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  • 27” UHD (3840 x 2160) IPS Display
  • VESA DisplayHDR™ 400 with sRGB 99% Color Gamut
  • USB-C with 60W Power Delivery
  • 3-Side Virtually Borderless Display
  • Height / Pivot / Tilt Adjustable Stand
  • AMD FreeSync™
27” IPS 4K UHD VESA HDR400 USB-C Monitor
$ 450.00
#1 UHD Monitor Brand in the U.S. for 3 years in a row*1

#1 UHD Monitor Brand in the U.S. for 3 years in a row*

*The NPD Group, Inc., U.S. Weekly Retail Tracking Service, Monitors, Display Resolution: 3840 x 2160, Based on Dollars, 52 Weeks Ending Apr 4, 2020 vs. same weeks in 2018 & 2019.
HDCP 2.2 Compatible1

HDCP 2.2 Compatible

Connect with confidence: This LG 4K monitor is compatible with the latest HDCP 2.2 copy protection, so it will display video from 4K streaming services, game consoles and Ultra HD Blu-ray disc players.

Clearer, Smoother Image

With Radeon FreeSync™ Technology, you can experience seamless, fluid movement during hi-res, fast-paced games. It virtually eliminates screen tearing and stuttering.

React Faster to The Action

Get the closest thing to real-time gaming. Dynamic Action Sync elevates your gameplay for a pro-level experience. Respond to action, opponents and every moment with minimized input lag and unbelievable performance.

Enemies Have Nowhere to Hide

Your gameplay is never in the dark. Black Stabilizer is your ally to attack or defend against enemies hiding in the shadows. It delivers a pro-level gaming experience for enhanced vision and a jump on the competition.

*Software download required to enable OnScreen Control. For download details, visit LG.com.
*Modifications or updates of the OnScreen Control Software are not notified in advance.


    • Screen Size
    • 27"
    • Display Type
    • IPS
    • Response Time
    • 5ms (GtG at Faster)
    • Refresh Rate
    • 60Hz
    • Color Gamut (Typ.)
    • sRGB 99% (CIE1931)
    • Color Depth (Number of Colors)
    • 1.07B
    • Pixel Pitch (mm)
    • 0.1554 x 0.1554 mm
    • Aspect Ratio
    • 16:9
    • Resolution
    • 3840 x 2160
    • Brightness
    • 350cd (Typ.)/280cd (Min.)
    • Contrast Ratio
    • 700:1 (Min.), 1000:1 (Typ.)
    • Viewing Angle
    • 178º (R/L), 178º (U/D)
    • Surface Treatment
    • Anti-Glare, 3H


    • HDMI
    • Yes x 2
    • DisplayPort
    • Yes x 1
    • USB Type-C
    • Yes
    • Headphone Out
    • Yes
    • USB Down-stream
    • Yes (2ea/ver3.0)


    • Type
    • External Power (Adapter)
    • Input
    • 100-240Vac, 50/60Hz
    • Power Save/Sleep Mode (Max)
    • Less than 0.5W (HDMI/DP input condition)
    • DC Off (Max)
    • Less than 0.3W
    • Power Consumption (Typ.)
    • 40W
    • Power Consumption (Max.)
    • 130W


    • Color Weakness Mode
    • Yes
    • Adaptive Sync
    • AMD FreeSync™
    • Black Stabilizer®
    • Yes
    • Dynamic Action Sync®
    • Yes
    • Flicker Safe
    • Yes
    • Smart Energy Saving
    • Yes
    • Reader Mode
    • Yes
    • Super Resolution+
    • Yes
    • H/W Calibration (True Color Pro)
    • Yes
    • Color Calibrated
    • Yes
    • Dual Controller
    • Yes
    • OnScreen Control (OSC)
    • Yes
    • HDR (High Dynamic Range)
    • Yes (HDR10)
    • VESA DisplayHDR™
    • DisplayHDR™ 400
    • HDR Effect
    • Yes


    • Speaker
    • Yes
    • Speaker Output
    • 5W
    • Maxx Audio
    • Yes
    • Speaker Channel
    • 2ch


    • With Stand (WxHxD)
    • 24.1" x 22.0" x 9.2" (Up), 24.1" x 17.7" x 9.2" (Down)
    • Without Stand (WxHxD)
    • 24.1" x 14.4" x 1.8"
    • Shipping Dimensions (WxHxD)
    • 27.2" x 8.2" x 19.4"
    • With Stand Weight
    • 13.5 lbs
    • Without Stand Weight
    • 10.6 lbs
    • Shipping Weight
    • 19.8 lbs


    • Display Position Adjustments
    • Tilt/Height/Pivot
    • Wall mount size (mm)
    • 100 x 100 mm


