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55" Class QNED AI QNED75B Mini LED 4K Smart TV vs TCL QM6K QD-Mini LED 4K TV

The TCL QM6K is the better TV for most people: 120Hz, up to 500 local dimming zones, Dolby Atmos and Onkyo 2.1 audio beat the LG QNED75B on the things that matter for movies and gaming. The LG costs less, at $349.99 at BrandsMart USA as of November 5, 2026, versus $479.99 at TCL North America, and it has dropped as low as $279.99 on November 3, 2026. Buy the LG if budget is the deciding factor; buy the TCL if you want the better picture and smoother motion for about $130 more.

Today the 55" Class QNED AI QNED75B Mini LED 4K Smart TV costs $130.00 less at its best price.

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LG
55" Class QNED AI QNED75B Mini LED 4K Smart TV

55" Class QNED AI QNED75B Mini LED 4K Smart TV

$349.99at BrandsMart USAVerified
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Choose the LG QNED75B if you want a 75-inch 4K set at the lowest price and mostly watch streaming shows and broadcast TV in a bright room.

Pros
  • Lowest price of the pair: $349.99 at BrandsMart USA as of November 5, 2026.
  • Recent low of $279.99 on November 3, 2026 shows it can go cheaper.
  • AMD FreeSync Premium, ALLM and Game Optimizer for console gaming.
  • webOS 26 with 400+ free LG Channels and 10,000+ movies and shows on demand.
  • Filmmaker Mode with Ambient Light Technology.
Cons
  • 60Hz panel limits motion smoothness for sports and fast games.
  • No Dolby Atmos or dedicated subwoofer.
  • Wi-Fi 5 only, not Wi-Fi 6.
  • No dimming zone count published, so contrast is hard to judge against the TCL.
TCL
QM6K Series QD-Mini LED QLED 4K UHD Smart TV with Google TV

TCL QM6K QD-Mini LED 4K TV

QM6K Series QD-Mini LED QLED 4K UHD Smart TV with Google TV

$479.99at TCL North AmericaObserved at 4:34 PM
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Choose the TCL QM6K if you watch movies and sports or play console games and want 120Hz motion, real local dimming and Dolby Atmos sound.

Pros
  • 120Hz refresh rate for smoother sports and games.
  • Up to 500 local dimming zones with all-domain halo control.
  • Onkyo 2.1 audio with subwoofer and Dolby Atmos.
  • Google TV with Google Assistant, Alexa and Siri support.
  • Available in 50 to 85 inches.
Cons
  • Costs $479.99 at TCL North America as of November 5, 2026, about $130 more than the LG.
  • Dolby Vision is not listed among its HDR formats.
  • HDMI port count and VRR support are not specified.
  • Only one store prices it new, so price competition is thin.

What separates them

55" Class QNED AI QNED75B Mini LED 4K Smart TVTCL QM6K QD-Mini LED 4K TV
Refresh rate60Hz120Hz
Local dimmingMini LED backlight, no zone count givenLocal Dimming Pro with up to 500 zones
HDR formatsHDR10, HLG (HDR10 Pro processing)HDR with high HDR brightness; Dolby Vision not listed
AudioBuilt-in speakers, no Atmos listedOnkyo 2.1 channel with subwoofer, Dolby Atmos
Smart platformwebOS 26 with LG Channels (400+ free channels)Google TV with Google Assistant, Alexa and Siri support
Gaming featuresAMD FreeSync Premium, ALLM, Game Optimizer120Hz panel; VRR support not specified
HDMI ports3Not specified
Price, November 5, 2026$349.99 at BrandsMart USA$479.99 at TCL North America

Price history

$649.96$279.99
Oct 30Nov 4
  • 55" Class QNED AI QNED75B Mini LED 4K Smart TV: lowest $279.99 on Nov 3 at Best Buy; $299.99 on Nov 4.
  • TCL QM6K QD-Mini LED 4K TV: lowest $427.99 on Nov 4 at Amazon.

