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4K UHD HDR Smart LED TV - 43" Class (42.5" Diag)

  • 43UJ6300

Key Features

  • 4K Ultra HD Resolution
  • webOS 3.5 Smart TV
  • Active HDR
  • True Color Accuracy

webOS 3.5 Smart TV

webOS brings together all of the most popular streaming video apps, including Netflix, brought to life in 4K, HDR or enhanced with HDR Effect. And webOS gives you access to more than 70 free premium Internet channels through the LG Channel Plus app.

Please check with content providers for both required bandwidth to stream videos. Smart service on product is subject to change. Some apps that appear on the screen image may not be preinstalled; internet connection is required for download.

Channel Plus

Channel the Internet

Get free IP channels including Sports Illustrated, TIME, People and more integrated right into the television. Discover premium new entertainment, sports and lifestyle programming or enjoy old favorites any time.

Watch what you want, when you want

Netflix Recommended TV recognizes Smart TVs that meet strict criteria for a superior Netflix experience, such as easy app access and new features. For the third year in a row, LG TVs have the distinction of being recommended by Netflix!

Netflix streaming membership required. Ultra HD availability subject to your Netflix subscription plan, Internet service, device capabilities, and content availability. Visit

Active HDR with scene by scene optimization

Elevate the HDR experience even higher with Active HDR which optimizes content scene-by-scene. Brights looks brighter, darks look darker and every image looks richer. For the most content choices, Active HDR even supports backward-compatible HLG.

Learn More about Active HDR


HDR technology helps to adjust the brightness and darkness on screen, as you would experience it with your own eye. LG UHD TV offers compatibility with HDR formats such as HDR10 for Blu-ray DVD and HLG for broadcast.

HDR10 and HLG are rendered by LG UHD TV’s exclusive processing. By applying dynamic data produced by LG TV processing on a scene-by-scene basis, all types of content is displayed with improved HDR quality.

True to Life Color

See a more accurate, natural picture with advanced color mapping. True Color Accuracy automatically corrects color distortions for vibrant, lifelike color.

More consistent color and contrast from any seat

The IPS technology in LG TV uses in-plane switching to deliver rich colors and a strong contrast ratio that remain consistent at wide viewing angles. With IPS technology, any seat becomes the best in the house.

Diagonal Class 43 inches
Diagonal Size 42.5 inches
Resolution 3840 x 2160
Display Type 4K UHD TVs
Display Format 4K UHD 2160p
HDMI Port(s) 3 (HDCP 2.2)
Other Input(s) 2 USB, 1 RF In (Antenna/Cable), 1 Composite In, Component In (Shared w/ Composite), 1 Ethernet, 1 Optical
Smart TV Operating System webOS 3.5
Speaker System 2 Channel
Other Features Active HDR, IPS Technology
Ultra HD (3,840 x 2,160) Yes
Refresh Rate TruMotion 120 (Refresh Rate 60Hz)
Active HDR Yes
HDR Effect Yes
True Color Accuracy Yes
IPS Technology Yes
4K Upscaler Yes
webOS 3.5 Yes
Magic Remote Control Standard Remote Only
LG Content Store (App Store) Yes
Full Web Browser Yes
Channel Plus Yes
Screen Share Yes
Content Share Yes
Speaker System 2 Channel
Output Power 20W
DTS Decoder DTS-HD
Surround Mode Ultra Surround
Hi-Fi Audio Yes
Wi-Fi® Built In 802.11ac
Wi-Fi Direct Yes
IP Control Yes
Simplink (HDMI CEC) Yes
HDMI 3 (HDCP 2.2)
RF In (Antenna/Cable) 1
Composite In 1
Component In Shared w/ Composite
Ethernet 1
Optical 1
Power Supply (Voltage, Hz) 100~240Vac 50-60Hz
Power Consumption TBD
Standby Mode 0.5W↓
VESA 200 x 200
Without Stand (WxHxD) 38.5" x 22.6" x 3.2"
W Stand (WxHxD) 38.5" x 24.2" x 7.4"
Shipping (WxHxD) 41.7" x 26.0" x 6.0"
TV Without Stand 18.3 lbs
W Stand Weight 18.5 lbs
Shipping Weight 23.1 lbs
UPC 719192609914

What People Are Saying

Rated 5 out of 5 by from Love it! Bought this a few weeks back. Totally love it!! Especially the live tv!
Date published: 2017-06-21
Rated 3 out of 5 by from Just bought last nite it worked great for about an hour until I started changing settings. I updated it and started changing Color, contrast ect. It then started blinking black then back to picture every few seconds. Then it had stripes of interference of some sort. I unplugged it for 5 minutes. No help. Turned it off for about an hour and so far so good. Can't explain it. Hope it was just a glitch. Also where can I go to understand all the features and explanation of features on tv. The manual that comes with it is a joke.
Date published: 2017-06-18
Rated 3 out of 5 by from Good picture. Was dissapointed that it doesn't have bluetooth or built in chromecast. Should have done more research. Also does not support PS Vue. That's a bummer.
Date published: 2017-06-13
Rated 5 out of 5 by from Excellent Clarity I bought my tv and it has amazing clarity and it is overall a great tv.
Date published: 2017-05-30
Rated 5 out of 5 by from What a picture! Replaced my current LG LCD TV for a newer LED Smart TV, the old one is still working beautifully and will be placed in my bar...I still love it!
Date published: 2017-05-30
Rated 4 out of 5 by from So far pretty happy with this product Has a nice picture great color but still working on s couple of set up issues
Date published: 2017-05-22
Rated 5 out of 5 by from So far this new LG TV has an outstanding picture This TV was a great purchase for the money very crisp and sporting events put you in the stands!
Date published: 2017-05-06
Rated 5 out of 5 by from GREAT Easy to set up, very SMART television and what a beautiful picture!
Date published: 2017-04-15
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We're here to support you with our product.

