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TCL QM6K QD-Mini LED Google TV vs TCL QM51L QD-Mini LED 4K Google TV

The QM6K is the better TV for most people. It has a 120Hz native panel (144Hz per TCL's spec sheet), 4 HDMI ports, a 2.1 ONKYO speaker system with subwoofer, and a 4.6 rating from 3,500 owners. The QM51L is a newer 2026 budget QD-Mini LED set with a 60Hz panel, 3 HDMI ports and a 4.1 rating from far fewer owners. Buy the QM6K for gaming, sports and sound out of the box. Buy the QM51L only if you want a large 75-inch screen and mostly watch movies and shows at 60Hz.

  • Choose the TCL QM6K if you game, watch sports, or want a 120Hz panel, four HDMI ports and a subwoofer-backed 2.1 sound system.
  • Choose the TCL QM51L if you want a big 75-inch QD-Mini LED screen for movies and streaming and do not need a high refresh rate for gaming.

Prices

  • TCL QM6K QD-Mini LED Google TV: $427.99 at Amazon (last seen Nov 11)
  • TCL QM51L QD-Mini LED 4K Google TV: $698.00 at Walmart (checked today)
  • Difference: the TCL QM6K QD-Mini LED Google TV is $270.01 cheaper than the TCL QM51L QD-Mini LED 4K Google TV at the latest prices (Nov 11 and Nov 12)
TCL
TCL Class QM6K Series QD-Mini LED QLED 4K UHD Smart Google TV

TCL QM6K QD-Mini LED Google TV

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

4.6(3,500 ratings)
$427.99at AmazonChecked Nov 11
See all prices and details
Visit Amazon

Store links may earn us a commission. As an Amazon Associate, Deal.ai earns from qualifying purchases.

Pros
  • 120Hz panel with VRR and Game Accelerator 240 suits consoles and PC gaming
  • Four HDMI ports cover a console, soundbar and two streamers
  • ONKYO 2.1 sound with subwoofer is stronger than most built-in TV audio
  • High owner rating from a large sample of 3,500 ratings
  • Comes in 50 to 85 inches, so it fits small and large rooms
Cons
  • Peak brightness trails the QM8L and Hisense U8QG
  • Basic sound without a soundbar for serious movie nights
  • Halo control is good but not the top of TCL's lineup
TCL
TCL 75" QM51L Series QD-Mini LED QLED 4K UHD HDR Smart Google TV (New 2026)

TCL QM51L QD-Mini LED 4K Google TV

TCL 75" QM51L Series QD-Mini LED QLED 4K UHD HDR Smart Google TV (New 2026)

4.1(137 ratings)
$698.00at WalmartChecked 3 h ago
See all prices and details
Visit Walmart
Pros
  • Newer 2026 model with up to 400+ dimming zones
  • Dolby Atmos and DTS Virtual:X processing
  • Large 75-inch screen for a cinematic living room setup
  • Full HDR format support including Dolby Vision and HDR10+
Cons
  • 60Hz panel limits smoothness in fast games and sports
  • Only 3 HDMI ports
  • Lower owner rating from a small pool of 137 ratings
  • No listed subwoofer in the speaker system

What separates them

TCL QM6K QD-Mini LED Google TVTCL QM51L QD-Mini LED 4K Google TV
Native refresh rate120Hz native, with Game Accelerator 240 and VRR60Hz native, with Game Accelerator 144
HDMI inputs4 ports3 ports
Audio2.1 channel ONKYO with subwoofer, 40W3 speakers with Dolby Atmos and DTS Virtual:X, no listed subwoofer
Dimming zonesLocal Dimming Pro with halo controlLocal Dimming Pro with up to 400+ zones
Owner rating4.6 out of 5 from 3,500 ratings4.1 out of 5 from 137 ratings
Size range50 to 85 inches75 inches
Release year2025 QM6K series2026 QM51L series
HDR formatsDolby Vision IQ, HDR10+, HDR10, HLG, IMAX EnhancedDolby Vision, HDR10+, HDR10, HLG

Price history

$698.00$329.99
Oct 28Nov 13
  • TCL QM6K QD-Mini LED Google TV: lowest $329.99 on Nov 3; $479.99 on Nov 13.
  • TCL QM51L QD-Mini LED 4K Google TV: lowest $698.00 on Nov 10 at Walmart; $698.00 on Nov 12.

Prices at every store

TCL QM6K QD-Mini LED Google TV

  • TCL USNew

    In stock

    $799.99Free shippingChecked Nov 9
    Visit TCL US
  • Newegg.comNew

    In stockSold by BrandsMart USA

    $1,016.06Free shippingChecked Nov 9
    Visit Newegg.com
  • AmazonNew

    Availability unknown

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

    $427.99Free shippingChecked Nov 11
    Visit Amazon
  • DoorDashNew

    Availability unknownSold by Best Buy US

    $599.99Checked Nov 9
    Visit DoorDash

Also available at

  • BrandsMart USACheck price at BrandsMart USA
  • TCL USCheck price at TCL US
  • Abt ElectronicsCheck price at Abt Electronics

Store links may earn us a commission.

