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55" UH6550 4K UHD Smart LED TV with webOS™ 3.0

  • 55UH6550

Key Features

  • HDR Pro
  • IPS 4K Display
  • Ultra Slim
  • webOS 3.0


HDR Pro adjusts the brightness of your screen to bring a life-like clarity to the images it projects.With LG UHD TV, you can enhance the colors by adjusting the brightness of your screen to bring out every detail. Now, you can enjoy vivid and vibrant content with HDR Pro.

IPS 4K Display

IPS 4K offers outstanding image quality that is four times clearer than Full HD. Besides, Wide Viewing Angle implements undistorted image from any position, and with Stable Screen, viewers can watch clear images without colour blurring pressing the screen.

ColourPrime Pro

ColourPrime Pro creates vivid images using a wide range of colours. The LG UHD TV brings true excitement with richer colours.

Wide Viewing Angle

Due to the nature of the display, the image on the screen maintains its integrity from any viewing angle. This allows you to enjoy dynamic, vibrant colour from every seat in the room.

Ultra Luminance Plus

Ultra Luminance Plus sends excess current from dark areas to brighter areas to enhance contrast. Combine the LG Super UHD TV’s excellent ability to express darkness with its distinct contrast between dark and light, and you have an image that is as sharp and clear as real life.

3D Colour Mapping

3D colour Mapping expresses lifelike colour through its 3D Gamut Mapping algorithm. It minimizes colour distortion, allowing viewers to enjoy remarkably natural colour.

Local Dimming

Local Dimming adjusts the light by dividing the TV screen into multiple blocks. As the light is controlled independently in each block, details are clearly expressed in each area of the screen. This enables viewers to enjoy deeper blacks and clear, sharp images.


ULTRA Slim delivers an innovative thin, sleek TV design. This ULTRA Slim design not only provides excellent space efficiency but also enhances your modern, aesthetic decor.

ULTRA Surround

ULTRA Surround sound enables a conventional two-channel speaker to function as a virtual seven-channel speaker. The addition of ULTRA Surround sound technology maximizes the 4K viewing experience.

webOS 3.0

The LG UHD TVs take the simplicity and fun of webOS to an even greater level of entertainment with webOS 3.0. For one reason, and one reason only – so you can easily stay on top of your prime time viewing. *webOS GUI may differ by country.

Display Type LED
Screen Size 65"
Resolution 3840 x 2160
Backlight Edge
Refresh Rate TruMotion 120 (Refresh Rate 60Hz)
3D No
Panel Type True Black Panel
Viewing Angle Wide viewing angle
Dimming Local Dimming
Analog TV Reception Yes (NTSC)
Digital TV Reception (Terrestrial,Cable) Yes
Picture Engine UHD Mastering Engine
Ultra Luminance Yes
ColourPrime ColourPrime Pro
3D Colour Mapping Yes
Illuminance Sensor White Sensor
Colour Depth No
4K Upscaler Yes
Dynamic Scanning No
Smart Content Optimizer Yes
Contrast Maximizer No
Audio Output / Speaker System 20W / 2.0ch
Dolby® Digital Decoder Yes
DTS Decoder Yes DTS M6
Mono / Stereo / Dual (MTS / SAP) Yes
Surround Mode ULTRA Surround
harman/kardon Sound No
Magic Sound Tuning Ready
Smart Sound Mode Yes
Clear Voice Clear Voice III
Hi-Fi Audio Yes
TV Installation Type Magic Sound Tuning
Wireless Sound Sync / Private Sound Sync Yes
Audio Codec AC3(Dolby Digital), EAC3, HE-AAC, AAC, MP2, MP3, PCM, DTS, DTS-HD, DTS Express, WMA
CPU Quad
HEVC Decoder 4K@60fps,10bit
VP9 Decoder 4K@60fps, 8bit
Bluetooth Yes
Magic Zoom Ready
Magic Mobile Connection Yes
STB Control Ready
My Content Yes
My Channels Yes
My Starter Yes
Channel Advisor Yes
Multi-view Yes
LG Content Store Yes
IoTV Yes
Web Browser Yes
Mobile App(LG TV Plus) Yes
Mobile TV On Yes
WiDi Yes
Miracast Yes
Content Sharing Yes
Natural Voice Recognition No
Speech To Text No
Simplink (HDMI CEC) Yes
External Device App Download for USB Yes
Simultaneous Audio No
Block access to harmful site Yes
OSD Language 4 Languages
HDMI 6G : 422 / HDR Support 2 (6G) Side
1 (6G) Rear
USB 1 (2.0: 1) Side
1 (2.0: 1) Rear
RF 1 Rear
Composite in (CVBS+ Audio) 1 (Horizontal) Rear
Component In (Y,Pb,Pr + Audio) 1 (Composite in Share) Rear
Digital Audio Out (Optical) 1 Rear
LAN 1 Rear
RS-232C (Control / SVC) 1 (Phone Jack Type) Rear
Headphone Out / Line Out No
# of 3D Glasses (Model Number) No
Remote Controller L-Con
Component / AV Gender No
Power Cable Yes
Owner's Manual Yes
ENERGY STAR® Qualified Yes
Power Supply (Voltage, Hz) 100V ~ 240V, 50/60 Hz
Power Consumption TBD
Standby Mode 0.5W
TV without Stand (W x H x D) 1240 x 721 x 60.9mm
48.82” x 28.39” x 2.4”
TV with Stand (W x H x D) 1240 x 776 x 216mm
48.82” x 30.55” x 8.5”
Shipping Dimensions (W x H x D) 1360 x 835 x 152mm
53.54” x 32.87” x 5.98”
TV without Stand Weight 16.5kg, 36.34lbs
TV with Stand Weight 16.8kg, 37lbs
Shipping Weight 20.9kg, 46.04lbs
VESA Size 300 x 300
UPC 719192605039
Limited Warranty 1 Year Parts & Labour

