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LG OLED C5 Series 4K TV vs LG B3 Series OLED TV

The LG C5 is the newer, brighter OLED with a 144Hz panel, four HDMI 2.1 ports and Dolby Vision plus HDR10+ support, which makes it the stronger pick for gamers and for a bright room. The B3 is an older-generation OLED at 120Hz with three HDMI 2.1 ports and no HDR10+, but it delivers the same deep blacks and wide viewing angles that make OLED worth owning. Reviewers and owners praise both for picture quality and criticize OLED's brightness limits and burn-in risk; the C5 is the safer long-term buy, the B3 the sensible choice if you mainly watch film and stream.

  • Choose the LG C5 if you game at high frame rates, want the brightest OLED LG makes at this size, or need four full-bandwidth HDMI 2.1 inputs.
  • Choose the LG B3 if you mostly watch movies and shows, sit off-axis, and want OLED contrast without paying for features you won't use.

Prices

  • LG OLED C5 Series 4K TV: $895.99 at eBay (last seen Nov 9)
  • LG B3 Series OLED TV: $1,525.95 at JourneyEd (last seen Nov 9)
  • Difference: the LG OLED C5 Series 4K TV is $629.96 cheaper than the LG B3 Series OLED TV at the latest prices (Nov 9)
LG
LG 55-Inch OLED C5 Series

LG OLED C5 Series 4K TV

LG 55-Inch OLED C5 Series

$895.99at eBayChecked Nov 9
See all prices and details
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Pros
  • 144Hz panel with VRR suits fast console and PC gaming
  • Four HDMI 2.1 ports cover a console, PC and soundbar at once
  • Dolby Vision and HDR10+ both supported
  • Brighter OLED evo panel holds up better in a lit room
  • Anti-glare coating cuts reflections
Cons
  • Only one screen size offered here
  • OLED still trails bright LCDs in a sunlit room
  • Burn-in risk remains for static news tickers and HUDs
  • Higher step-up cost than the older B3
LG
LG Class 4K UHD OLED Smart TV B3 Series

LG B3 Series OLED TV

LG Class 4K UHD OLED Smart TV B3 Series

4.6(1,600 ratings)
$1,525.95at JourneyEdChecked Nov 9
See all prices and details
Visit JourneyEd
Pros
  • Same OLED contrast and wide viewing angles
  • Available in 55, 65 and 77 inches
  • Works with Google Assistant, Alexa and Siri
  • 120Hz with VRR is fine for most console games
  • Well reviewed: 4.6 out of 5 from 1,600 ratings
Cons
  • No HDR10+ support
  • Three HDMI 2.1 ports, one short for a full setup
  • Older, dimmer panel than the C5
  • Alpha 7 processor upscales low-quality video less cleanly

What separates them

LG OLED C5 Series 4K TVLG B3 Series OLED TV
Refresh rate144Hz native, with VRR support120Hz native
HDR formatsDolby Vision, HDR10+, HLGDolby Vision and HDR10, no HDR10+
HDMI 2.1 portsFour, all rated for 4K at 120Hz and beyondThree, one fewer for consoles and soundbars
Panel generation2025 OLED evo panel, higher peak brightness2023 OLED panel, dimmer in highlights
Processor and upscalingAlpha 9 Gen 8 with better low-bitrate cleanupAlpha 7 Gen 6, adequate but softer on poor sources
Voice assistantsLG ThinQ and Alexa built inGoogle Assistant, Alexa and Siri via AirPlay and HomeKit
Screen sizes55 inches in this listing55, 65 and 77 inches
Anti-glare coatingYes, matte treatment reduces reflectionsStandard glossy OLED finish

Price history

$1,039.99$949.95
Nov 4Nov 10
  • LG OLED C5 Series 4K TV: lowest $949.95 on Nov 9 at Amazon; $949.95 on Nov 10.
  • LG B3 Series OLED TV: lowest $1,039.99 on Nov 9.

Prices at every store

LG OLED C5 Series 4K TV

  • eBayNew

    Availability unknownSold by grenadeaudio (92.3% positive, 37 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $895.99Free shippingChecked Nov 9
    Visit eBay
  • AmazonNew

    Availability unknown

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

    $949.95Free shippingChecked Nov 10
    Visit Amazon
  • B&H Photo-Video-AudioNew

    Availability unknown

    $949.95Checked Nov 9
    Visit B&H Photo-Video-Audio
  • AmazonNew

    Availability unknown

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

    $959.95Checked Nov 4
    Visit Amazon

Store links may earn us a commission.

