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LG C4 OLED TV vs TCL QM6K QD-Mini LED 4K Smart TV

The TCL QM6K is the better buy for most people deciding between these two. At $798 at Walmart as of November 6, 2026, it is $231 less than the LG C4 at $1,029 at Walmart, and it gives you a 75-inch screen instead of 55 inches. Pick the LG C4 only if you want OLED black levels, wide viewing angles and G-Sync for a dark home theater or a PC monitor setup.

Today the TCL QM6K QD-Mini LED 4K Smart TV costs $229.01 less at its best price.

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LG
LG C4

LG C4 OLED TV

LG C4

5(13 ratings)
$1,029.00at WalmartObserved at 10:03 PM
See all prices and details
Visit Walmart

Choose the LG C4 if you sit close, watch in a dark room, and want perfect blacks, wide viewing angles and Nvidia G-Sync certification for gaming.

Pros
  • Perfect black and infinite contrast from OLED
  • Wide 178° viewing angles with no color shift
  • G-Sync certified with four HDMI 2.1 ports
  • Dolby Vision, HDR10 and HLG with the α9 Gen7 processor
Cons
  • 55 inches only, and $231 more than the TCL
  • No anti-glare coating, so reflections show in bright rooms
  • Burn-in risk with static logos and news tickers
  • Built-in sound is weak at high volume
TCL
TCL 75" Class QM6K QD-Mini LED 4K Smart TV (2025)

TCL QM6K QD-Mini LED 4K Smart TV

TCL 75" Class QM6K QD-Mini LED 4K Smart TV (2025)

4.2(1,243 ratings)
$799.99at BrandsMart USAObserved at 9:43 PM
See all prices and details
Visit BrandsMart USA

Choose the TCL QM6K if you want the biggest screen for the money in a bright room and do not need OLED contrast.

Pros
  • 75-inch screen for less than the 55-inch LG
  • QD-Mini LED with local dimming and 93% DCI-P3 color
  • 144 Hz native with Game Accelerator 288
  • ONKYO 2.1 40W sound with a subwoofer
Cons
  • LCD contrast cannot match OLED black levels
  • Blooming around bright objects on dark scenes
  • Picture shifts at wide angles off-center
  • Google TV interface differs from webOS

What separates them

LG C4 OLED TVTCL QM6K QD-Mini LED 4K Smart TV
Screen size55 inches75 inches
Panel technologyOLED evo, self-lit pixels, pixel dimmingQD-Mini LED with local dimming and quantum dot color
ContrastInfinite contrast, perfect blackUp to 7000:1 native contrast, some blooming
BrightnessBrightness Booster, strong but below top LCDsHigh Brightness Pro, brighter highlights in lit rooms
Gaming features4 HDMI 2.1, 0.1 ms response, VRR to 144 Hz, G-Sync certified4K 144 Hz native, Game Accelerator 288, up to 288 VRR
Smart platformwebOS 24 with 300+ free LG ChannelsGoogle TV with Google Assistant, Alexa and Siri/HomeKit
SoundBuilt-in speakers, weak at high volumeONKYO 2.1 channel, 40W, with subwoofer
Price$1,029 at Walmart as of November 6, 2026$798 at Walmart as of November 6, 2026

Price history

$1,029.00$630.43
Oct 28Nov 7
  • LG C4 OLED TV: lowest $630.43 on Oct 31 at Walmart; $794.00 on Nov 7.
  • TCL QM6K QD-Mini LED 4K Smart TV: lowest $697.99 on Nov 5 at Abt Electronics & Appliances; $798.00 on Nov 7.

Prices at every store

LG C4 OLED TV

  • WalmartNew

    In stockSold by Beach Camera

    $1,029.00Observed at 10:03 PM
    Visit Walmart
  • Best BuyNew

    In stock

    $1,079.00Observed at 10:03 PM
    Visit Best Buy
  • eBayOpen box

    Availability unknownSold by therealrickc137 (100% positive, 13 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $730.69+ $43.15 shippingVerified
    Visit eBay
  • eBayNew

    Availability unknownSold by mercapool (95.1% positive, 14,200 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $1,042.25+ $84.14 shippingVerified
    Visit eBay

Also available at

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All 4 stores and price history →

TCL QM6K QD-Mini LED 4K Smart TV

  • BrandsMart USANew

    In stock

    $799.99+ $100.00 shippingObserved at 9:43 PM
    Visit BrandsMart USA
  • Macy'sNew

    In stock

    $999.99Free shippingObserved Nov 6, 2026, 6:02 PM
    Visit Macy's
  • Newegg.comNew

    In stockSold by BrandsMart USA

    $1,016.06Free shippingObserved Nov 6, 2026, 6:02 PM
    Visit Newegg.com

Also available at

  • eBayCheck price at eBay
  • eBayCheck price at eBay
  • WalmartCheck price at Walmart

