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LG G6 OLED TV vs LG OLED42C5

The LG OLED65G6 is the better TV of the two and the one to buy for a main living room. It is far larger, roughly four times brighter than a conventional OLED, has a stronger 4.2-channel 60W sound system, and adds a flush wall mount in the box. The OLED42C5 is a smaller 42-inch set with the same self-lit OLED contrast and a 144Hz panel, so it suits a bedroom, desk or console setup where space is tight. Owners of the G6 praise the picture, brightness and design but complain about bloated software and fiddly picture settings.

  • Choose the LG OLED65G6 if you want a big, bright 65-inch OLED for a living room, wall-mounted with no gap, with sound good enough to skip a soundbar.
  • Choose the LG OLED42C5 if you need a compact 42-inch OLED for a bedroom, small room or desk, and want fast 144Hz gaming without a huge screen.

Prices

  • LG G6 OLED TV: $2,799.99 at First Class Installations | Houston AV (checked today)
  • LG OLED42C5: $813.68 at Newegg (checked today)
  • Difference: the LG OLED42C5 is $1,986.31 cheaper than the LG G6 OLED TV today
LG
LG OLED65G6

LG G6 OLED TV

LG OLED65G6

4.7(238 ratings)
$2,799.99at First Class Installations | Houston AVChecked 1 h ago
See all prices and details
Visit First Class Installations | Houston AV
Pros
  • Very bright for an OLED, with deep blacks and strong contrast
  • 65-inch screen suits a main room
  • 60W 4.2-channel sound is unusually good for a TV
  • Flush wall mount included, so it sits nearly flat to the wall
  • Four HDMI 2.1 ports with 4K 120Hz, VRR and G-Sync/FreeSync
Cons
  • Large and heavy, so it needs a wide wall or stand
  • Software is bloated and picture processing is hard to switch off
  • Navigation is more complicated than older LG sets
  • Some owners report the TV switching itself off or minor connectivity issues
LG
LG OLED42C5

LG OLED42C5

$813.68at NeweggChecked 1 h ago
See all prices and details
Visit Newegg

Store links may earn us a commission. Price via Klarna.

Pros
  • Compact 42-inch size fits small rooms and desks
  • 144Hz panel with VRR and under 0.1ms response suits gaming
  • Same OLED contrast, Dolby Vision and wide viewing angles
  • Alpha 9 Gen8 processor handles upscaling well
Cons
  • Much dimmer than the G6, so bright rooms are tougher
  • 20W 2.0-channel sound is thin without a soundbar
  • Smaller screen gives a less cinematic movie experience
  • No included wall mount

What separates them

LG G6 OLED TVLG OLED42C5
Screen size65 inches42 inches
Peak brightnessBrightness Booster Ultra, up to 3.9x a conventional OLEDStandard OLED panel brightness
Refresh rate120Hz native, VRR up to 165Hz144Hz
Audio60W, 4.2 channel20W, 2.0 channel
Wall mountingFlush Fit gallery design, wall mount includedStand-mounted design, VESA mount needed
Anti-glareReflection Free Premium coatingAnti-glare coating
ProcessorAlpha 11 AI Processor Gen3 with Dual AI EngineAlpha 9 AI Processor Gen8
Gaming featuresG-Sync, FreeSync Premium, 0.1ms response, four HDMI 2.1 portsVRR, under 0.1ms response, four HDMI ports

Price history

  • LG G6 OLED TV: lowest $1,999.99 on Nov 11.
  • LG OLED42C5: lowest $813.11 on Nov 11.

Prices at every store

LG G6 OLED TV

  • First Class Installations | Houston AVNew

    In stock

    $2,799.99Checked 1 h ago
    Visit First Class Installations | Houston AV
Prices and history →

LG OLED42C5

  • NeweggNew

    In stock

    $813.68Free shippingChecked 1 h ago
    Visit Newegg

Store links may earn us a commission. Price via Klarna.

