  |  |  |  | |
| Available colors | ||||
| Editiorial reviews | ||||
| User rating |
| Screen size | 18.5 in | 27.0 in | 27.0 in | 31.5 in |
|---|---|---|---|---|
| Brightness | 200.0 cd/m² | 450.0 cd/m² | 450.0 cd/m² | 450.0 cd/m² |
| Aspect ratio | 16:9 | 16:9 | 16:9 | 16:9 |
| Colour of product | Black | Black,Silver | Black,Silver | Black |
|---|---|---|---|---|
| Panel design | Flat | Flat | Flat | Flat |
| Built-in USB hub | no | no | yes | yes |
| Built-in camera | no | no | no | no |
| Touchscreen | N/A | no | no | no |
| Screen surface | N/A | Matte | Matte | N/A |
| Built-in speakers | N/A | no | yes | yes |
| DVI Port | no | no | no | no |
|---|---|---|---|---|
| HDCP | yes | yes | yes | yes |
| HDMI | yes | yes | yes | yes |
| HDMI ports quantity | 1 | 2 | 2 | 2 |
| HDMI version | 1.4 | 2.0 | N/A | N/A |
| Headphone output | no | yes | yes | yes |
| VGA (D-Sub) ports quantity | 1 | N/A | N/A | N/A |
| Component input (YPbPr/YCbCr) | N/A | no | no | no |
| Composite input | N/A | no | no | no |
| DisplayPort | N/A | yes | yes | yes |
| Number of HDMI inputs | N/A | 2 | 2 | 2 |
| Headphone outputs quantity | N/A | 1 | 1 | 1 |
| S-video input | N/A | no | no | no |
| Thunderbolt | N/A | no | no | yes |
| USB for video | N/A | no | no | N/A |
| VGA in | N/A | no | no | no |
| Number of DisplayPort inputs | N/A | 1 | 1 | 1 |
| DisplayPort version | N/A | 1.2 | 1.2 | N/A |
| Type of DisplayPort connector | N/A | Standard | Standard | N/A |
| Number of USB 3.0 ports | N/A | N/A | 3 | N/A |
| USB connectors (total) | N/A | N/A | 3 | 2 |
| MHL | N/A | N/A | no | N/A |
| Thunderbolt version | N/A | N/A | N/A | 3 |
| Supported graphics resolutions |
| 3840x2160 | 3840x2160 | 3840x2160 |
|---|---|---|---|---|
| Refresh rate | 60.0 Hz | 60.0 Hz | 60.0 Hz | 60.0 Hz |
| HD type | WXGA | 4K Ultra HD | 4K Ultra HD | 4K Ultra HD |
| Display number of colours | 16.78 million colours | N/A | N/A | N/A |
| Colour gamut (Adobe RGB) | 72.0 % | 80.0 % | N/A | N/A |
| Colour gamut (NTSC) | 72.0 % | N/A | N/A | N/A |
| Dynamic contrast ratio | 8000000:1 | 5000000:1 | 5000000:1 | N/A |
| Display technology | LED | LED | LED | LED |
| Backlight | LED backlight | LED | LED | LED |
| Panel type | TN | IPS | IPS | IPS |
| Response time | 5.0 ms | 5.0 ms | 5.0 ms | 5.0 ms |
| Viewing angle (horizontal) | 90.0 ° | 178.0 ° | 178.0 ° | 178.0 ° |
| Viewing angle (vertical) | 65.0 ° | 178.0 ° | 178.0 ° | 178.0 ° |
| Maximum resolution | N/A | 3840 x 2160 px | 3840 x 2160 px | 3840 x 2160 px |
| Colour depth (per channel) | N/A | 10.0 bit | 10.0 bit | 10.0 bit |
| Contrast ratio | N/A | 1000:1 | 1000:1 | 1300:1 |
| Response time (GtG) | N/A | 5.0 ms | 5.0 ms | 5.0 ms |
| Pixel size | N/A | 0.01 in | 0.01 in | 0.01 in |
| Picture-in-Picture (PIP) | N/A | N/A | no | N/A |
| Pivot function | no | yes | yes | yes |
|---|---|---|---|---|
| Cable lock slot | yes | no | no | N/A |
| Plug and Play | yes | yes | yes | yes |
| Ascendable and submersible | N/A | yes | yes | N/A |
| Tiltable | N/A | yes | yes | yes |
| Memory card reader | N/A | no | no | no |
| Swivel | N/A | N/A | yes | N/A |
| Flicker free | N/A | N/A | yes | N/A |
| VESA mount | yes | yes | yes | yes |
|---|---|---|---|---|
| Type of VESA mount | 100x100mm | 100x100mm | 100x100mm | 100x100mm |
| 3D support (3D-Ready) | N/A | no | no | no |
| Adaptive synchronization | N/A | yes | yes | yes |
| HDR | N/A | yes | yes | yes |
| Sync technology | N/A | AMD Freesync | AMD Freesync | AMD Freesync |
| VESA DisplayHDR certification | N/A | DisplayHDR 400 | DisplayHDR 1000 | DisplayHDR 600 |
Add products
![LG UltraFine 31.5" 4K Display with Thunderbolt 3 review - a large monitor with plenty of I/O [Video]](https://img.productz.com/uploads/review_source/logo/1035/thumb_9to5maccom.gif){kind=logo}