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Specs compared

SpecLG C4 OLED TVTCL QM6K QD-Mini LED 4K Smart TV
Resolution3840 x 21603840 x 2160
High DefinitionYesYes
HDTV Format4K4K
ColorBlackBlack
Screen FormFlatFlat
Display TypeOLEDLED
Assistant SupportGoogle Assistant, Amazon AlexaGoogle Assistant, Amazon Alexa, Siri
HDRYesYes
Refresh Rate120 Hz120 Hz
ConnectivityBluetooth, Wi-Fi, USB, HDMI, EthernetBluetooth, Wi-Fi, USB, HDMI, Ethernet, Optical …
Supported Streaming ServicesNetflix, Prime Video, YouTube, HBO, Disney+, Ro…Netflix
Weight132 lb71.9 lb
Show all 40 specsShow fewer specs
SpecLG C4 OLED TVTCL QM6K QD-Mini LED 4K Smart TV
Smart TVYestrue
Screen Size42 inches, 48 inches, 55 inches, 65 inches, 77 …55 inches, 75 inches, 85 inches
High Dynamic Range (HDR)truetrue
High Dynamic Range FormatDolby VisionDolby Vision IQ
BrandLGTCL
Seriesevo C4 SeriesQM6K Series
HDMI Ports4 HDMI ports—
Network FunctionalitySmart TV—
Supported Resolutions4K—

What reviewers say

LG C4 OLED TV

  • 5 / 513 ratings

Reviewers rate the C4 highly, praising picture quality, brightness, contrast and easy setup, with several calling it the best TV they have owned. Complaints center on weak built-in sound, the Magic Remote and price, and one owner reports burn-in.

What people mention
  • Picture qualityPraisedOwners call the image excellent and clear, with fully saturated colors and deep contrast.
  • BrightnessPraisedReviewers rate brightness and contrast as best in class for an OLED.
  • SoundCriticisedBuilt-in audio is described as weak, especially at high volume.
  • PriceCriticisedSeveral reviewers consider the set expensive for its size.

TCL QM6K QD-Mini LED 4K Smart TV

  • 4.2 / 51,243 ratings

Ratings average 4.2 out of 5 from 1,243 buyers, who mostly praise the bright, colorful picture and gaming features for the price. Complaints center on blooming in dark scenes and the panel's size and weight at setup.

What people mention
  • Picture brightnessPraisedOwners say highlights pop and the set holds up in bright rooms.
  • BloomingCriticisedDark scenes show halos around bright objects despite local dimming.
  • GamingPraisedHigh refresh rate and low lag are called out as strong for the price.
  • SoundMixed
Reviews
  • Best 4K TV for 2026 - CNET
  • Best 85-Inch TV for 2026 - CNET
  • The Best Cheap TVs for 2026
  • The Best Cheap TVs We've Tested for 2026 - PCMag editors select and review products independently

Questions and answers

Which is better for a dark home theater?
The LG C4. OLED pixels switch off for perfect black, so dark scenes look cleaner than on the TCL's backlit panel. The TCL wins in a bright room where its higher brightness fights glare.
Is the LG C4 worth $231 more?
Only if you value OLED contrast and wide viewing angles over screen size. The TCL gives you 20 more inches for less money, which most living rooms will notice more.
Which is better for gaming?
Both are strong. The LG C4 has 0.1 ms response and G-Sync certification; the TCL QM6K runs 144 Hz native with Game Accelerator 288. Pick the LG for a PC with an Nvidia card, the TCL for console play on a big screen.
Which lasts longer?
The TCL has no burn-in risk, which is the main long-term worry with OLED. The LG C4 can develop burn-in from static logos, though most owners never see it.
Which has better sound?
The TCL QM6K. Its ONKYO 2.1 system with a subwoofer puts out 40W. The LG C4's built-in speakers are criticized at high volume, so budget for a soundbar either way.
Which is better for a bright, sunny room?
The TCL QM6K. Its Mini LED backlight pushes brighter highlights and holds up better against window light. The LG C4 has no anti-glare coating.

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Buying guides that pick them

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  • Best value 55-inch TVs
All 3 stores and price history →
Backlight Technology
OLED
—
Display HighlightsHDR—
Anti-GlareNo—
Max Resolution V-SyncVRR, Nvidia G-Sync VRR certification—
Display Aspect Ratio16:9—
Dynamic Contrast RatioInfinite contrast—
Image Contrast RatioExcellent contrast—
Viewing AngleWide viewing angles—
Viewing Angle (Vertical)178° vertical—
Internet Streaming ServicesNetflix—
Network ConnectivityEthernet, Wi-Fi—
Video InterfaceHDMI—
PC InterfaceHDMI—
CEC EnabledYes (Simplink (HDMI CEC))—
Expansion SlotsCI+—
Dimensions932x577x170 mm (with stand)—
Screen Size Class65 inches—
OLED TechnologyOLED EVO—
Smart PlatformwebOS—
The ONKYO 2.1 system beats most built-in TV audio but lacks bass depth.
Best Black Friday 4K smart TV deals
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