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LG OLED55C66LB OLED evo C6 55" TV vs LG C6 OLED evo 4K TV

Both are the same 2026 LG C6 OLED evo set with the Alpha 11 Gen3 processor, webOS 26, four HDMI 2.1 ports and 165Hz VRR gaming. The real difference is size: the 55-inch C6 suits a small room or a close seat, while the 65-inch C6 gives a noticeably bigger picture for a living room. Owners rate the C6 line highly for contrast and gaming, and the 65-inch carries a 4.8 out of 5 from 166 ratings. Buy the 65-inch unless your wall or seating distance can't take it.

  • Choose the LG 55-inch C6 if your room is small or your seat is close, and a 55-inch screen already fills your view.
  • Choose the LG 65-inch C6 if you have the wall space and sit far enough back that the bigger picture is worth the extra bulk.

Prices

  • LG OLED55C66LB OLED evo C6 55" TV: $607.00 at waxvinylcartel (checked today)
  • LG C6 OLED evo 4K TV: $1,199.00 at Greentoe (last seen Nov 10)
  • Difference: the LG OLED55C66LB OLED evo C6 55" TV is $592.00 cheaper than the LG C6 OLED evo 4K TV at the latest prices (Nov 10 and Nov 14)
LG
LG OLED55C66LB 55 Inch OLED evo AI C6 4K Ultra HD HDR Smart TV 2026

LG OLED55C66LB OLED evo C6 55" TV

LG OLED55C66LB 55 Inch OLED evo AI C6 4K Ultra HD HDR Smart TV 2026

$607.00at waxvinylcartelChecked 3 min ago
See all prices and details
Visit waxvinylcartel
Pros
  • Fits small rooms and close seating
  • Light at 14.1 kg, easier to wall-mount alone
  • Same OLED evo panel and Alpha 11 Gen3 chip as the larger set
  • 120Hz native with VRR up to 165Hz for gaming
Cons
  • Smaller picture at the same seating distance
  • No owner rating shown for this listing
  • 40W 2.2 audio is modest without a soundbar
LG
LG 65 inch OLED evo AI C6 4K Smart webOS TV (2026)

LG C6 OLED evo 4K TV

LG 65 inch OLED evo AI C6 4K Smart webOS TV (2026)

4.8(166 ratings)
$1,199.00at GreentoeChecked Nov 10
See all prices and details
Visit Greentoe
Pros
  • Bigger 65-inch picture for a living room
  • Rated 4.8 out of 5 by 166 owners
  • Dolby Vision and Dolby Atmos support
  • Four HDMI 2.1 ports with G-Sync and FreeSync Premium
Cons
  • Heavier at about 15.9 kg, so mounting is a two-person job
  • Needs more wall space and a longer viewing distance
  • Bigger screen shows more of a poor source's flaws

What separates them

LG OLED55C66LB OLED evo C6 55" TVLG C6 OLED evo 4K TV
Screen size55 inches65 inches
Panel and processorOLED evo with Alpha 11 AI Gen3OLED evo with Alpha 11 AI Gen3
Refresh rate and VRR120Hz native, VRR up to 165HzUp to 165Hz, G-Sync and FreeSync Premium
HDR formats4K HDR supportDolby Vision, HDR10, HLG
Audio40W 2.2 channelDolby Atmos
Ports4 HDMI, 2 USB4 HDMI 2.1
Weight14.1 kg without stand35.1 lb (about 15.9 kg)
Owner ratingsNo rating shown4.8 out of 5 from 166 ratings

Price history

$1,399.99$949.99
Oct 30Nov 14
  • LG C6 OLED evo 4K TV: lowest $949.99 on Nov 2 at The Home Depot; $1,339.99 on Nov 14.

