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LG C6 Series OLED TV vs LG OLED evo C4 42-inch TV

The C6 is the newer set and the better buy for gamers and anyone who wants the longest software support. It adds a 165Hz panel, 0.1ms response time and webOS 26, while the C4 tops out at 120Hz on webOS 24. Both are 42-inch OLED evo sets with four HDMI 2.1 ports, G-SYNC, FreeSync Premium, VRR, Dolby Vision and Dolby Atmos, so picture quality is close. Owners rate both highly, though the C6 has far more ratings behind its score. The C4 remains a solid set if you find it and don't need the higher refresh rate.

  • Choose the LG C6 if you play fast games on a PC or console and want the higher 165Hz refresh rate, lower response time and newer webOS with longer update support.
  • Choose the LG C4 if you mainly watch movies and stream, don't need more than 120Hz, and want the proven C4 that reviewers have tested for longer.

Prices

  • LG C6 Series OLED TV: $899.99 at Walmart (last seen Nov 9)
  • LG OLED evo C4 42-inch TV: $817.53 at Best Buy (last seen Nov 2)
  • Difference: the LG OLED evo C4 42-inch TV is $82.46 cheaper than the LG C6 Series OLED TV at the latest prices (Nov 2 and Nov 9)
LG
LG 42" C6 Series 4K UHD OLED AI Smart webOS 26 TV

LG C6 Series OLED TV

LG 42" C6 Series 4K UHD OLED AI Smart webOS 26 TV

4.8(2,339 ratings)
$899.99at WalmartChecked 22 h ago
See all prices and details
Visit Walmart
Pros
  • 165Hz refresh rate suits high-frame-rate PC gaming
  • 0.1ms response time reduces motion blur
  • Newer webOS 26 with AI features
  • Large base of owner ratings at 4.8
  • Four HDMI 2.1 ports with G-SYNC and FreeSync Premium
Cons
  • Newer model, so fewer long-term owner reports
  • 42-inch size limits immersion for big rooms
  • OLED brightness still trails bright LCD sets in daylight
LG
LG 42-inch OLED evo C4 Series 4K Smart TV

LG OLED evo C4 42-inch TV

LG 42-inch OLED evo C4 Series 4K Smart TV

4.7(288 ratings)
$817.53at Best BuyChecked Nov 2
See all prices and details
Visit Best Buy
Pros
  • Well-reviewed C4 picture quality
  • 120Hz with G-SYNC, FreeSync Premium and VRR
  • Dolby Vision, Dolby Atmos and FILMMAKER MODE
  • Slim design with a barely-there bezel
  • webOS 24 with LG Channels and Re:New updates
Cons
  • 120Hz caps frame rate versus the C6
  • Older webOS 24 platform
  • Fewer owner ratings to draw on

What separates them

LG C6 Series OLED TVLG OLED evo C4 42-inch TV
Refresh rate165Hz120Hz
Response time0.1msNot published
Smart platformwebOS 26webOS 24
ProcessorAlpha 11 AI Processor Gen3α9 AI Processor Gen7
HDR supportDolby Vision, Dolby Atmos, FILMMAKER MODEDolby Vision, HDR10, HLG, Dolby Atmos, FILMMAKER MODE
Gaming features4 HDMI 2.1, G-SYNC, FreeSync Premium, VRR, Game Optimizer4 HDMI 2.1, G-SYNC, FreeSync Premium, VRR, Game Optimizer
Panel typeOLED evo, 8.3 million self-lit pixelsOLED evo, 8.3 million self-lit pixels
Owner ratings4.8 from 2,339 ratings4.7 from 288 ratings

Price history

$899.99$583.19
Nov 2Nov 10
  • LG C6 Series OLED TV: lowest $899.99 on Nov 9 at Abt Electronics; $899.99 on Nov 10.
  • LG OLED evo C4 42-inch TV: lowest $583.19 on Nov 2; $849.00 on Nov 10.

Prices at every store

LG C6 Series OLED TV

  • WalmartNew

    In stockSold by Electronic ExpressReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $899.99Checked 22 h ago
    Visit Walmart
  • Best BuyNew

    In stock

    $899.99Free shippingChecked 22 h ago
    Visit Best Buy
  • Abt ElectronicsNew

    In stock

    $899.99Free shippingChecked 22 h ago
    Visit Abt Electronics
  • NeweggNew

    In stock

    $899.99Free shippingChecked 22 h ago
    Visit Newegg

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

All 6 stores and price history →

LG OLED evo C4 42-inch TV

  • Best BuyNew

    Availability unknown

    $817.53Checked Nov 2
    Visit Best Buy
  • AmazonNew

    Availability unknown

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

    $849.00Free shippingChecked 22 h ago
    Visit Amazon
  • eBayOpen box

    Availability unknownSold by buydig (99.5% positive, 681,200 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $870.00Free shippingChecked 22 h ago
    Visit eBay
  • TecisoftNew

    Availability unknown

    $1,494.78Checked Nov 2
    Visit Tecisoft

Store links may earn us a commission.

