SUPER UHD 4K HDR Smart LED TV - 55'' Class (54.6'' Diag)
  • Nano Cell™ Display
  • Billion Rich Colors
  • Active HDR with Dolby Vision™
  • webOS 3.5 Smart TV
SUPER UHD 4K HDR Smart LED TV - 55" Class (54.6" Diag)


  • Diagonal Class
    55 inches
    Diagonal Size
    54.6 inches
  • Resolution
    3840 x 2160
    Display Type
    Super UHD TVs
  • Display Format
    4K UHD 2160p
    HDMI Port(s)
    4 (HDCP 2.2)
  • Other Input(s)
    3 USB, 1 RF In (Antenna/Cable), 1 Composite In, 1 Ethernet, 1 Optical, 1 RS232C (Mini Jack)
    Smart TV Operating System
    webOS 3.5
  • Refresh Rate
    TruMotion 240 (Refresh Rate 120Hz)
    Speaker System
    2.2 Channel
  • Other Features
    Active HDR with Dolby Vision™, Nano Cell Display, Wider Color Gamut, Billion Rich Colors, Ultra Luminance, Sound Designed by Harman Kardon™

Picture Quality

  • ULTRA HD (3840x2160)
    Refresh Rate
    TruMotion 240 (Refresh Rate 120Hz)
  • Nano Cell Display
    Active HDR with Dolby Vision™
  • HDR Effect
    Wider Color Gamut
  • True Color Accuracy
    IPS Technology
  • Billion Rich Colors
    Ultra Luminance
  • 4K Upscaler
    Local Dimming


  • webOS 3.5
    Magic Remote Control
  • Natural Voice Recognition
    Universal Control Capability
  • LG Content Store (App Store)
    Full Web Browser
  • Channel Plus

Smart Share

  • Screen Share
    Content Share


  • Speaker System
    2.2 Channel
    Output Power
    40W (Woofer: 20W)
  • Sound Designed by harman/kardon®
    DTS Decoder
  • Surround Mode
    Ultra Surround
    Hi-Fi Audio
  • Wireless Sound Sync


  • Wi-Fi® Built-In
    Wi-Fi® Direct
  • IP Control


  • HDMI®
    4 (HDCP 2.2)
  • RF In (Antenna/Cable)
    Composite In
  • Ethernet
  • RS232C (Mini Jack)


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

Wall Mount

  • VESA
    300 x 300


  • TV without stand (WxHxD)
    48.4" x 27.9" x 2.3"
    W Stand (WxHxD)
    48.4" x 30.1" x 9.7"
  • Shipping (WxHxD)
    53.5" x 33.9" x 6.4"
    TV without Stand Weight
    39.9 lbs
  • W Stand Weight
    43.0 lbs
    Shipping Weight
    53.4 lbs

Warranty / UPC

  • UPC

What people are saying

Rated 3 out of 5 by from Great Tv , Expected more apps Very happy with this TV awesom pic quality and resolution but i expected more tv app like major networks would be avialable in the lg store , I cut the cable and i am jost on tv through the internet , LG shoul update to the times with more apps,
Date published: 2019-05-27
Rated 4 out of 5 by from Great TV for the price I love the overall look of the tv. It has a nice thin border and sleek screen. The picture is great, although it is my first 4k tv, so i dont have much experience to really compare it to anything else. Sound is good, gets plenty loud. My only con would be its been a little difficult to get the picture settings just right for when im playing rdr2 on ps4, its a little too dark and hard to see. It can also get pretty hot after long usage and heats my room..
Date published: 2019-03-27
Rated 5 out of 5 by from nice tv nice tv but needs rca out puts there is no rca outputs
Date published: 2019-02-01
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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.

Comparable model to this discontinued Model

Asked by: Joeboosh
The 2019 model that is comparable to the discontinued LG SUPER UHD 4K HDR Smart LED TV - 55'' Class (54.6'' Diag), Model # 55SJ8500 is the LG Nano 8 Series 4K 55 inch Class Smart UHD NanoCell TV w/ AI ThinQ® (54.6'' Diag), Model # 55SM8600PUA...^IFV
Answered by: Ivanf
Date published: 2019-09-18

Will this tv play a video file saved as a .ISO image?

Asked by: george60
Hi George60. You cannot watch ISO videos directly on the LG SUPER UHD 4K HDR Smart LED TV - 55" Class (54.6" Diag), Model # 55SJ8500 or any of our TVs via USB. To watch them on our TVs, you would need to first convert ISO files to a format that is fully compatible with our TVs...^IFV
Answered by: LGJoel
Date published: 2018-09-13

Hello, do you have any tv 4K super hd with 3d to buy now or a future?

Asked by: Ronmel
We would love to help you find a TV that fits your needs best. Our support team is available via Twitter @LGUSSupport, Facebook https://www.facebook.com/LGUSA/ or you can give us a call at 800-243-0000. ^CP
Answered by: ChrisPSM
Date published: 2018-07-14

Can I use a Sonos sound system with this tv?

Asked by: Sabatier
HI Sabatier. Unfortunately, without knowledge of which SONOS sound system you are inquiring about, we cannot specifically say how you would connect it to the LG SUPER UHD 4K HDR Smart LED TV - 55" Class (54.6" Diag), Model # 55SJ8500. However, the Sonos wireless sound system works by connecting one single speaker to your home network, then adding more Sonos units (up to a maximum of 32, dotted around the house) into the mix using a dedicated secure wireless mesh network known as Sonosnet. The SONOS Sound System comprises a number of devices such as Sonos Play:1, SONOS Play:3, Sonos Play:5, Sonos Playbar, Sonos Playbase and the Sonos Sub, all of which are designed to work with a variety of products from various manufacturers. We recommend that you contact SONOS for any inquiries about connecting it to your home network so that it can work in conjunction with the 55SJ8500...^IFV
Answered by: LGJoel
Date published: 2018-03-16

Does this model LG 55SJ8500 support x265 mkv videos ?

Asked by: davoud
Mkv supported info - Video: MPEG-2, MPEG-4, H.264/AVC, VP8, VP9, HEVC Audio: Dolby Digital, Dolby Digital Plus, AAC, PCM, DTS, MPEG-1 Layer I, II, MPEG-1 Layer III (MP3)
Answered by: Amber C
Date published: 2018-03-16

How many Local Dimming Zones are there for the 55” and 65” models?

Asked by: HowellJim44
The SUPER UHD 4K HDR Smart LED TV - 55" Class (54.6" Diag), Model # 55SJ8500 and the SJ8500 series TVs are LED edge backlight with local dimming which works differently from Full-array (Direct Backlighting) TVs that have LEDs placed all over behind the TV's LCD panel ...^IFV
Answered by: LGJoel
Date published: 2018-06-26

Is the screen on the 55SJ8500 glass or plastic?

Asked by: RiC48
There are a few layers for the screen on the LG SUPER UHD 4K HDR Smart LED TV w/ Nano Cell™ Display - 55" Class (54.6" Diag), Model # 55SJ8500 and the outer layer is a glass substrate...^IFV
Answered by: LGJoel
Date published: 2018-01-20

how do i change web browsers..this one wont support dish anywhere app

Asked by: jeffdice13
We apologize for the inconvenience, this TV does not have the ability to change web browsers at this time. We will let our R&D team know you would like us to offer the Dish anywhere app. If you are in need of any assistance, have additional questions, or would just like to see our helpful tips, check us out on Twitter @LGUSSupport ^CP
Answered by: ChrisPSM
Date published: 2018-03-25
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