All 5 stores and price history →

TCL QM51L QD-Mini LED 4K Google TV

  • WalmartNew

    In stock

    $698.00Free shippingChecked 3 h ago
    Visit Walmart
  • WalmartNew

    In stock

    $698.00Checked 3 h ago
    Visit Walmart
Prices and history →

Specs compared

SpecTCL QM6K QD-Mini LED Google TVTCL QM51L QD-Mini LED 4K Google TV
Resolution3840 x 21604K UHD
ColorBlackBlack
HDRYesYes
Refresh Rate120 Hz60 Hz
Screen Size50 inches, 55 inches, 65 inches, 75 inches, 85 …74.5 in
Smart TVtrueYes
High DefinitionYes—
HDTV Format4K—
Screen FormFlat—
Display TypeLED—
Assistant SupportGoogle Assistant, Amazon Alexa, Siri—
ConnectivityBluetooth, Wi-Fi, USB, HDMI, Optical Audio—
Show all 40 specsShow fewer specs
SpecTCL QM6K QD-Mini LED Google TVTCL QM51L QD-Mini LED 4K Google TV
Supported Streaming ServicesHulu, Netflix, Prime Video, YouTube, Spotify, D…—
Width43.7 in wide—
Depth2.7 in deep—
Weight31 lb—
HDMI Ports4 HDMI ports—
With V-ChipYes—
High Dynamic Range (HDR)true—
Outdoorfalse—
SeriesQM6K Series—
Remote Control Type

What reviewers say

TCL QM6K QD-Mini LED Google TV

  • 4.6 / 53,500 ratings

With 4.6 out of 5 from about 3,500 ratings, owners mostly praise the picture for the money, especially contrast and motion. Complaints center on brightness versus step-up models and on sound quality.

What people mention
  • Picture contrastPraisedOwners say local dimming gives deep blacks and strong contrast for the money.
  • BrightnessMixedReviewers find it bright enough for most rooms but dimmer than the QM8L and U8QG.
  • MotionPraisedThe 144Hz panel and game mode are called smooth for sports and console gaming.
  • SoundCriticisedThe ONKYO speakers are described as basic, and many buyers add a soundbar.

TCL QM51L QD-Mini LED 4K Google TV

  • 4.1 / 5137 ratings

Owners rate the QM51L around 4.1 out of 5 and mostly praise the bright, colorful picture and gaming features for the money. Complaints center on backlight blooming, uneven panels and weak built-in audio.

What people mention
  • Picture brightnessPraisedOwners say the screen stays bright and colorful even in a well-lit room.
  • BloomingCriticisedReviewers notice light halos around bright objects against dark backgrounds.
  • GamingPraisedBuyers like the low-latency game mode and smooth motion for consoles.
  • SoundCriticised

Questions and answers

Which is better for gaming, the QM6K or the QM51L?
The QM6K. Its 120Hz native panel, VRR support and Game Accelerator 240 give smoother motion and lower lag than the QM51L's 60Hz panel. The QM51L's Game Accelerator 144 helps, but the panel itself tops out at 60Hz.
Which has better picture quality?
They are close. The QM51L lists up to 400+ dimming zones and a newer 2026 backlight design. The QM6K has strong halo control and a higher owner rating. For bright rooms, the QM51L's zone count helps; for motion, the QM6K wins.
Is the QM6K worth stepping up to over the QM51L?
Yes for gamers and sports fans. You get double the refresh rate, an extra HDMI port and a subwoofer-backed 2.1 sound system. If you only stream movies at 60Hz, the QM51L covers the basics.
Which one has better sound without a soundbar?
The QM6K. Its ONKYO 2.1 system with a subwoofer produces more bass and fuller sound. The QM51L offers Dolby Atmos and DTS Virtual:X processing, but its three speakers have no listed subwoofer.
Which lasts longer?
Neither has a documented lifespan advantage. The QM6K has a longer track record with 3,500 owner ratings at 4.6, which is a better reliability signal than the QM51L's 137 ratings at 4.1.
Does the QM51L come in sizes other than 75 inches?
The listing shows only the 75-inch size. The QM6K comes in 50, 55, 65, 75 and 85 inches, so it fits more room sizes.

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Backlit Voice Remote
—
Picture ProcessorAiPQ Pro Processor—
Curved Panelfalse—
Wireless Transmissiontrue—
VRR Supporttrue—
Speaker Channels2.1—
Supported SoundDolby Atmos, Dolby Digital+, Dolby Digital, PCM…—
LEDtrue—
Built-In WiFitrue—
Bluetoothtrue—
Number of HDMI Inputs4—
Number of USB Ports2—
Built-in-TunerNTSC, ATSC, Clear QAM—
Output Connectors1 x Digital Audio Out (Optical)—
Wall-Mountabletrue—
Display Diagonal98 inch, 75", 65 inch—
Width With Stand65.8 inch, 48.4 inch—
Width Without Stand56.9 inch—
Digital Tv TunerATSC, ClearQAM—
Owners find the built-in speakers thin and often add a soundbar.
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