4K UHD Smart LED TV - 55'' Class (54.6'' Diag)
  • 8.3M Pixels for 4x the Resolution of Full HD TVs
  • webOS 3.0: The Best Smart TV Just Got Better
  • ENERGY STAR® Qualified
4K UHD Smart LED TV - 55" Class (54.6" Diag)


  • Diagonal Class
    55 inches
    Diagonal Size
    54.6 inches
  • Resolution
    3840 x 2160
    Display Type
  • Display Format
    4K UHD 2160p
    HDMI Port(s)
    3 (HDCP 2.2)
  • Other Input(s)
    1 USB, 1 RF in (Antenna/Cable), 1 Composite In, 1 (shared with composite) Component In, 1 Ethernet, 1 Optical, 1 RS232C (Mini Jack)
    Smart TV Operating System
    webOS 3.0
  • Refresh Rate
    TruMotion 120 (Refresh Rate 60Hz)
    Speaker System
    2.0 Channel
  • Other Features
    IPS Panel, UHD Mastering Engine, Tru Black Panel, 4K Upscaler

Picture Quality

  • ULTRA HD (3840x2160)
    Refresh Rate
    TruMotion 120 (Refresh Rate 60Hz)
  • IPS Panel
    UHD Mastering Engine
  • Tru Black Panel
    4K Upscaler


  • webOS 3.0
    Magic Mobile Connection
  • LG Content Store (App Store)
    Full Web Browser

Smart Share

  • Screen Share
    Content Share


  • Speaker System
    2.0 Channel
    Output Power
  • Mono/Stereo/Dual (MTS/SAP)
    Dolby® Digital Decoder
  • DTS Decoder
    Surround Mode
    Ultra Surround
  • Clear Voice


  • Wi-Fi® Built-In
    Wi-Fi® Direct


  • HDMI®
    3 (HDCP 2.2)
  • RF In (Antenna/Cable)
    Composite In
  • Component In
    1 (shared with composite)
  • Optical
    RS232C (Mini Jack)


  • Power Supply (Voltage, Hz)
    100~240Vac, 50~60Hz
    Standby Mode
    Less than 0.5W
  • ENERGY STAR® Qualified

Wall Mount

  • VESA
    300 x 300


  • TV without Stand (WxHxD)
    48.8" x 28.4" x 2.2"
    TV with Stand (WxHxD)
    48.8" x 30.9" x 9.1"
  • TV Shipping Dimensions (WxHxD)
    52.4" x 32.0" x 6.0"
    TV without Stand Weight
    39.2 lbs
  • TV with Stand Weight
    40.1 lbs
    Shipping Weight
    49.2 lbs

Warranty / UPC

  • UPC
What people are saying
Rated 2 out of 5 by from Disappointed. We’ve had this tv for about 2 years now. It works okay most of the time. It disconnects from the internet every once in a while, and the only way to fix it is to unplug the tv and then plug it back in. The biggest disappointment for me is the fact that LG doesn’t support certain apps, like HBO. And our Hulu app will not update. It is still the old version without profiles. So all the shows are mixed up and hard to find. It updates on all our other TV’s that are not LG. So it has to be the TV. And now we are just stuck with this TV until it dies.
Date published: 2019-04-15
Rated 1 out of 5 by from Died after 19 months I bought this 19 months ago. It died after 19 months. After owning it a little over a year the screen started messing up and the power starting messing up. Its now junk. My money wasted. I will never buy any LG products ever again.
Date published: 2019-03-08
Rated 1 out of 5 by from It's Already Malfunctioning I never write reviews but in this case I thought it was necessary. We bought this TV about a year and a half ago and left it in our old apartment unused. It was cared for extremely well but wasn't our primary TV so we didn't turn it on often. After we moved (which was done professionally and supervised tremendously well) we decided to mount it in our living room, after all that work we sat down and powered it up to find the display was totally messed up! The bottom half of the screen and the top half alternate in a 2 second sequence so that either half has lines all over it in a continuous loop at any given time. I'm so sad that this happened and reading all of the reviews it seems like we're not the only one's experiencing the issue. I had high hopes for LG, and i'm very disappointed, as we really didn't even get a chance to enjoy this TV. Our next purchase will be another brand for sure unless the company does something to rectify this mishap.
Date published: 2019-01-17
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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.

On Hulu it says this TV should have the latest application update but it does not and will not show my extensions I pay for. Can you please help me with this?

Asked by: Leahc
Let's see if we can get that taken care of for you. Send us a message on Twitter at @LGUSSupport or on Facebook https://www.facebook.com/LGUSSupport/ so we can get more info and see what we can do. ^AC
Answered by: Amber C
Date published: 2019-02-13

No app such as Netflix, Amazon, YouTube will launch. Wifi connection is working properly.

Asked by: DaveWashPa
Hate to hear DaveWashPa, let's work together to see if we can get this resolved. Please feel free to give us a call at 1-800-243-0000 when you are with your unit or or simply send us a direct message on Twitter at @LGUSSupport or on Facebook so we can help you out. ^AC
Answered by: amber
Date published: 2018-01-29

Does my LG 55UH6090 support HDR?

Asked by: Chuloc14
Even tho the specs are identical to the 49" model that supports hdr this set will not.
Answered by: Rell42
Date published: 2018-01-24

Does this t.v. support HDR for ps4 pro? I selected the deep color output but the ps4pro is telling me hdr is not supported. I would greatly appreciate a response back.

Asked by: Tjo427
No this tv doesn't support hdr.
Answered by: Rell42
Date published: 2018-01-24

Will this tv work with a wireless keyboards (either USB or bluetooth)?

Asked by: shan1970
The Bluetooth Keyboards that have been tested for compatibility with LG TVs that support Bluetooth are the LOGITECH K360, LOGITECH K400, LOGITECH K750, and LG Electronics MKS-1200. Regrettably, the LG 4K UHD Smart LED TV - 55" Class (54.6" Diag), Model # 55UH6090 does not support Bluetooth nor has it been tested for compatibility with USB Keyboards...^IFV
Answered by: LGJoel
Date published: 2018-01-16

Does this tv have HDR Support

Asked by: Jmacjr28
We apologize for the inconvenience, this TV does not offer HDR support. ^CP
Answered by: ChrisPSM
Date published: 2018-01-03

Can a wireless mouse be hooked to this tv for the web browser

Asked by: Tank1967
We are sorry, however, it does not have that capability. ^AC
Answered by: amber
Date published: 2017-12-28

It says tru motion 120 (refresh rate 60hz) is this a mode or feature to turn off or on? What is the true refresh rate?

Asked by: Lv2h8me
TruMotion is a feature that can be turned off. The true refresh rate of the 55UH6090 is 60Hz. If you are in need of any assistance, have questions, or would just like to see our helpful tips, check us out on Twitter @LGUSSupport ^CP
Answered by: ChrisPSM
Date published: 2017-12-12
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