Prices at every store

LG OLED55C66LB OLED evo C6 55" TV

  • waxvinylcartelNew

    In stockShips from the UK · duties may applyReturn policy

    $607.00Checked 3 min ago
    Visit waxvinylcartel
Prices and history →

LG C6 OLED evo 4K TV

  • GreentoeNew

    In stock

    $1,199.00Free shippingChecked Nov 10
    Visit Greentoe
  • Best BuyNew

    In stock

    $1,399.99Free shippingChecked 45 min ago
    Visit Best Buy
  • AmazonNew

    Availability unknown

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

    $1,339.99Free shippingChecked 45 min ago
    Visit Amazon
  • B&H Photo-Video-AudioNew

    Availability unknown

    $1,399.99Checked 45 min ago
    Visit B&H Photo-Video-Audio

Also available at

  • Beach CameraCheck price at Beach Camera
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All 25 stores and price history →

Specs compared

SpecLG OLED55C66LB OLED evo C6 55" TVLG C6 OLED evo 4K TV
Screen size55 in55 inches
Display type4K OLEDOLED
Refresh rate120Hz Native (VRR 165Hz)Up to 165Hz
HDMI ports44 HDMI ports
Weight14.1 kg35.1 lb
Display resolution4K Ultra HD (3,840 x 2,160)—
Picture processorAlpha 11 AI Processor 4K Gen3 with Dual AI Engi…—
Audio output40W—
Speaker system2.2 channel—
Operating systemwebOS 26—
USB ports2—
Dimensions without stand70.3cm x 136cm x 4.51cm—
Show all 40 specsShow fewer specs
SpecLG OLED55C66LB OLED evo C6 55" TVLG C6 OLED evo 4K TV
Display size—42 to 83 inches
HDR—Dolby Vision
Audio—Dolby Atmos
VRR support—Nvidia G-Sync, AMD FreeSync Premium
Voice controls—Alexa, Apple Homekit, Hey Google
Ports—4x HDMI 2.1
Resolution—3,840 x 2,160p
Smart TV software—webOS 26
Processor—a11 AI Processor 4K Gen3
High Definition

What reviewers say

LG C6 OLED evo 4K TV

  • 4.8 / 5166 ratings

Owners rate the C6 highly at 4.8 out of 5 from 166 ratings, praising its picture and gaming features. Some note brightness limits and the need for a soundbar.

What people mention
  • Picture qualityPraisedOwners say blacks are deep and colors look rich.
  • BrightnessMixedBrightness Booster helps, but some find it dimmer than expected in sunny rooms.
  • GamingPraisedLow response time and VRR are called smooth for consoles and PC.
  • SoundCriticisedBuilt-in speakers are described as thin, pushing buyers to add a soundbar.

Questions and answers

Which is better for a small room?
The 55-inch. At close range a 65-inch can feel overwhelming, and the 55-inch keeps the same OLED evo panel and processor.
Which is better for gaming?
They are effectively equal. Both run 120Hz native with VRR up to 165Hz, four HDMI 2.1 ports and G-Sync plus FreeSync Premium on the C6 line.
Is the 65-inch worth stepping up to?
If your seating distance allows it, yes. You get a much larger picture, Dolby Vision and Atmos, and a strong 4.8 out of 5 owner rating.
Do they have the same picture quality?
Yes. Both use the OLED evo panel and Alpha 11 AI Processor Gen3, so contrast, color and upscaling are the same. Only size and the larger set's HDR and audio spec differ.
Which lasts longer?
Neither is meaningfully more durable. OLED panels age with use, and both sets carry the same panel generation, so lifespan depends on brightness settings and content, not screen size.
Will I need a soundbar with either?
The 55-inch has 40W 2.2 audio, which is fine for everyday viewing. The 65-inch adds Dolby Atmos, but a soundbar still improves both for films.

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Buying guides that pick them

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Yes
HDTV Format—4K
Connectivity—Bluetooth, Wi-Fi
Viewing Angle—178° viewing angle
Color—Black
Screen Form—Flat
Assistant Support—Siri
Supported Streaming Services—Netflix, Prime Video, YouTube, HBO, Disney+
Width—48.1 in wide
Depth—1.8 in deep
Screen Size Class—65 inches
High Dynamic Range (HDR)—true
High Dynamic Range Format—Dolby Vision, HDR 10, Hybrid Log-Gamma (HLG)
OLED Technology—OLED EVO
Motion Enhancement Technology—OLED Motion
Smart Platform—webOS
Featured Streaming Services—Netflix, HBO Max, Disney+, YouTube, Prime Video…
Number of HDMI Inputs (Total)—4
TV Tuner Type—ATSC, Clear QAM
  • Best OLED TVs under $1,500 for living rooms
  • Best 65-inch OLED 4K smart TVs
  • Best OLED TVs under $1500 for living rooms