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Product comparison · 2 tvs

LG OLED42C66LB 42" 4K OLED evo Smart TV with Dolby Vision Dolby Atmos & webOS vs Samsung 55” Mini LED 4K Vision AI Smart TV M74H (2026)

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  • 44specifications compared
  • 23differ
  • 21identical
  • 59known for one product only

Key differences

The LG OLED42C66LB 42" 4K OLED evo Smart TV with Dolby Vision Dolby Atmos & webOS has 70 Hz more native refresh rate than the Samsung 55” Mini LED 4K Vision AI Smart TV M74H (2026) (120 Hz vs 50 Hz). The LG OLED42C66LB 42" 4K OLED evo Smart TV with Dolby Vision Dolby Atmos & webOS has 100 x 200 mm more panel mounting interface than the Samsung 55” Mini LED 4K Vision AI Smart TV M74H (2026) (300 x 200 mm vs 200 x 200 mm). The LG OLED42C66LB 42" 4K OLED evo Smart TV with Dolby Vision Dolby Atmos & webOS has 1 more HDMI ports quantity than the Samsung 55” Mini LED 4K Vision AI Smart TV M74H (2026) (4 vs 3). Only the Samsung 55” Mini LED 4K Vision AI Smart TV M74H (2026) has works with Amazon Alexa. Display diagonal: 106.7 cm (42") on the LG OLED42C66LB 42" 4K OLED evo Smart TV with Dolby Vision Dolby Atmos & webOS, 139.7 cm (55") on the Samsung 55” Mini LED 4K Vision AI Smart TV M74H (2026).

  • Display diagonal
    • 106.7 cm (42")
    • 139.7 cm (55")
  • Display technology
    • OLED evo
    • LED
  • Native refresh rate
    • 120 Hz
    • 50 Hz
  • Operating system installed
    • WebOS
    • Tizen
  • Panel mounting interface
    • 300 x 200 mm
    • 200 x 200 mm
  • HDMI ports quantity
    • 4
    • 3
  • Works with Amazon Alexa
    • No
    • Yes
  • Energy efficiency class (SDR)
    • G
    • F

Side by side

Differences highlightedShow differences only
103 specifications
A

LG

OLED42C66LB 42" 4K OLED evo Smart TV with Dolby Vision Dolby Atmos & webOSView product
B