What People Are Saying

Rated 2 out of 5 by from Disappinting THIS IS MY 2ND REVIEW BECAUSE LG DIDN'T POST MY FIRST ONE. I bought this tv to add to our TV experience. So far the experience has been someone disappointing. The tv falls shorts on it motion blur capabilities, especially when watching sports or movies with fast moving objects. Service provided suggestions but blurred images are frequent with fast moving images. It doesn't matter if it is a hockey puck or an airplane flying in the background while watching a movie. It also doesn't have the ability of other tv brands to be powered on with an Apple TV remote unless the Appel tv remote is pointed perfectly at tv; not the end of the world be frustrating to need 2 remotes handy.
Date published: 2017-02-09
Rated 4 out of 5 by from Nice and clear I bought this TV 2 months ago and have been quite happy with the performance. A couple of things stand out though. There is a lag in the sound when using my Yamaha sound system as the output device, It's not much but enough to be aggravating at times.I'm using HDMI at present for everything but I will try the Optical sound method soon. When I use the Netflix or Utube apps, the TV disconnects from my sound system and uses the TV sound.Haven't figured this one out yet. Definitely use the option to use a phone app so you can use the keypad for keyboard functions (like network passwords, searching etc), if you don't have the magic controller, which I'm not buying for $200. You can also use the phone app to control the pointer function on the TV. You should consider buying this TV for the great picture and lots of smart apps.
Date published: 2016-12-18
Rated 4 out of 5 by from Great quality and features, not perfect upscaling I really like the quality of picture even for lower resolution content. WebOS is awesome - very usable. Just one thing about upscaling - when there is movement on the screen - it seems to move faster than it should. Probably it's related to higher refresh rate but it looks weird sometimes.
Date published: 2016-12-09
Rated 3 out of 5 by from Nice Picture Only had this a few days but the first day the sound was off, turned it off and on and it went back to normal. Will monitor this issue. Picture is great, speaker sound is much better than what I previously had. Looking forward to getting 4k service with my provider to see a difference.
Date published: 2016-11-15
Rated 4 out of 5 by from Image is great, sound not so much I recently bought this model, change it 3 times. I love the image and the look of it. The sound make a disturbing vibrating noise.. I close the TV and re start it.. This can happen 2-3 in an evening. Not sure if I will keep or return it again...
Date published: 2016-08-01
Rated 5 out of 5 by from Great colour and features! Great tv. Color is fantastic...We loved it so much we went and bought another TV.
Date published: 2016-03-31
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