Prices at every store

55" Class QNED AI QNED75B Mini LED 4K Smart TV

  • BrandsMart USANew

    In stockReturn policy

    $349.99Verified
    Visit store

Also available at

  • Abt Electronics & AppliancesCheck price at Abt Electronics & Appliances
  • Best BuyCheck price at Best Buy
  • B&H Photo-Video-AudioCheck price at B&H Photo-Video-Audio
Prices and history →

TCL QM6K QD-Mini LED 4K TV

  • TCL North AmericaNew

    In stockReturn policy

    $479.99Observed at 4:34 PM
    Visit store
  • Hyper Microsystems, Inc.Pre-owned

    In stockReturn policy

    $519.00Observed at 4:34 PM
    Visit store

Also available at

  • TCL StoreCheck price at TCL Store
  • FinanceMyCartCheck price at FinanceMyCart
  • AmazonCheck price at Amazon
All 2 stores and price history →

Specs compared

Spec55" Class QNED AI QNED75B Mini LED 4K Smart TVTCL QM6K QD-Mini LED 4K TV
Screen size75 inches50 inches, 55 inches, 65 inches, 75 inches, 85 …
Resolution4K3840 x 2160
Refresh rate60Hz120 Hz
High DefinitionYesYes
HDTV Format4K4K
ColorBlackBlack
Screen FormFlatFlat
Display TypeLEDLED
Assistant SupportGoogle AssistantGoogle Assistant, Amazon Alexa, Siri
HDRYesYes
ConnectivityBluetooth, Wi-Fi, RF, USB, HDMI, EthernetBluetooth, Wi-Fi, USB, HDMI, Optical Audio
Display technologyMini Led—
Show all 24 specsShow fewer specs
Spec55" Class QNED AI QNED75B Mini LED 4K Smart TVTCL QM6K QD-Mini LED 4K TV
HDR formatsHDR10, HLG—
Processora7 AI Processor 4K Gen9—
Smart platformwebOS 26 And LG Channels—
Wi-FiBuilt-In Wi-Fi 5—
BluetoothBluetooth 5.3—
Aspect ratio16:9—
Dimensions14.2"D x 65.7"W x 40.4"H—
Supported Streaming ServicesNetflix, Prime Video, YouTube, HBO, Disney+—
Width65.7 in wide—
Depth

What reviewers say

TCL QM6K QD-Mini LED 4K TV

The QM6K line is generally well received as one of the stronger value mini-LED TVs, with owners praising brightness and contrast for the price. Complaints tend to focus on motion handling, sound, and the Google TV interface.

Pros
  • Bright, punchy HDR picture for the price
  • Good contrast from local dimming
  • Strong value versus big-brand mini-LED sets
  • Useful gaming features at 120 Hz
Cons
  • Visible blooming in dark scenes on some sizes
  • Built-in audio is thin without the subwoofer engaged
  • Google TV can feel slow and ad-heavy
  • Upscaling of low-resolution content is average

Questions and answers

Which is better for gaming, the LG QNED75B or the TCL QM6K?
The TCL QM6K, because its 120Hz panel handles high frame rates that the LG's 60Hz panel cannot. The LG counters with AMD FreeSync Premium and ALLM, which help reduce tearing and lag on consoles.
Is the TCL QM6K worth about $130 more than the LG?
Yes for movie and sports viewers: 120Hz motion, up to 500 dimming zones and Dolby Atmos audio are real upgrades. If you mostly watch streaming shows and want the lowest price, the LG at $349.99 is the better value.
Which has better contrast and black levels?
The TCL QM6K, on paper. It uses Local Dimming Pro with up to 500 zones and all-domain halo control. LG does not publish a zone count for the QNED75B.
Which TV has better sound without a soundbar?
The TCL QM6K. It has Onkyo 2.1 channel audio with a subwoofer and Dolby Atmos. The LG relies on standard built-in speakers with no Atmos support listed.
Do both support the same streaming apps?
Both cover Netflix, Prime Video, YouTube, Disney+ and HBO, but through different platforms: webOS 26 on the LG and Google TV on the TCL. The LG adds 400+ free channels via LG Channels.
Which one has dropped more in price recently?
The LG: it fell from $649.96 on October 30, 2026 to $279.99 on November 3, 2026, and sits at $349.99 on November 5. The TCL moved from $599.99 on November 3 to $427.99 on November 4, then $479.99 on November 5.

More comparisons

  • 55" Class QNED AI QNED75B Mini LED 4K Smart TV vs Q Class 4K UHD HDR QLED Smart TV with Google TV
  • QM6K Series QD-Mini LED QLED 4K UHD Smart TV with Google TV vs Q Class 4K UHD HDR QLED Smart TV with Google TV

Buying guides that pick them

  • Best 55-inch 4K smart TVs
  • Best TVs under $500
  • Best mini LED TVs under $500
  • Best 65- to 75-inch 4K Google TVs
2.8 in deep
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Weight66 lb—
HDMI Ports3 HDMI ports—