Customer reviews from lg.com
LG - UltraFine 27UP850K-W 27" 16:9 4K UHD USB-C IPS LCD HDR Monitor, White
Average customer rating
2.3
(4 Reviews)
Rating breakdown 4 reviews
5 Stars
1
4 Stars
0
3 Stars
0
2 Stars
1
1 Star
2
Customer Reviews for LG - UltraFine 27UP850K-W 27" 16:9 4K UHD USB-C IPS LCD HDR Monitor, White
Customer Rating
1
Not reliable
on August 26, 2026
Posted by: OfficeMon
I purchased this monitor in April 2024. It has been on the same desk for the past 2 years, no movement in a private office. My monitor developed a dark line of pixels horizontally across the screen in August 2026, and also has a vertical band of dead pixels. The panel is probably defective. Not reliable and poor quality.
Quality
1
Features
1
Value
3
Response from lg.comBy LG, September 3, 2026
Hi. Thank you for taking the time to post your review regarding your LG 27UP850K-W Monitor. We appreciate you bringing your experience to our attention, as panel performance and long-term reliability are very important to us. To help address display anomalies like pixel lines, try performing a power cycle by disconnecting the monitor power cable and video source for about 60 seconds before reattaching them firmly, and ensure all video cables and output resolutions are properly configured. We want to ensure your setup works as expected and explore all available options for you. Please send us an email at lgdigitalcare@lg.sprinklrsupport.com so we can best assist with your unit ^James
Written by a customer while visiting lg.com
Customer Rating
5
on March 12, 2026
Posted by: Renbar
This is 4th monitor in our household.
Resolution, contrast and color is perfect.
I highly recommend tthis one.
Resolution, contrast and color is perfect.
I highly recommend tthis one.
Response from lg.comBy LG, March 12, 2026
Hello, Renbar! We’re thrilled to see your household rocking its 4th LG monitor — that’s some serious dedication to a great setup. The crisp resolution, contrast, and color you’re enjoying are exactly what we aim for, and it’s awesome to know this LG unit earned your recommendation! For more feedback or questions, please send us an email at lgdigitalcare@lg.sprinklrsupport.com. Thanks for choosing LG! #LifesGood ^James
Written by a customer while visiting lg.com
Customer Rating
1
DO NOT BUY. Unreliable connection
on December 14, 2025
Posted by: whataripoff
from Seattle, WA
USB-C monitor connection randomly disconnects while in-use (tested many cables). Power output is too low to charge any laptop, and USB-A ports do not work with keyboard. Since there is only 1 USB-C port this is super annoying. WOULD NOT RECOMMEND.
Quality
1
Features
1
Value
2
Response from lg.comBy LG, December 16, 2025
Hi. Thank you for sharing your experience with your LG Monitor. We appreciate your feedback regarding the USB-C monitor connection randomly disconnecting, the insufficient power output for laptop charging, and the USB-A ports not functioning properly with a keyboard. To allow us to properly investigate the details of your specific product model and to see if there is anything we can do to assist with this monitor connectivity and port functionality issue being encountered, please send us an email at lgdigitalcare@lg.sprinklrsupport.com if you need further assistance. You can also refer to this helpful link for reference on LG monitor support and connectivity options: https://www.lg.com/us/support/help-library/lg-monitor-connecting-to-usb--20153192333737. ^James
Written by a customer while visiting lg.com
Ratings-Only Reviews
Based on 1 ratings-only review
Overall Customer Rating
2
Features
1
Quality
2
Value
1