel quality.
Which is better in a bright room?
Reviewers say the B5 handles daylight and glare well despite brightness concerns in comparisons. The B6E uses standard OLED, not the brighter panel from LG's G series. Neither is a match for a bright LCD.
Which lasts longer?
Neither has a published lifespan advantage. Both are OLED panels from LG Display. Buy an extended warranty if burn-in worries you, since static logos and news tickers are the main risk on either.
Do both support Dolby Vision?
The B6E lists Dolby Vision, HDR10 and HLG. The B5's listed specs show HDR10 and HGiG only. Check the exact B5 model page before you buy if Dolby Vision matters to you.

More comparisons

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  • LG G5 vs LG B5 OLED
  • LG C5 vs LG 55" Class B6E Series OLED AI 4K Smart webOS TV
  • LG 65" OLED EVO 4K AI SMART TV vs LG 55" Class B6E Series OLED AI 4K Smart webOS TV

Buying guides that pick them

  • Best OLED TVs under $1500
  • Best LG OLED TVs under $1,000
  • Best OLED TVs under $1,500 for movies
Smart Platform
webOS
—
Featured Streaming ServicesNetflix, HBO Max, Disney+, YouTube, Prime Video…—
Number of HDMI Inputs (Total)4—
TV Tuner TypeATSC, Clear QAM—
Works WithGoogle Home, Apple Home—
Voice Assistant Built-inNo—
Model NumberOLED55B6EUA—
SeriesOLED - B6E series—
Model Year2026—
Product Height With Stand30.6 inches—
Product Width48.35 inches—
Product Depth With Stand8.6 inches—
Product Height Without Stand27.9 inches—
Product Depth Without Stand1.8 inches—
Stand Width42.1 inches—
Display—OLED
Television type—Smart TVs
Smart tech—Y
Tv features—Wi-Fi Direct, Bluetooth, High Dynamic Range