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LG · WOLED

45GX90SA-B

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

45" · 3440 × 1440 · 240Hz native

Exact model: 45GX90SA-B

$1,199.99

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LG 45GX90SA-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
45GX90SA-B
Screen size
45 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
USB-C video
Yes
USB-C charging
65W
Built-in speakers
Yes
KVM switch
No
HDR format / certification
HDR10
Variable refresh rate
G-SYNC Compatible, FreeSync Premium
Burn-in coverage
Not confirmed
Sources and product image 3 sources
  • lg.com

    US · Checked 2026-10-20

  • lg.com

    CA · Checked 2026-10-21

  • lg.com

    United Kingdom · Checked 2026-10-22

Image: LG product image.

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Alternatives for the same use.

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Closest screen match
LG 45GX900A-B OLED monitor
LGWOLED

45GX900A-B

Exact model: 45GX900A-B

45" · 3440 × 1440 at 240Hz native

Same 45-inch class and native refresh for gaming.

Compared with 45GX90SA-B

KVM switch
Yes45GX90SA-B: No
Documented inputs
HDMI 2.1, DisplayPort 1.445GX90SA-B: HDMI 2.1, DisplayPort 1.4, USB-C

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

Compare with this model
$1,200.18

In stock at Amazon

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Check price on AmazonFull specifications and sources →
Built-in KVM option
Acer UM.MXXAA.001 OLED monitor
AcerWOLED

Predator X45 BMIIPHUZX

Exact model: UM.MXXAA.001

44.5" · 3440 × 1440 at 240Hz native

Same 45-inch class and native refresh for gaming.

Compared with 45GX90SA-B

USB-C charging
90W45GX90SA-B: 65W
KVM switch
Yes45GX90SA-B: No
Documented inputs
HDMI, DisplayPort45GX90SA-B: HDMI 2.1, DisplayPort 1.4, USB-C
Burn-in coverage
Covered for 3 years, subject to warranty terms45GX90SA-B: Not confirmed

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

Compare with this model
Price not verified

Stock not verified

View at AcerFull specifications and sources →