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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" Crystal UHD U7020H 4K Samsung Vision AI Smart TV (2026)

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  • 45specifications compared
  • 24differ
  • 21identical
  • 67known 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" Crystal UHD U7020H 4K Samsung Vision AI Smart TV (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" Crystal UHD U7020H 4K Samsung Vision AI Smart TV (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" Crystal UHD U7020H 4K Samsung Vision AI Smart TV (2026) (4 vs 3). Only the Samsung 55" Crystal UHD U7020H 4K Samsung Vision AI Smart TV (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" Crystal UHD U7020H 4K Samsung Vision AI Smart TV (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
112 specifications
A

LG

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

Samsung

55" Crystal UHD U7020H 4K Samsung Vision AI Smart TV (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
Dynamic contrast ratio marketing nameKnown for oneHigh Contrast
TV tuneridentical
Tuner typeAnalog & digitalAnalog & digital
Digital signal format systemKnown for oneDVB-T2, DVB-C
Smart TV1 differ
Smart TVYesYes
Operating system installedDiffersWebOSTizen
Screen mirroringYesYes
Apple AirPlay 2 supportYesYes
Sound mirroringKnown for oneYes
Hybrid Broadcast Broadband TV (HbbTV)Known for oneYes
Hybrid Broadcast Broadband TV (HbbTV) versionKnown for one2.0.4 (IT,GB,DE,CZ,SK,ES,PL,AT,FR,FI,EE,GR,SI,HR,BE,NL,LU,HU,CH,PT,DK,ME)
Smart modesKnown for oneFilmmaker
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
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 oneBlack
VESA mountingYesYes
Panel mounting interfaceDiffers300 x 200 mm200 x 200 mm
Rollable displayKnown for oneNo
Security update termKnown for one31 December 2031
Bezel typeKnown for one3 Bezel-less
Stand colourKnown for oneBlack
Introduction yearKnown for one2026
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 oneUHD Dimming
Game featuresKnown for oneGaming Hub, 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 oneYes
Common interface Plus (CI+) versionKnown for one1.4
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
Power consumption (max)Known for one125 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 kWh120 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 oneMetalStream Design, Samsung TV Plus, Adaptive Sound, Object Tracking Sound Lite, Auto Game Mode (ALLM), Gaming Hub, Samsung Health, Crystal Processor 4K, Q-Symphony, 4K Upscaling, Slim Wall Mount Kit Included
Technical details1 differ
Energy efficiency classKnown for oneF
ProcessorDiffersα11 AI Processor 4K Gen3Crystal Processor 4K
Supported display resolution (HDMI)Known for one4K 60 Hz (for HDMI 1/2/3)
TV designKnown for oneMetal Stream
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
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 kg10.2 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 kg9.9 kg
Stand widthKnown for one81.3 cm
Stand depthKnown for one19.9 cm
Packaging data4 differ
ManualKnown for oneYes
Package widthDiffers1060 mm1354 mm
Package depthDiffers152 mm127 mm
Package heightDiffers660 mm810 mm
Package weightDiffers12.7 kg14.5 kg
Packaging contentidentical
Cables includedKnown for oneAC
Remote control includedKnown for oneYes
Other featuresidentical
Annual energy consumptionKnown for one107 kWh
HDMIKnown for oneYes
Picture modeKnown for oneFilmmaker
Google applicationsKnown for oneGoogle Cast
StandKnown for oneBasic Feet
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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