Samsung

55” Mini LED 4K Vision AI Smart TV M74H (2026)View product
Display3 differ
Display diagonalDiffers106.7 cm (42")139.7 cm (55")
HD type4K Ultra HD4K Ultra HD
Display resolution3840 x 2160 pixels3840 x 2160 pixels
Display technologyDiffersOLED evoLED
Screen shapeKnown for oneFlat
Native aspect ratio16:916:9
Motion interpolation technologyKnown for oneMotion Xcelerator
Native refresh rateDiffers120 Hz50 Hz
Display diagonal (metric)Known for one138 cm
TV tuneridentical
Tuner typeAnalog & digitalAnalog & digital
Digital signal format systemKnown for oneDVB-T2, DVB-C, DVB-S2
Smart TV1 differ
Smart TVYesYes
Internet TVKnown for oneNo
Operating system installedDiffersWebOSTizen
Apple AirPlay 2 supportYesYes
Sound mirroringKnown for oneYes
Hybrid Broadcast Broadband TV (HbbTV)Known for oneYes
Hybrid Broadcast Broadband TV (HbbTV) versionKnown for oneHbbTV 2.0.4 (IT,GB,DE,CZ,SK,ES,PL,AT,FR,FI,EE,GR,SI,HR,BE,NL,LU,HU,CH,PT,DK,ME)
Screen mirroringKnown for oneYes
Video appsKnown for oneYouTube, All 4, Amazon Prime Video, Rakuten TV, Apple TV, BBC iPlayer, My5, NOW TV, Netflix, Paramount+, Twitch, ITV X, Chili, DAZN, Disney+
Audioidentical
Number of speakersKnown for one2
Audio output channels2.0 channels2.0 channels
RMS rated powerKnown for one20 W
Adaptive soundKnown for oneYes
Audio pre-selection descriptorKnown for oneYes
Enhanced Audio Return Channel (eARC)YesYes
Audio decodersKnown for oneDolby Atmos
Networkidentical
Wi-FiYesYes
Wi-Fi standardsKnown for oneWi-Fi 5 (802.11ac)
BluetoothYesYes
Bluetooth version5.35.3
Ethernet LANYesYes
Web browserKnown for oneYes
Design1 differ
Product colourKnown for oneBlack
Colour nameKnown for oneTitan Black
VESA mountingYesYes
Panel mounting interfaceDiffers300 x 200 mm200 x 200 mm
Rollable displayKnown for oneNo
Introduction year20262026
Stand colourKnown for oneGrey
Performance1 differ
High Dynamic Range (HDR) supportedYesYes
High Dynamic Range (HDR) technologyDiffersHigh Dynamic Range 10 (HDR10), Hybrid Log-Gamma (HLG), Dolby VisionHigh Dynamic Range 10+ (HDR10 Plus)
Game modeYesYes
Eco sensorKnown for oneYes
AI UpscaleKnown for oneYes
TV key supportKnown for oneYes
Backlight dimming technologyKnown for oneSupreme Mini LED Dimming
Noise reductionKnown for oneNo
Picture processorKnown for oneMini LED Processor 4K
Game featuresKnown for oneAuto Low Latency Mode (ALLM), Game Bar, HGiG, Variable Refresh Rate (VRR)
4K Ultra HD upscalingYesYes
Video upscalingKnown for oneYes
Subtitles functionKnown for oneYes
Ports & interfaces1 differ
HDMI ports quantityDiffers43
PC in (D-Sub)Known for oneNo
Ethernet LAN (RJ-45) portsKnown for one1
USB 2.0 ports quantityKnown for one1
Common interface (CI)Known for oneYes
Common interface Plus (CI+)Known for oneNo
Consumer Electronics Control (CEC)Known for oneAnynet+
Audio Return Channel (ARC)Known for oneYes
Digital audio optical outKnown for one1
Management features1 differ
Control typeKnown for oneRemote
Voice guideKnown for oneYes
Electronic Programme Guide (EPG)Known for oneYes
On Screen Display (OSD)Known for oneYes
Number of OSD languagesKnown for one27
Auto power offKnown for oneYes
Works with Amazon AlexaDiffersNoYes
Works with Samsung BixbyKnown for oneYes
Works with the Google AssistantYesYes
Universal Browse & PlayKnown for oneYes
Power3 differ
Power consumption (typical)Known for one77 W
Power consumption (standby)0.5 W0.5 W
Energy efficiency class (SDR)DiffersGF
Energy efficiency class (HDR)GG
Energy consumption (SDR) per 1000 hoursDiffers52 kWh77 kWh
Energy consumption (HDR) per 1000 hoursDiffers72.3 kWh110 kWh
AC input voltageKnown for one220-240 V
AC input frequencyKnown for one50/60 Hz
Energy efficiency scaleA to GA to G
Power supply typeKnown for oneInternal
Brand-specific featuresidentical
Samsung technologies (AV/TV)Known for one4K Upscaling, Game Bar, HDR10+, Motion Xcelerator, Adaptive Sound, Object Tracking Sound, Samsung Health, AirPlay 2, Karaoke Mode, Works With Google Assistant, Works With Amazon Alexa
Weight & dimensions8 differ
Width (with stand)Differs932 mm1224.6 mm
Depth (with stand)Differs170 mm199 mm
Height (with stand)Differs577 mm760 mm
Weight (with stand)Differs10.1 kg10.3 kg
Width (without stand)Differs932 mm1224.6 mm
Depth (without stand)Differs41.1 mm76.6 mm
Height (without stand)Differs540 mm707.8 mm
Weight (without stand)Differs9.8 kg10 kg
Stand widthKnown for one81.3 cm
Stand depthKnown for one19.9 cm
Packaging data4 differ
Package widthDiffers1060 mm1354 mm
Package depthDiffers152 mm127 mm
Package heightDiffers660 mm810 mm
Package weightDiffers12.7 kg14.5 kg
Package typeKnown for oneBox
Packaging contentidentical
Cables includedKnown for oneAC
Remote control includedKnown for oneYes
Technical detailsidentical
ProcessorKnown for oneα11 AI Processor 4K Gen3
Sound technologyKnown for oneα11 AI Sound Pro (Virtual 11.1.2 Up-mix) / AI Object Remastering Ultra / Precision Sound Master Pro / Adaptive Acoustic Tuning / WOW Orchestra
Other featuresidentical
Country of originKnown for onePoland

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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