LG · WOLED

39GX900A-B

Name: LG 39GX900A-B
Brand: LG
SKU: 39GX900A-B

39-inch WOLED with 3440 × 1440 at up to 240Hz and a wider desktop.

39" · 3440 × 1440 · 240Hz native

Exact model: 39GX900A-B

$919.99

In stock at Amazon

Checked Oct 23, 9:00 AM ET. Price details

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LG 39GX900A-B OLED monitor — Product image: LG

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Before you buy.

USB-C carries video and supplies up to 65W. Compare that with your computer's charging needs.

Exact model specifications

Specifications.

Model number: 39GX900A-B
Screen size: 39 inches
Panel technology: WOLED
Native resolution: 3440 × 1440
Maximum at native resolution: 240Hz
Screen format: Ultrawide
Curvature: 800R
Screen coating: Anti-glare
Connections: HDMI 2.1, DisplayPort 1.4, USB-C video, USB-A hub
USB-C video: Yes
USB-C charging: 65W
Built-in speakers: Yes
KVM switch: No
HDR format / certification: VESA DisplayHDR True Black 400
Variable refresh rate: G-SYNC Compatible, FreeSync Premium Pro
Burn-in coverage: Not confirmed

Sources and product image 3 sources

lg.com
UK · Checked 2026-10-21
amazon.com
US · Checked 2026-10-21
inet.se
Sweden · Checked 2026-10-23

Image: LG product image.

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Closest screen match

ASUSWOLED

ROG Swift OLED PG39WCDM

Exact model: PG39WCDM

39" · 3440 × 1440 at 240Hz native

Same 39-inch class and native refresh for gaming.

Compared with 39GX900A-B

USB-C charging: 90W39GX900A-B: 65W
KVM switch: Yes39GX900A-B: No
Built-in speakers: No39GX900A-B: Yes
Documented inputs: DisplayPort 1.4, USB-C video39GX900A-B: HDMI 2.1, DisplayPort 1.4, USB-C video, USB-A hub

USB-C carries video and supplies up to 90W. Compare that with your computer's charging needs.

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View at ASUS Full specifications and sources →

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LGWOLED

39GX90SA-W

Exact model: 39GX90SA-W