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- UltraFine 27UL550 vs UltraFine 27UP850K
LG UltraFine 27UL550 vs LG UltraFine 27UP850K
What UltraFine 27UL550 does better (0) and where UltraFine 27UP850K wins (3) — every spec side by side.
vs
6.2Screen7.6
5.6Design & ergonomics5.4
Dimensions
Size comparison
UltraFine 27UL550UltraFine 27UP850K
| UltraFine 27UL550 | UltraFine 27UP850K | Difference | |
|---|---|---|---|
| Height | 572 mm | 459 mm | +113 mm |
| Width | 623 mm | 614 mm | +9 mm |
| Depth | 230 mm | 239 mm | −9 mm |
| Weight | 6 kg | 5.9 kg | +0.1 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is UltraFine 27UL550 better than UltraFine 27UP850K?
UltraFine 27UL550 has no measurable advantages in this pair.
Why is UltraFine 27UP850K better than UltraFine 27UL550?
- Brightness (typical)300 nits vs 400 nits+33%
- HDRHDR10 vs DisplayHDR 400
- Contrast ratio (static)1,000:1 vs 1,200:1+20%
Specifications
Side by side
| Display | ||
| Screen size | 27″ | 27″ |
| Resolution | 3840 × 2160 | 3840 × 2160 |
| Resolution class | 4K UHD | 4K UHD |
| Pixel density | 163 ppi | 163 ppi |
| Aspect ratio | 16:9 | 16:9 |
| Panel type | IPS | IPS |
| Refresh rate | 61 Hz | 60 Hz |
| Brightness (typical) | 300 nits | 400 nits |
| Contrast ratio (static) | 1,000:1 | 1,200:1 |
| Response time | 5 ms | 5 ms |
| Anti-glare / matte screen | Yes | Yes |
| Colour | ||
| sRGB coverage | 98% | — |
| DCI-P3 coverage | — | 98% |
| Colour depth | — | 10 bit |
| HDR | HDR10 | DisplayHDR 400 |
| Connectivity | ||
| USB-C video input (one cable) | — | Yes |
| USB-C charging (Power Delivery) | — | 90 W |
| HDMI inputs | 2 | 2 |
| DisplayPort inputs | 1 | 1 |
| USB hub | — | Yes |
| Built-in speakers | No | Yes |
| Design & ergonomics | ||
| Height adjustment | 110 mm | — |
| Pivot (portrait rotation) | Yes | Yes |
| Swivel | — | No |
| VESA mount | — | 100 × 100 mm |
| Weight | 6 kg | 5.9 kg |
| Width | 623 mm | 614 mm |
| Height | 572 mm | 459 mm |
| Depth | 230 mm | 239 mm |
| Product line | — | LG UltraFine |
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