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White curved 39-inch OLED gaming monitor on adjustable stand

LG Electronics

LG Electronics 39GX90SA-W 39" OLED 240Hz gaming monitor

SKU CH-5DWV-0VMR4 MPN 39GX90SA-W

A 39-inch curved OLED gaming monitor with 240 Hz refresh rate, 0.03 ms response time and built-in webOS streaming

  • Screen size39 in (99.1 cm)
  • Display resolution3440 × 1440
  • Refresh frequency240 Hz
  • Panel typeOLED
  • Pixel response time0.03 ms
  • HDR formatHDR10

Size 39"

  • Deep immersion from steep 800R curve on 39" ultrawide
  • Ultra-smooth 240Hz refresh with 0.03ms response for fast gaming
  • Tear-free play via FreeSync Premium and G-SYNC compatible
  • Rich streaming and cloud gaming through built-in webOS platform
  • Vivid HDR detail with 1.5M:1 contrast and 1300-nit peak brightness

39-inch 800R Curved OLED Gaming Monitor

The LG UltraGear 39GX90SA-W combines a 39-inch WQHD OLED panel with an 800R curve, 240Hz refresh rate and 0.03ms response time. Built-in webOS provides direct access to streaming apps and cloud gaming services without a separate PC or console. The white cabinet includes a height-adjustable, swivel and tilt stand.

Suits Competitive and Immersive Gamers

Players who want ultra-fast motion clarity on a wide 21:9 curved OLED will benefit from the 240Hz panel and 0.03ms GtG response. FreeSync Premium and G-Sync Compatible support covers both AMD and NVIDIA GPUs. Buyers needing 4K resolution, higher typical brightness than 275 cd/m², or a flat screen should consider other models.

800R Curvature Defines the Viewing Experience

The 800R curve wraps the 3440 x 1440 panel tightly around the viewer’s field of vision, creating a more immersive feel than shallower curves or flat panels. This curvature radius is the key specification that determines whether the monitor matches the user’s preferred viewing distance and desk setup.

How it compares

Measured against everything we stock in Monitors for Gamers, at today’s prices. Recalculated every night.

Price $1,123.99
Pricier than about 92% of the 839 comparable items (median $189.99).
Screen size 39 in (99.1 cm)
Higher than about 92% of the 814 comparable items (median 27 in).
Refresh frequency 240 Hz
Higher than about 70% of the 735 comparable items (median 180 Hz).

Specifications

Product
Brand nameLG
Product lineUltraGear
Model name39GX90SA-W
Part number39GX90SA-W
Case colorWhite
Display
Screen size39 in (99.1 cm)
Display resolution3440 × 1440
Refresh frequency240 Hz
Panel typeOLED
Pixel response time0.03 ms
HDR formatHDR10
Image brightness275 cd/m2
Screen curvatureCurved
Screen finishLow Glare
Display formatWQHD
Variable refresh rateFreeSync Premium & G-Sync Compatible
Viewing angles178° (H) / 178° (V)
Screen ratio21:9
Contrast1,500,000:1
Colors displayed1.07 Billion
Pixel pitch0.303 mm x 0.303 mm
DisplayHDR certificationDisplayHDR True Black 400
Audio & video
Integrated speakers2 × 7 W
Integrated webcamNo
Ports & slots
HDMI ports2 x HDMI 2.1
DisplayPort connectors1 x DisplayPort 1.4
Video connectors1 x DisplayPort 1.4 / 1 x USB-C (DP Alternative) / 2 x HDMI 2.1
Headphone jack3.5 mm headphone jack
Power
Power drawPower Save/Sleep Mode (Max): Less than 0.5 W
DC Off (Max): Less than 0.5 W
Power supply100–240 VAC, 50/60 Hz
Size & build
Stand adjustabilityHeight, Swivel, Tilt
VESA mounting pattern100 × 100 mm
Product dimensionsWith Stand: 34.95 in W × 23.85 in H × 12.71 in D.
Without Stand: 34.9 in W × 15.9 in H × 7.8 in D.
Product weightWith Stand: 25.2 lb
Weight without Stand: 16.1 lb
Shipping weight17.26 kg
Package size978 × 544 × 333 mm
Compatibility
Supported OSWebOS

Other versions of this model

1 more in the same range

Questions about this item

Will the 800R curve fit on a standard desk?

The 800R curve is quite steep; allow plenty of desk depth so the screen edges stay in view.

Can I use the 240 Hz refresh rate with a console?

Yes, the monitor supports 240 Hz over HDMI 2.1 and is G-Sync Compatible and FreeSync Premium for tear-free console play.

Does the built-in webOS replace a PC for streaming?

webOS24 runs Netflix, Prime Video, Disney+, 300+ LG Channels and cloud services like GeForce NOW, so you can stream and cloud-game without a computer.

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