LG 27UP850K vs 27UP650K: Which 4K UltraFine Should You Buy?
LG pairs these UltraFine models on the same 27 inch 4K IPS canvas with DisplayHDR 400 and up to 95% DCI-P3 claims in the listings. The meaningful fork is docking: 27UP850K adds USB-C power delivery up to 90 W plus downstream USB 3.0 ports, while 27UP650K sticks to HDMI and DisplayPort without USB-C on the listing.
Both include height, tilt, and pivot stands and stay at 60 Hz for office use. Your laptop charging workflow—not panel resolution—should decide the purchase, because color and HDR marketing copy is parallel between SKUs.
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Side by side
| Compare | LG UltraFine 27UP850KLG | LG UltraFine 27UP650KLG |
|---|---|---|
| Resolution | =4K UHD 3840 x 2160 | =4K UHD 3840 x 2160 |
| Panel / HDR | =IPS, DisplayHDR 400 | =IPS, DisplayHDR 400 |
| Color gamut claim | =Up to 95% DCI-P3 | =Up to 95% DCI-P3 |
| USB-C power delivery | Up to 90 W on USB-C | No USB-C on listing |
| Video inputs | =USB-C, DP, dual HDMI | =Dual HDMI, DisplayPort |
| Downstream USB ports | Two USB 3.0 ports | No USB hub on listing |
| Stand adjustment | =Tilt, height, pivot | =Tilt, height, pivot |
| Reader / flicker features | Not highlighted in 850K specs | Reader Mode and Flicker Safe |
The verdict
Buy the 27UP850K when a single USB-C cable should charge a laptop up to 90 W and feed two USB-A peripherals from the monitor. Choose the 27UP650K when your desktop already has a dock or dedicated charger and you only need HDMI or DisplayPort video. Plan separate audio on either model—built-in speaker feedback is mixed on the 850K, and reviewers note no speakers on the 650K HDMI variant.
Where to buy
LG UltraFine 27UP850K
A 27-inch 4K IPS UltraFine with DisplayHDR 400, up to 95% DCI-P3, USB-C power delivery up to 90W, and a tilt/height/pivot stand for laptop-first desks.
LG UltraFine 27UP650K
A 27-inch 4K IPS UltraFine with DisplayHDR 400, up to 95% DCI-P3, HDMI and DisplayPort, and a tilt/height/pivot stand—without USB-C on the listing.
Frequently asked questions
Can both monitors drive a MacBook with one cable?
Only the 27UP850K listing includes USB Type-C with up to 90 W power delivery alongside DisplayPort and two HDMI inputs. The 27UP650K product page and reviews describe traditional HDMI and DisplayPort without USB-C charging. Match your laptop’s wattage needs to the 90 W PD spec before relying on one-cable wiring.
Is picture quality different between 850K and 650K?
Listings cite the same 3840 x 2160 IPS panel class, DisplayHDR 400, and up to 95% DCI-P3 expression for both. LongReview differences focus on ports and audio, not a higher resolution tier. The purchase decision is connectivity and docking, not a step-up panel on paper.