Prices and history →

Specs compared

SpecLG G6 OLED TVLG OLED42C5
Resolution3840 x 21604K
HDTV Format4K4K UHD
Display TypeOLEDOLED
Anti-GlareYesYes
Display resolution4K Ultra HD (3,840 x 2,160)4K Ultra HD (3,840 x 2,160)
Refresh rate120Hz Native (VRR 165Hz)144Hz
HDR supportDolby Vision / HDR10 / HLGDolby Vision / HDR10 / HLG
Picture processorAlpha 11 AI Processor 4K Gen3 with Dual AI Engi…α9 AI Processor 4K Gen8
Audio output60W20W
Speaker system4.2 Channel2.0 Channel
HDMI inputs4ea (supports 4K 120Hz, eARC, VRR, ALLM, QMS, Q…4ea (supports 4K 120Hz, eARC, VRR, ALLM, QMS (4…
Wi-FiYes (Wi-Fi 6)Yes (Wi-Fi 6)
Show all 40 specsShow fewer specs
SpecLG G6 OLED TVLG OLED42C5
High DefinitionYes—
ColorBlack—
Screen FormFlat—
Screen Size65 inches—
Dimensions without stand1441 x 826 x 24.3—
Weight without stand22—
VESA mounting300 x 300—
Network Functionality—Smart TV, Streaming
Supported Resolutions—4K
Backlight Technology

What reviewers say

LG G6 OLED TV

  • 4.7 / 5238 ratings

Owners rate the G6 highly, mostly for its contrast, brightness and gaming speed. Complaints center on the software rather than the panel.

What people mention
  • Picture qualityPraisedOwners call the contrast, blacks and color exceptional.
  • BrightnessPraisedBuyers say it is far brighter than older OLEDs and holds up in lit rooms.
  • GamingPraisedFast response and high refresh rates make it a favorite for console and PC play.
  • DesignPraisedThe slim panel and near-flush wall mount are seen as premium.
Reviews
  • Best LG TV 2026: Six of the best LG TVs you can buy

Questions and answers

Which is better for a bright living room?
The G6. Its Brightness Booster Ultra and Reflection Free Premium coating hold up far better against daylight and lamps than the standard panel on the C5.
Which is better for gaming?
Both are strong. The C5 has a slightly higher 144Hz refresh, but the G6 matches it on response time and adds G-Sync and FreeSync Premium on four HDMI 2.1 ports, so pick the G6 for a console or PC in a main room and the C5 for a desk setup.
Is the G6 worth stepping up to over the C5?
Yes if you want a big screen, high brightness and built-in sound for a living room. The C5 makes more sense when space is limited and you mainly want OLED contrast at a smaller size.
Which lasts longer?
Both use OLED panels with similar lifespans, and neither has a clear reliability edge. The G6's higher brightness means it works harder, so keep brightness moderate for mixed viewing.
Do I need a soundbar with either?
The G6's 60W 4.2-channel system is good enough for most rooms. The C5's 20W 2.0-channel audio is thin, so a soundbar helps there.
Which is easier to wall-mount?
The G6. It ships with a flush wall mount and a gallery design that leaves almost no gap. The C5 needs a separate VESA 200x200 mount.

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Buying guides that pick them

  • Best LG TVs
—
OLED
Display Highlights—HDR
Max Resolution V-Sync—VRR
Display Aspect Ratio—16:9
Dynamic Contrast Ratio—Infinite contrast
Image Contrast Ratio—Near-infinite
Viewing Angle—Wide
Menu Language—Spanish, English, French
Color Temperature—Yes
Smart TV—Yes
HDMI Ports—4
Internet Streaming Services—Netflix, Disney+
Network Connectivity—Ethernet
Video Interface—HDMI
PC Interface—HDMI
CEC Enabled—Yes
Expansion Slots—Common Interface (CI) slot
Response time—Less than 0.1ms
USB inputs—3ea (v 2.0)