4K UHD Smart LED TV - 55'' Class (54.6'' Diag)

  • Consistent 4K picture quality at wide viewing angles
  • Upgrade everything you watch to near-4K quality
  • Enjoy your Smart TV even simpler and faster
  • ENERGY STAR® Qualified
4K UHD Smart LED TV - 55" Class (54.6" Diag)



    • Screen Size
    • 55"


    • IPS Panel
    • Yes
    • ULTRA HD (3840x2160)
    • Yes
    • Refresh Rate
    • TruMotion 120Hz
    • Tru-4K Engine
    • Yes
    • Tru-4K Upscaler
    • Yes
    • Just Scan (1:1 Pixel Matching)
    • Yes
    • Real Cinema 24p
    • Yes
    • 4K UHD File Playback
    • Yes


    • webOS
    • webOS 2.0
    • Processor
    • Quad Core
    • LG Content Store (App Store)
    • Yes
    • Web Browser
    • Yes


    • Screen Share
    • Yes
    • Content Share
    • Yes


    • Speaker System
    • 2 Channel
    • Output Power
    • 20W
    • Mono/Stereo/Dual (MTS/SAP)
    • Yes
    • Dolby® Digital Decoder
    • Yes
    • DTS Decoder
    • Yes
    • Clear Voice II
    • Yes


    • Wi-Fi® Direct
    • Yes
    • Wi-Fi® Built-In
    • Yes
    • Yes


    • Video
    • DivX HD
    • Photo
    • JPEG
    • Audio
    • AC3 (Dolby Digital), EAC3, HE-AAC, AAC, MP2, MP3, PCM, DTS, RA, WMA


    • RF in (Antenna/Cable)
    • 1 (Rear)
    • Component Video In
    • 1 (Rear)
    • Composite In (AV)
    • 1 (Shared w/Component)
    • Optical
    • 1 (Rear)
    • HDMI®
    • 3 (Rear)
    • USB 3.0/2.0
    • 0 / 1 (Side)
    • LAN
    • 1 (Rear)


    • ENERGY STAR® Qualified
    • Yes
    • Power Supply (Voltage, Hz)
    • 100V ~ 240V, 50/60 Hz
    • Standby Mode
    • 0.3W


    • VESA
    • 300x300


    • TV without Stand (WxHxD)
    • 48.8” x 28.4” x 2.2”
    • TV with Stand (WxHxD)
    • 48.8” x 30.4” x 9.3”
    • TV Shipping Dimensions (WxHxD)
    • 52.4" x 31.9" x 5.6"
    • TV without Stand weight
    • 39.2 lbs
    • TV with Stand weight
    • 39.9 lbs
    • Shipping Weight
    • 48.9 lbs


    • Limited Warranty
    • 1 Year Parts & Labor
    • UPC
    • 719192601987

What people are saying

Rated 1 out of 5 by from Horrible picture quality Whether I’m streaming Netflix or Hulu or allowing my kids to play Xbox I can’t seem to find the correct settings to not have lagging gameplay. Only way I could even get the image slightly smooth is if I play on pc mode.
Date published: 2020-04-27
Rated 3 out of 5 by from Disney+ I haven't been able to find Disney+ app? Why? And will there be one?
Date published: 2020-02-22
Rated 1 out of 5 by from TV turns on, but The TV turns on, but nothing can be displayed. None of the buttons other than the on off on the remote seem to work. I tried new batteries with no effect. Since there are no buttons other than on off on the TV itself, I have no way of testing the TV to determine whether or not the remote is good. What would you recommend?
Date published: 2020-02-10
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Ask your questions. Share your answers.
Please review the detailed product information and help guides in the
Product Support section for this product prior to posting a question.

Can i download Disney plus on this model tv?

Asked by: MommaOF2babes
Although the app is not available for your TV, there are other options that will allow you stream Disney+ on your LG TV. Disney+ can be streamed on LG compatible devices such as Roku, Xbox One, iPhones, etc. The complete list of devices can be found at www.disneyplus.com under the Ways to Watch section at the bottom of the page.
Answered by: ChrisPSM
Date published: 2020-01-13

Does this tv have HDR?

Asked by: MitchellM
The 4K UHD Smart LED TV - 55'' Class (54.6'' Diag), Model # 55UF6450 was released before HDR standards were set so it does not support HDR...^IFV
Answered by: Ivanf
Date published: 2019-12-05

Can I get Disney+ on this TV? 

Asked by: Lallie88
Unfortunately this model number is not listed as able to receive the Disney+ application. To use this application, you will need a streaming device such as a Firestick.
Answered by: ChrisPSM
Date published: 2019-12-03

Is Hulu still supported on the 55UF6450? I used to be able to watch and now the app is gone from even the LG store. What happened?

Asked by: Poogen
Hulu has removed support from many of our TV's running webOS 3.0 and below. We would recommend reaching out to Hulu regarding your TV being affected.
Answered by: ChrisPSM
Date published: 2019-08-08

Can I download sling or direct tv now or philo on this Tv?

Asked by: Robinson1020
Compatible LG Smart TVs come with Sling TV pre-loaded on the webOS launcher bar once your Smart TV is connected to the Internet. LG Smart TVs using webOS 3.0 or higher support Sling TV and on those TVs that do not come with Sling TV pre-loaded, you will need to search for it by pressing the Home button on your remote, then selecting LG Content Store > Search and entering "Sling" using the on-screen keyboard to download the app and install it on the TV. Regrettably, the LG 4K UHD Smart LED TV - 55" Class (54.6" Diag), Model # 55UF6450 uses webOS 2.0 and is not compatible with the Sling TV app...^IFV
Answered by: Ivanf
Date published: 2019-05-22

Is this tv UF4650 Doesnt support IOS streaming to it?

Asked by: AJ91
Unfortunately iOS devices are not able to screen mirror to our TV's. ^CP
Answered by: ChrisPSM
Date published: 2018-11-16

What is the input lag time for the uf6450

Asked by: Randy5000
Hi Randy2018. Regrettably, Input Lag is not an official television specification and you typically will not see it listed for TVs because it is the amount of time that elapses between the picture being generated by a source and for that image to appear onscreen. So it will vary according to the source and to the TVs settings. The results for Input Lag will also vary according to the which Input Lag Test Method is used. You might be able to find reviews online who have tested the LG 4K UHD Smart LED TV - 55" Class (54.6" Diag), Model # 55UF6450 for Input Lag and posted their results on their sites while identifying which Input Lag Test Method they used. However, keep in mind that this is a 2015 model so reviews for that TV may be hard to find...^IFV
Answered by: LGJoel
Date published: 2018-11-02

Hi, i am using the TV from 2015 onwards. From last few days I am seeing there is no picture and only Sound is coming. Even if when I am turning on the TV its not showing the LG logo screen. Whereas if I pair my TV with youtube i can listen the sound. 

Asked by: Tridib
Hello, hate to hear, sounds like you need a technician. Please give us a call at 1-800-243-0000 or drop us a line on Twitter at @LGUSSupport or on Facebook at @LGUSSupport when you are with the unit. ^AC
Answered by: Amber C
Date published: 2018-03-13
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