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Deal.ai › Compare

LG OLED42C6PUA 42" OLED evo C6 vs LG OLED B4 Series 4K Smart TV

Buy the C6 if you want the best picture and gaming features in a smaller room, or if you sit close and want a 42-inch OLED. Buy the B4 if you want the most screen for the space you have and mostly watch movies and shows. The C6 has the brighter evo panel, the newer a11 Gen3 processor, webOS 26 with Gemini and Copilot, and gaming up to 165Hz with G-Sync and FreeSync Premium. The B4 uses the older a8 processor and caps at 120Hz, but it comes in sizes up to 83 inches and still has four HDMI 2.1 ports.

  • Choose the LG C6 if you want the sharpest OLED picture in a compact size, top-tier gaming features, and the newest smart platform.
  • Choose the LG B4 if you need a bigger screen for a living room and want solid OLED picture and gaming features without stepping up to the C series.

Prices

  • LG OLED42C6PUA 42" OLED evo C6: $899.99 at World Wide Stereo (checked today)
  • LG OLED B4 Series 4K Smart TV: $930.95 at JourneyEd (last seen Nov 10)
  • Difference: the LG OLED42C6PUA 42" OLED evo C6 is $30.96 cheaper than the LG OLED B4 Series 4K Smart TV at the latest prices (Nov 10 and Nov 11)
LG
LG OLED42C6PUA 42" OLED evo AI C6 4K Smart TV

LG OLED42C6PUA 42" OLED evo C6

LG OLED42C6PUA 42" OLED evo AI C6 4K Smart TV

$899.99at World Wide StereoChecked 4 h ago
See all prices and details
Visit World Wide Stereo
Pros
  • Bright evo panel with strong contrast in lit rooms
  • 165Hz VRR, G-Sync and FreeSync Premium for gaming
  • Newest a11 Gen3 processor and webOS 26
  • Dolby Vision, Dolby Atmos and FILMMAKER MODE
Cons
  • Only one size, 42 inches
  • Wi-Fi 5, not Wi-Fi 6
  • Small screen for a main living room
LG
LG OLED B4 Series 55" 4K Smart TV (OLED55B4PUA)

LG OLED B4 Series 4K Smart TV

LG OLED B4 Series 55" 4K Smart TV (OLED55B4PUA)

$930.95at JourneyEdChecked Nov 10
See all prices and details
Visit JourneyEd
Pros
  • Comes in sizes from 48 to 83 inches
  • Four HDMI 2.1 ports for consoles and PCs
  • 120Hz with G-Sync, FreeSync Premium and VRR
  • Dolby Vision and Dolby Atmos
Cons
  • Older a8 processor and dimmer panel than the C series
  • Caps at 120Hz, no 165Hz mode
  • Fewer AI picture features

What separates them

LG OLED42C6PUA 42" OLED evo C6LG OLED B4 Series 4K Smart TV
PanelOLED evo with Brightness BoosterOLED evo
Processora11 AI Processor 4K Gen3a8 AI Processor 4K
Native refresh rate120Hz, VRR up to 165Hz120Hz
Screen sizes42 inches only48 to 83 inches
Smart platformwebOS 26 with Gemini and CopilotwebOS with Google Assistant, Alexa and Siri
HDRDolby Vision, HDR10, HLGDolby Vision, HDR10, HLG
HDMI4 ports4 HDMI 2.1 ports
Wi-FiWi-Fi 5Wi-Fi 5

Price history

$2,550.99$359.87
Oct 30Nov 11
  • LG OLED42C6PUA 42" OLED evo C6: lowest $1,049.99 on Oct 31 at Lowe's; $1,081.49 on Nov 2.
  • LG OLED B4 Series 4K Smart TV: lowest $359.87 on Nov 8 at Walmart; $999.99 on Nov 11.

Prices at every store

LG OLED42C6PUA 42" OLED evo C6

  • World Wide StereoNew

    In stockReturn policy

    $899.99Checked 4 h ago
    Visit World Wide Stereo
  • AmazonNew

    Availability unknown

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

    $1,049.99Checked Oct 31
    Visit Amazon
  • Lowe'sNew

    Availability unknown

    $1,049.99Checked Oct 30
    Visit Lowe's
  • Best BuyNew

    Availability unknown

    $1,049.99Checked Oct 30
    Visit Best Buy

Also available at

  • ListenUpCheck price at ListenUp

Store links may earn us a commission.

