LG 49SJ800T 49” Super Ultra HD 4K Smart TV


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Product Summary

  • Energy efficiency (NEA): 4 Ticks
  • IPS Display
  • Billion Rich Colors
  • Active HDR with Dolby Vision
  • Ultra Surround Sound
  • Netflix Recommended TV
  • webOS 3.5 Smart TV

49” Super UHD 4K TV
Model Number: 49SJ800T


Redefining LED TV with Nano Cell™ technology

Nano Cell™ technology, for rich, accurate colors

Colors to impress through billion rich colors

With over a billion colors, enjoy your content in an abundance of color and life for an immersive picture experience.

Stellar color precision thanks to nano particles

Nano Cell™ technology maximizes the display's color quality right in the TV panel. Enjoy accurate colors with no color shift or distortion.

It’s time to re-evaluate your TV viewing habit

Enjoy your living room to the fullest as LG IPS 4K displays maintains accurate colors at any angle. Now everyone on the couch will have an ideal viewing experience.

The optimal viewing experience from any angle

Nano Cell™ Display enhances off-axis color consistency and eliminates worries about color distortion due to viewing angle.

*The relative size of the color gamut set at 100% when viewed from the center (0 degree).
*The data is based on LG internal research.

Active HDR, unlike other conventional HDRs

LG SUPER UHD TV supports premium HDR content mastered by Dolby Vision™
and is also compatible with generic HDR10 and HLG. LG’s Active HDR technology optimizes HDR picture scene by scene for a life-like viewing experience.

*The compatibility for HDR playback may vary by the format and country.

Elegant design meets superb function

The distinctive metallic body flaunts clean lines and sleek curves unlike any other television. LG SUPER UHD TV's understated elegance turns heads, even when it's powered off.

*The logo on TV stand may differ by country.

Powerful sound co-designed by harman/kardon®

The LG onboard speaker system has been co-designed by the sound experts of harman/kardon®, and then custom-tuned to provide clean, powerful, full-range audio 

webOS 3.5 simple and fun to use

With the Magic Remote and uniquely refined webOS 3.5 launcher bar, dive into a limitless world of premium content from all of the most popular entertainment providers.

* webOS GUI may differ by country.
* Services are subject to availability, may require subscription and could vary across products and platforms. Internet connection required.
* Magic remote included in box with selected webOS TV models.
* Netflix Hotkey on the remote may not be available in certain countries.

LG webOS 3.5, security you can trust

The security manager in webOS3.5, earns prestigious CC international security certification and UL CAP2900-1 certification for its ability to provide superior privacy protection. It prevents the installation of unauthorized applications, hacking and leaks of privacy.

Easy and fast way to Netflix 4K HDR content

With easier control and faster access, you can explore and enjoy more of Netflix’s premium 4K HDR content on LG 4K TV.

* webOS GUI may differ by country.
* Magic Remote design and button arrangement may vary by country.



Resolution 3,480 x 2,160
Screen Size 49 inch
Toggle Red Button (HBB TV) Yes
DVB-T2 Yes
Viewing Angle Wide Viewing Angle
Screen Type LED/LCD
Backlight Type Edge
UHDA Premium -
Response Time -
TruMotion (Refresh Rate) TruMotion 200 (Refresh Rate 100Hz)
IPS Technology IPS 4K
Pixel Dimming/ Local Dimming Advanced Local Dimming
Nano Cell Display Yes
Wide Color Gamut DCI 90%
Billion Rich Colours Yes
True Color Accuracy Yes (3D Color Mapping)
Black Enhancement Nano Cell Black
Ultra Luminance Ultra Luminanace
Active Depth Enhancer Contrast Maximizer
Resolution Upscaler 4K Upscaler
HDR Effect (SDR to HDR) Yes
High Dynamic Range (HDR) Dolby Vision/ HDR10/ HLG
Dolby Vision Support IP/ HDMI/ USB
HDR 10 Support Satellite/ IP/ HDMI/ USB
HDR (HLG) Support Satellite/ IP/ USB
HEVC Decoder 4K@60P, 10bit
VP9 Decoder 4K@60P, 10bit
Speaker System 2.2 Ch 40W
Woofer -
Dolby Atmos -
Surround Mode Ultra Surround
Sound designed by harman/ kardon Yes
Magic Sound Tuning Yes
Smart Surround Mode News/ Movie/ Music
Hi-Fi Audio Yes
Wireless Sound Sync Yes
DTS Decoder DTS-HD
Smart Operating Systemweb webOS 3.5
Processor Quad Core
Magic Zoom Live Zoom + Focus Zoom
360 VR Yes
Magic Mobile Connection Yes
OLED Gallery -
Web Browser Yes
LG Content Store (App Store) Yes
Time Machine Yes
Wifi Built-in Yes (802.11.ac)
Smart Share DLNA/ Miracast/ WiFi Direct
Mobile Connection Yes (LG TV Plus Mobile App)
SiImplink HDMI CEC
HDMI 2.0A 4
HDMI 1.4 -
USB 2.0 / 3.0 2 / 1
Composite in 1
Digital Audio Out (Optical) 1
Headphone Out 1
Component In 1
Remote Controller Magic Remote


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