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LG OLED C5 Series 4K TV vs LG B6 OLED 65" 4K Smart TV

Both are LG OLEDs with perfect blacks, wide viewing angles and four HDMI 2.1 ports, so the picture quality is close. The C5 is the better gaming and movie set: 144Hz, Dolby Vision and HDR10+ support, and an anti-glare coating on a 55-inch panel. The B6 gives you a 65-inch screen, a newer a8 Gen3 processor and 40W 4.0-channel audio, but tops out at 120Hz and lacks HDR10+. Buy the C5 for a smaller room or a serious gaming setup; buy the B6 if screen size and built-in sound matter more than the extra refresh headroom.

  • Choose the LG C5 if you sit close, game at high frame rates, or watch in a room with windows and lamps that reflect.
  • Choose the LG B6 if you want the biggest OLED picture for the room and would rather not add a soundbar.

Prices

  • LG OLED C5 Series 4K TV: $895.99 at eBay (last seen Nov 9)
  • LG B6 OLED 65" 4K Smart TV: $1,199.99 at BrandsMart USA (last seen Nov 9)
  • Difference: the LG OLED C5 Series 4K TV is $304.00 cheaper than the LG B6 OLED 65" 4K Smart 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
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Visit eBay

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Pros
  • 144Hz panel suits fast PC and console games
  • Dolby Vision and HDR10+ cover more streaming formats
  • Anti-glare screen handles bright rooms better
  • Four HDMI 2.1 ports with VRR
Cons
  • Smaller 55-inch picture
  • No listed audio specs; a soundbar is likely needed
  • Older processor than the B6
LG
65" Class B6 Series OLED AI 4K Smart TV

LG B6 OLED 65" 4K Smart TV

65" Class B6 Series OLED AI 4K Smart TV

$1,199.99at BrandsMart USAChecked Nov 9
See all prices and details
Visit BrandsMart USA
Pros
  • 65-inch screen gives a noticeably bigger image
  • a8 Gen3 processor upscales and tunes picture automatically
  • 40W 4.0-channel sound is strong for a TV
  • Dolby Atmos and FILMMAKER MODE out of the box
Cons
  • 120Hz ceiling, not 144Hz
  • No HDR10+ support
  • No anti-glare coating listed

What separates them

LG OLED C5 Series 4K TVLG B6 OLED 65" 4K Smart TV
Screen size55 inches65 inches
Refresh rate144Hz120Hz
HDR formatsDolby Vision, HDR10+, HLGDolby Vision, HDR10, HLG
Anti-glare coatingYesNot specified
ProcessorNot specifieda8 AI Processor 4K Gen3
AudioNot specified40W, 4.0 channel
HDMI4 ports, HDMI 2.1 features, VRR4x HDMI 2.1, VRR, G-Sync, FreeSync Premium
Smart platformwebOS with Netflix, Disney+webOS 26

Price history

$1,299.99$949.95
Nov 2Nov 10
  • LG OLED C5 Series 4K TV: lowest $949.95 on Nov 9 at Amazon; $949.95 on Nov 10.
  • LG B6 OLED 65" 4K Smart TV: lowest $1,299.99 on Nov 2 at Amazon.

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 B6 OLED 65" 4K Smart TV

  • BrandsMart USANew

    In stockReturn policy

    $1,199.99Checked Nov 9
    Visit BrandsMart USA
  • AmazonNew

    Availability unknown

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

    $1,299.99Checked Nov 2
    Visit Amazon

Store links may earn us a commission.

All 2 stores and price history →

Specs compared

SpecLG OLED C5 Series 4K TVLG B6 OLED 65" 4K Smart TV
Display TypeOLEDOLED
Resolution4K3840 x 2160
Refresh Rate144Hz120Hz
HDMI Ports44x HDMI 2.1
Screen Size55 inches65"
HDR SupportDolby Vision, HDR10+, HLGDolby Vision, HDR10, HLG
Network FunctionalitySmart TV, Streaming—
Supported Resolutions4K—
HDTV Format4K UHD—
Backlight TechnologyOLED—
Display HighlightsHDR—
Anti-GlareYes—
Show all 38 specsShow fewer specs
SpecLG OLED C5 Series 4K TVLG B6 OLED 65" 4K Smart TV
Max Resolution V-SyncVRR—
Display Aspect Ratio16:9—
Dynamic Contrast RatioInfinite contrast—
Image Contrast RatioNear-infinite—
Viewing AngleWide—
Menu LanguageSpanish, English, French—
Color TemperatureYes—
Smart TVYes—
Internet Streaming ServicesNetflix, Disney+—

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 B6 OLED 65" 4K Smart TV

Owners of LG's B-series OLEDs generally praise the contrast, gaming features and value, and treat it as the sensible way into OLED. Complaints center on brightness in sunlit rooms, image retention risk and weak built-in audio.

What people mention
  • Picture qualityPraisedOwners say the self-lit OLED panel delivers deep blacks and rich color, especially in a dim room.
  • BrightnessCriticisedReviewers note the B6 is dimmer than Mini-LED and QD-OLED sets, so highlights wash out in bright rooms.
  • GamingPraisedThe 120Hz panel, HDMI 2.1 ports and VRR support are called out as strong for console gaming.
  • SoundCriticisedThe 40W speakers are described as thin, with most owners adding a soundbar.

Questions and answers

Which is better for gaming?
The C5. Its 144Hz panel beats the B6's 120Hz, and both have HDMI 2.1, VRR, G-Sync and FreeSync Premium. The gap only matters if your PC or console can push past 120 frames per second.
Is the bigger B6 worth stepping up to?
If you sit more than about 8 feet away, yes. The 65-inch panel fills more of your view, and the extra 10 inches is the main reason to pick it over the C5.
Which handles bright rooms better?
The C5 lists an anti-glare coating; the B6 does not. Both are OLED with wide viewing angles, so reflections are the deciding factor near windows.
Does the B6 sound better without a soundbar?
Yes. The B6 lists 40W across 4.0 channels with Dolby Atmos. The C5's audio specs are not published, so plan on a soundbar with it.
Which lasts longer?
Both use the same self-lit OLED panel technology and carry similar panel lifespans. The B6's newer processor may get software updates longer, but neither has a clear durability edge.
Do both support Dolby Vision?
Yes. Both handle Dolby Vision and HLG. Only the C5 adds HDR10+, which matters for some Amazon and Samsung-adjacent streaming content.

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Buying guides that pick them

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Network Connectivity
Ethernet
—
Video InterfaceHDMI—
PC InterfaceHDMI—
CEC EnabledYes—
Expansion SlotsCommon Interface (CI) slot—
Display Resolution4K UHD—
Smart Platform/OSWebOS—
Voice Assistant IntegrationAlexa (built-in)—
Additional Feature8.3 million self-lit pixels—
Feature 155"—
LightingOLED—
Smart TV software—webOS 26
Processor—a8 AI Processor 4K Gen3
Audio output—40W / 4.0ch
Wi-Fi—802.11.ac
Bluetooth—Yes
Dimensions without stand—1451 x 838 x 48.6mm 57.1” x 32.9” x 1.9”