All 9 stores and price history →

LG OLED B4 Series 4K Smart TV

  • JourneyEdNew

    In stock

    $930.95Checked Nov 10
    Visit JourneyEd
  • NeweggNew

    In stock

    $999.99Free shippingChecked 3 h ago
    Visit Newegg
  • Afri GeneralNew

    In stock

    $1,280.00Checked Nov 8
    Visit Afri General
  • JourneyEdNew

    Availability unknown

    $930.95Checked Nov 2
    Visit JourneyEd

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

All 9 stores and price history →

Specs compared

SpecLG OLED42C6PUA 42" OLED evo C6LG OLED B4 Series 4K Smart TV
Screen Size41.5"48 inches, 55 inches, 65 inches, 77 inches, 83 …
Refresh Rate120Hz120 Hz
Display TypeOLEDOLED
HDMI Ports44 HDMI ports
Resolution3840 x 21603840 x 2160
High DefinitionYesYes
HDTV Format4K4K
ColorBlackBlack
Screen FormFlatFlat
Assistant SupportSiriGoogle Assistant, Amazon Alexa, Siri
HDRYesYes
ConnectivityBluetooth, Wi-Fi, USB, HDMI, Ethernet, Optical …Bluetooth, Wi-Fi, USB, HDMI, Ethernet
Show all 29 specsShow fewer specs
SpecLG OLED42C6PUA 42" OLED evo C6LG OLED B4 Series 4K Smart TV
Supported Streaming ServicesNetflix, Prime Video, YouTube, HBO, Disney+Netflix, YouTube
Width48.1 in wide48.4 in wide
Depth1.8 in deep1.8 in deep
Weight36.6 lb, 45 lb, 47 lb31.5 lb, 37.7 lb, 38.1 lb, 51.8 lb, 71.2 lb
Native Resolution3840x2160—
Response Time0.1ms—
Aspect Ratio16:9—
Processora11 AI Processor 4K Gen3—
Smart PlatformWebOS 26—

What reviewers say

LG OLED42C6PUA 42" OLED evo C6

Buyers describe the C6 as easy to set up and praise its crisp, clear sound across streaming services. They also like that friends can stream to it, which makes it good for parties.

What people mention
  • SetupPraisedOwners say the TV is super easy to set up.
  • SoundPraisedBuyers call the sound outstanding, crisp and clear across streaming services.
  • CastingPraisedFriends can stream to it easily, which owners say is great for parties.
  • BassCriticisedThe built-in speakers are short on low-end punch.

LG OLED B4 Series 4K Smart TV

Owners of the B4 generally praise the picture for the money, calling it the cheapest way into a good OLED. Complaints center on brightness in sunny rooms and on the stand and sound.

What people mention
  • Picture qualityPraisedOwners say blacks are deep and colors pop, especially in a dark room.
  • BrightnessCriticisedReviewers note it struggles in bright, sunlit rooms compared with brighter OLEDs.
  • GamingPraised120 Hz and low input lag make it a popular pick for consoles.
  • SoundCriticisedThe built-in speakers are described as thin, and many buyers add a soundbar.

Questions and answers

Which is better for gaming?
The C6. It reaches 165Hz VRR with G-Sync and FreeSync Premium and has the faster processor. The B4 is still a good gaming TV at 120Hz with four HDMI 2.1 ports.
Which has the better picture?
The C6. Its evo panel with Brightness Booster is brighter, and the a11 Gen3 processor handles upscaling and HDR better. The B4 is still a true OLED with perfect blacks.
Is the C6 worth stepping up to over the B4?
Yes if you want the brightest picture, the newest smart features and the fastest gaming mode. No if you need a screen bigger than 42 inches, since the C6 does not come larger.
Which lasts longer?
Both use OLED panels with similar lifespans and both include OLED care features. Neither has a clear edge; panel size and how you use the TV matter more than the model.
Can I use either with a soundbar and consoles?
Yes. Both have four HDMI ports, optical audio, Bluetooth and Ethernet. The B4's HDMI ports are all 2.1, which helps if you connect several 4K 120Hz devices.
Which is better for a bright room?
The C6. Its evo panel with Brightness Booster holds up better in daylight. The B4 is dimmer, so a darker room suits it better.

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Buying guides that pick them

  • Best 42-43 inch OLED TVs under $1,500
USB Ports
2
—
Wi-Fi VersionWi-Fi 5—
Bluetooth Versionv5.3—
CEC Enabled—Yes
Screen Resolution—3840x2160 (4K Ultra HD)
Smart TV—Yes
Release Year—2026
Display—OLED evo