All 6 stores and price history →

LG B3 Series OLED TV

  • eBayPre-owned

    In stockSold by masspcparts

    $1,168.00Checked Nov 9
    Visit eBay
  • JourneyEdNew

    In stock

    $1,525.95Checked Nov 9
    Visit JourneyEd

Also available at

  • eBayCheck price at eBay

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All 2 stores and price history →

Specs compared

SpecLG OLED C5 Series 4K TVLG B3 Series OLED TV
Display TypeOLEDOLED
Resolution4K3840 x 2160
HDTV Format4K UHD4K
Refresh Rate144Hz120 Hz
Screen Size55 inches55 inches, 65 inches, 77 inches
Network FunctionalitySmart TV, Streaming—
Supported Resolutions4K—
Backlight TechnologyOLED—
Display HighlightsHDR—
Anti-GlareYes—
Max Resolution V-SyncVRR—
Display Aspect Ratio16:9—
Show all 39 specsShow fewer specs
SpecLG OLED C5 Series 4K TVLG B3 Series OLED TV
Dynamic Contrast RatioInfinite contrast—
Image Contrast RatioNear-infinite—
Viewing AngleWide—
Menu LanguageSpanish, English, French—
Color TemperatureYes—
Smart TVYes—
HDMI Ports4—
Internet Streaming ServicesNetflix, Disney+—
Network ConnectivityEthernet—
Video Interface

What reviewers say

LG OLED C5 Series 4K TV

Owners and reviewers treat the C5 as a safe pick for picture quality and gaming features, with brightness the usual reservation. Most criticism centers on how it compares to brighter, pricier OLEDs rather than on defects.

What people mention
  • Picture qualityPraisedOwners describe deep blacks and clean contrast, especially in dark rooms.
  • BrightnessMixedReviewers say it is bright enough for most rooms but dimmer than the G5 and high-end Mini-LED sets.
  • GamingPraisedLow lag, 144Hz and VRR are called out as reasons to buy for consoles and PC.
  • Burn-inCriticisedSome owners worry about static logos and tickers during long news or sports viewing.

LG B3 Series OLED TV

  • 4.6 / 51,600 ratings

Owners and reviewers rate the B3 around 4.6 out of 5, praising its OLED contrast, gaming features and value against the C-series. Common complaints are lower brightness than step-up LG models and weaker upscaling of standard-definition content.

What people mention
  • Picture qualityPraisedOwners say the per-pixel contrast and black levels look excellent, especially in dark rooms.
  • BrightnessCriticisedReviewers note it peaks lower than LG's C-series, so HDR highlights and bright rooms are less impressive.
  • GamingPraisedThe 120 Hz panel, VRR and four HDMI 2.1 ports are called out as strong for consoles.

Questions and answers

Which is better for gaming, the C5 or the B3?
The C5. Its 144Hz panel, four HDMI 2.1 ports and VRR handling give it more headroom for a PS5, Xbox Series X or a gaming PC. The B3's 120Hz is enough for console play but leaves less room for multiple devices.
Is the C5 worth stepping up to over the B3?
Yes if you game, watch in a bright room, or want HDR10+ and a fourth HDMI 2.1 port. If you mostly stream films in a dim room, the B3's OLED picture is close enough that the step up buys features more than image quality.
Which lasts longer?
Neither has a fixed lifespan, but the C5's newer panel and processor are likely to stay current longer for gaming features and app support. OLED burn-in depends on what you watch; both benefit from varied content and screen-shift settings.
Do both handle Dolby Vision?
Yes. Both support Dolby Vision and HLG. Only the C5 adds HDR10+, which matters for some streaming and disc content.
Which is better in a bright room?
The C5. Its OLED evo panel is brighter and it has an anti-glare coating. The B3 is dimmer and more reflective, so a sunny room will wash out highlights more.
Can I get a bigger screen on either?
The B3 comes in 55, 65 and 77 inches. The C5 listing here is 55 inches, so if you want a larger OLED, the B3 gives you more size options.

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Buying guides that pick them

  • Best value 55-inch OLED TVs
HDMI
—
PC InterfaceHDMI—
CEC EnabledYes—
Expansion SlotsCommon Interface (CI) slot—
Display Resolution4K UHD—
HDR SupportDolby Vision, HDR10+, HLG—
Smart Platform/OSWebOS—
Voice Assistant IntegrationAlexa (built-in)—
Additional Feature8.3 million self-lit pixels—
Feature 155"—
LightingOLED—
High Definition—Yes
Color—Black
Screen Form—Flat
Assistant Support—Google Assistant, Amazon Alexa, Siri
Connectivity—Bluetooth, Wi-Fi, HDMI
Supported Streaming Services—Netflix, Prime Video, Disney+
Weight—41.7 lb, 52.9 lb, 58.9 lb
  • UpscalingMixedLow-resolution cable and older content look softer than on step-up LG models.