View 43UJ6300 Product Support

Contact us for any support inquiries.


Ask your questions. Share your answers.
Please first review the detailed product information and help guides in the Product Support section for this product prior to posting a question.

Does the 55UJ6300 have a Magic Remote? Is there a wireless keyboard available or any keyboard available for this unit? Finally, is a special cable required for the 4K Upscaler?

Asked by: fivehole1962
The LG 4K UHD HDR Smart LED TV - 55" Class (54.6" Diag), Model # 55UJ6300 is not Magic Remote compatible and only comes with a standard remote. The 4K upscaler is built-in and all upscaling is done internally.This TV is not Bluetooth enabled so it cannot be paired with Bluetooth Keyboards...^IFV
Answered by: LGJoel
Date published: 2017-06-21

I believe the input lag for this tv is .12 ms. What is the input lag when hdr game mode is enabled?

Asked by: ralph01847
Regrettably, input lag is not an official Television Specification and we do not test TVs for it since it varies depending on the source. However, there are sites that do test our TVs and post their results on their sites and for the LG 4K UHD HDR Smart LED TV - 43" Class (42.5" Diag), Model # 43UJ6300 is listed at 12.0 ms for 4K @ 60 Hz + HDR . When in the Game picture mode or in any picture mode, when the input's icon is set to PC, the TV's input lag is an excellent ~11 ms. However, only the Game picture mode has low input lag for HDR content, as when HDR content is played, when the input's icon is set to PC, the TV acts as though the icon is not PC. These results may differ depending on which testing method is used for testing input lag. The results listed here were obtained using the Leo Bodnar Input Lag testing method...^IFV
Answered by: LGJoel
Date published: 2017-06-21

does this tv support streaming HDR content through the Amazon Video app? According to amazon's website models from LG support streaming HDR: HDR10 models: EF9500, EG9500, EG9600 HDR10 and Dolby Vision models: UH9500, UH8500, UH7700, UH7500, OLEDG6P

Asked by: Navyvet40
The LG 4K UHD HDR Smart LED TV - 43" Class (42.5" Diag), Model # 43UJ6300 supports HDR-10. This TV is a 2017 model and all the models you cited are 2016 models. It appears Amazon have not updated their site to include the 2017 models yet...^IFV
Answered by: LGJoel
Date published: 2017-06-15

Will there be any support for a native Spotify app in the coming future for this tv? (43UJ6300)

Asked by: Vland
The LG 4K UHD HDR Smart LED TV - 43" Class (42.5" Diag), Model # 43UJ6300 has an LG Content Store (App Store) that you can use to search for the Spotify App and download it to the TV...^IFV
Answered by: LGJoel
Date published: 2017-06-07

Can you patch to sound bar via optical mini link cable?

Asked by: MHDRM
We would need some clarification on what an 'optical mini link cable' is. The LG 4K UHD HDR Smart LED TV - 43" Class (42.5" Diag), Model # 43UJ6300 has an Optical Digital Audio Output in the back that can be connected to the Optical Digital Audio Input of a Sound bar using an Optical Digital cable (Also known as a Toslink cable)...^IFV
Answered by: LGJoel
Date published: 2017-06-10

What is the input lag of this model? Is it sub 40ms?

Asked by: Gamerguy
Looks like rtings just reviewed this model. Input lag results for my fellow gamers. In game mode - 1080p @ 60hz : 11.4 ms - 4K @ 60hz : 11.9 Outside game mode - 49.8 ms Fantastic tv for gaming. Very impressive!
Answered by: Gamerguy
Date published: 2017-06-12

What are the diferences betwen this TV antes 43uh6100?

Asked by: Elnoly016
The LG 4K UHD HDR Smart LED TV - 43" Class (42.5" Diag), Model # 43UJ6300 is a 2017 model and the LG 4K UHD HDR Smart LED TV - 43" Class (42.5" Diag), Model # 43UH6100 is a 2016 model. 2017 LG 4K UHD HDR Smart LED TV models run on the webOS 3.5 platform and 2016 LG 4K UHD HDR Smart LED TV run on webOS 3.0 platform....^IFV
Answered by: LGJoel
Date published: 2017-05-29

How do I access LG Channel Plus app on my 49UJ6300? I don't see it in apps section and nothing in LG Apps Store. 

Asked by: Alexbb
We appreciate your interest in this television and its features. The CHANNEL PLUS feature should be listed as a WHITE field in the HOME menu bar. If additional assistance is needed, please contact our Customer Interactive Center at 800-243-0000.
Answered by: NeilE
Date published: 2017-05-25
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