    • HDMI
    • Yes
    • USB Type-C
    • Yes


    • Limited Warranty
    • 1 Year Parts and Labor
    • UPC
    • 195174002889

What people are saying

Rated 1 out of 5 by from Defective Monitor and Horrid Support I bought this monitor 2 months ago. Now the monitor flickers continuously. Contacted support for assistance. They requested I pay for my own shipping box so the monitor may go for repair. I suggested LG Support ship me a new monitor so I may send the defective one back using the new monitor box. LG refused. I simply couldn't wait for the repair time and round-trip shipping time as I need a monitor for work. This would be the last time I purchase any LG product. Unbelievable. In my more than 20 years of using a computer monitor, I never had one that went bust in 2 months.
Date published: 2022-11-08
Rated 4 out of 5 by from Works great Works great has one dead pixel right off the bat and color calibration isn’t the easiest
Date published: 2022-11-07
Rated 5 out of 5 by from Bright colors and fine resolution I purchased this monitor in 2021 and continue to be impressed with its bright colors and fine resolution.
Date published: 2022-10-03
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In Stock
Sold and Fulfilled by LG
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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.

Does this monitor have a webcam?

Asked by: MikeB914
The LG 27” IPS 4K UHD VESA HDR400 USB-C Monitor, Model # 27UN850-W does not have a built-in camera...^Ivan
Answered by: Ivanf
Date published: 2022-04-14

Will the monitor USBC hub continue to power/charge MacBook Pro 2020 13 inch when the monitor and computer are in sleep mode? If I plug in the computer while it is in sleep mode, will the monitor wake up with keyboard or do I need to open laptop? 

Asked by: Question 12
The USB Type-C™ port on the LG 27” IPS 4K UHD VESA HDR400 USB-C Monitor, Model # 27UN850-W has a power delivery of up to 60W. It will not charge external devices while in sleep mode. Check the specifications for your MacBook Pro 2020 13" to see what its power requirements are for charging it through a USB Type-C port. You can access the power settings for your 2020 MacBook Pro 13" to set your preferred actions for what it should do when the lid is closed or when it is open. Check the owner's manual or contact Apple for assistance...^Ivan
Answered by: Ivanf
Date published: 2021-10-25

What is the response time and refresh rate of this moniter

Asked by: Koopz04
The specifications on our product detail page on our site for the LG 27” IPS 4K UHD VESA HDR400 USB-C Monitor, Model # 27UN850-W list the monitor as having a Response Time of 5 ms (GtG at Faster) and a Refresh Rate of 60Hz...^IFV
Answered by: Ivanf
Date published: 2021-06-22

I have a 2019 MacBook Air with built in Retina display. Can I use this side-by-side with this monitor via the USB-C connection?

Asked by: JoshL17
The USB Type-C™ port on the LG 27” IPS 4K UHD VESA HDR400 USB-C MonitorIf your 2019 MacBook Air, Model # 27UN850-W offers data transfer and power delivery up to 60W so if your 2019 MacBook Air has a USB Type-C™ port, simply connect that to the monitor's USB Type-C™ port and access the Display settings on your 2019 MacBook Air where you can arrange your displays in any configuration to create an extended desktop. You can set your displays side-by-side to create one large continuous desktop. If you are not sure how to do this, you can refer to your owner's manual for the 2019 MacBook Air or contact Apple for assistance...^IFV
Answered by: Ivanf
Date published: 2022-03-23

Is the LG Electronics - 27UN850-W height adjustable?

Asked by: Mikefrom Pittsburgh
The stand for the LG 27” IPS 4K UHD VESA HDR400 USB-C Monitor, Model # 27UN850-W is height adjustable. If you scroll down to 'Dimensions/Weights' in the specifications for the monitor on its product detail page on our site, the 'With Stand (WxHxD)' are listed as 24.1" x 22.0" x 9.2" (Up), 24.1" x 17.7" x 9.2" (Down), meaning that the monitor has a height of 22.0" with the stand at its highest and a height of 17.7" with the stand at its lowest. The heights are measured from the surface that the monitor is placed on to the top of the monitor...^IFV
Answered by: Ivanf
Date published: 2021-04-27

Which country is this monitor made in?

Asked by: Kamzee
You would need to look at the nameplate attached to the back of the monitor or the shipping carton for the monitor which both identify the Country of Manufacture/Country of Assembly for the LG 27” IPS 4K UHD VESA HDR400 USB-C Monitor, Model # 27UN850-W. LG Electronics is a multinational corporation that maintains manufacturing facilities all over the world...^IFV
Answered by: Ivanf
Date published: 2021-04-02

Can this monitor be mounted on a VESA compliant monitor arm?

Asked by: jj586767
The LG 27” IPS 4K UHD VESA HDR400 USB-C Monitor, Model # 27UN850-W is a VESA compliant display that has a VESA Wall Mount Pattern of 100 x 100 mm. That VESA Wall Mount Pattern can also be used with a VESA compliant monitor arm that supports the monitor's Wall Mount Pattern...^IFV
Answered by: Ivanf
Date published: 2021-01-20
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