All 4 stores and price history →

Specs compared

SpecLG C6 Series OLED TVLG OLED evo C4 42-inch TV
Refresh rate165Hz120 Hz
screen_size42 in—
colorBlack—
Display technologyOLED—
Resolution format4K (UHD)—
Native vertical resolution2160—
Native horizontal resolution3840—
Diagonal viewable size41.5—
Response time0.1ms—
ProcessorAlpha 11 AI Processor Gen3—
Annual energy consumption117.0—
On mode power62.8—
Show all 40 specsShow fewer specs
SpecLG C6 Series OLED TVLG OLED evo C4 42-inch TV
Standby mode power0.4—
Network Functionality—Smart TV
Supported Resolutions—4K
Display Type—OLED
Resolution—4K
HDTV Format—4K UHD
Backlight Technology—OLED
Display Highlights—HDR
Anti-Glare—No
Max Resolution V-Sync

What reviewers say

LG C6 Series OLED TV

  • 4.8 / 52,339 ratings

Owners rate it very highly, praising picture quality, gaming features and the four HDMI 2.1 ports. Complaints center on brightness in bright rooms and the small screen size.

What people mention
  • Picture qualityPraisedOwners call the contrast and black levels excellent, especially in dark rooms.
  • GamingPraisedHigh refresh rate, VRR and four HDMI 2.1 ports are repeatedly singled out.
  • BrightnessCriticisedSome say the panel struggles in bright, sunlit rooms.
  • SizeMixedBuyers like the compact footprint but some find 42 inches small for a main TV.

LG OLED evo C4 42-inch TV

  • 4.7 / 5288 ratings

Rated 4.7 out of 5 from 288 ratings, buyers are largely happy with the C4's picture and gaming features. Most praise the contrast and the HDMI 2.1 loadout; complaints center on reflections in bright rooms and the modest built-in audio.

What people mention
  • Picture qualityPraisedOwners highlight perfect blacks and vivid color from the self-lit OLED panel.
  • Gaming featuresPraisedReviewers like the four HDMI 2.1 ports and G-Sync/FreeSync/VRR support.
  • ReflectionsCriticisedThe glossy screen shows windows and lamps in bright rooms.
  • SoundCriticised

Questions and answers

Which is better for gaming, the C6 or the C4?
The C6. Its 165Hz panel and 0.1ms response time beat the C4's 120Hz, and both have four HDMI 2.1 ports, G-SYNC, FreeSync Premium and VRR.
Is the C6 worth stepping up to over the C4?
Yes if you game at high frame rates or want the newer webOS and longer update support. If you mostly watch movies, the C4's picture is close and it costs less.
Do both TVs support Dolby Vision and Dolby Atmos?
Yes. Both are OLED evo sets with Dolby Vision, Dolby Atmos and FILMMAKER MODE, so HDR movies look and sound similar on each.
Which lasts longer?
Neither has a published lifespan advantage. The C6 runs newer webOS 26, which should get software updates longer than the C4's webOS 24.
Is 42 inches big enough for a living room?
It suits a bedroom, desk or small room. For a main living room, most shoppers want 55 inches or more.
Do both have the same ports?
Yes. Both offer four HDMI 2.1 ports, Ethernet, Wi-Fi and HDMI CEC, so console and PC setups connect the same way.

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Buying guides that pick them

  • Best 42-43 inch OLED TVs under $1,500
—
VRR, Nvidia G-Sync VRR certification
Display Aspect Ratio—16:9
Dynamic Contrast Ratio—Infinite contrast
Image Contrast Ratio—Excellent contrast
Viewing Angle—Wide viewing angles
Viewing Angle (Vertical)—178° vertical
Smart TV—Yes
HDMI Ports—4
Internet Streaming Services—Netflix
Network Connectivity—Ethernet, Wi-Fi
Video Interface—HDMI
PC Interface—HDMI
CEC Enabled—Yes (Simplink (HDMI CEC))
Expansion Slots—CI+
Dimensions—932x577x170 mm (with stand)
Screen Size Class—42 inches
High Dynamic Range (HDR)—true
High Dynamic Range Format—Dolby Vision, HDR 10, Hybrid Log-Gamma (HLG)
OLED Technology—OLED EVO
Built-in audio is described as thin, with most owners adding a soundbar.