LG UltraGear™ 34GX90SA-W

34-inch WQHD (3440×1440) curved OLED gaming monitor with 240Hz, 0.03ms GtG, webOS smart streaming, DisplayHDR™ True Black 400, DCI-P3 98.5%, USB-C (65W PD), HDMI 2.1, and LG Switch conveniences.

Key notes

34" 21:9 WQHD curved OLED with webOS built-in for streaming and cloud gaming.
240Hz refresh and 0.03ms (GtG) for esports-ready responsiveness.
DisplayHDR True Black 400, DCI-P3 98.5% (Typ.), anti-glare/low reflection.
USB-C with up to 65W PD, plus HDMI 2.1 and DP for multi-device setups.
G-SYNC Compatible, FreeSync Premium, AdaptiveSync certified; LG Switch hotkeys.

Hero view of the 34GX90SA-W curved OLED.

Hero view shows the slim curved OLED panel and compact stand.

Summary image of the 34-inch curved OLED.

Summary still highlights the 34" 21:9 curvature and immersive canvas.

webOS streaming interface on the monitor.

webOS smart hub brings LG Channels and major streaming apps without a PC or console.

Video reel shows quick switching between webOS entertainment and gameplay on the curved screen.

Stream, browse, or jump into cloud gaming using the included remote and webOS UI.

Desk setup showing USB-C power and data.

USB-C delivers display, data, and up to 65W charging—one cable to dock a laptop.

Advanced gaming tools include Low Latency, Black Stabilizer, Crosshair, and FPS Counter.

Certified for NVIDIA G-SYNC Compatible, VESA AdaptiveSync, and AMD FreeSync Premium.

Minimal desk setup with the curved monitor.

Clean L-stand design keeps the 34" curve stable while minimising desk clutter.

*Images are simulated to enhance feature understanding and may differ from actual use.

(34GX90SA-W)

LG UltraGear™ 34GX90SA-W

34-inch 21:9 curved OLED gaming monitor with 3440 x 1440 resolution, 240 Hz refresh, 0.03 ms GtG response, DCI-P3 wide gamut, DisplayHDR True Black, and tilt/height/swivel ergonomics.

Key Specs

Display Size	34 in
Resolution	3440 x 1440
Panel / Aspect / Curve	OLED, 21:9, 800R, Anti-Glare
Brightness (Typ.)	275 cd/m2
Colour Gamut (Typ.)	DCI-P3 98.5% (CIE1976)
Refresh Rate (Max.)	240 Hz
Response Time	0.03 ms (GtG)
Stand Adjustments	Tilt / Height / Swivel
USB-C Power Delivery	65 W

All Specifications

Display

Size (inch / cm)	34 / 86.2
Aspect Ratio	21:9
Panel Type	OLED
Surface Treatment	Anti-Glare
Resolution	3440 x 1440
Pixel Pitch	0.231 x 0.231 mm
Colour Depth	1.07B
Viewing Angle (CR≥10)	178 deg (R/L), 178 deg (U/D)
Brightness (Typ./Min.)	275 / 250 cd/m2
Contrast Ratio (Typ./Min.)	1,500,000:1 / 1,200,000:1
Colour Gamut (Typ./Min.)	DCI-P3 98.5% / 94.0% (CIE1976)
Curvature	800R
Refresh Rate (Max.)	240 Hz
Response Time	0.03 ms (GtG)

Connectivity

HDMI	Yes (2)
DisplayPort	Yes (1, DP 1.4 DSC)
USB-C	Yes (data + display, 65 W PD)
USB Downstream	Yes (2, USB 2.0)
USB Upstream	Via USB-C
LAN (RJ-45)	Yes
Headphone Out	3-pole (sound)
KVM / Daisy Chain	No / No

Features

HDR10 / VESA DisplayHDR	Yes / DisplayHDR True Black 400
AMD FreeSync	FreeSync Premium
NVIDIA G-SYNC Compatible	Yes
VRR	Yes
Auto Brightness	Yes
Colour Weakness	No
Smart Energy Saving	Yes
Factory Calibrated	Yes
PIP / PBP	Yes / 2PBP
Flicker Safe	No
Dynamic Action Sync / Black Stabiliser	Yes / Yes
Crosshair / FPS Counter	Yes / Yes
Reader Mode	Yes
Super Resolution+	No
Dolby Vision / Mini-LED / Nano IPS	No / No / No
Motion Blur Reduction / Overclocking	No / No
RGB Lighting	Hexagon Lighting
User Defined Key / Auto Input Switch	Yes / No
HDR Effect	Yes

Mechanical

Display Position Adjustments	Tilt / Height / Swivel
Wall Mount	100 x 100 mm

Sound

Speaker	7 W x 2
Bluetooth Audio	Yes
DTS Headphone:X / MaxxAudio / Rich Bass	No / No / No

Dimensions / Weights

Shipping (W x H x D)	927 x 295 x 550 mm
With Stand (W x H x D)	784.1 x 580.4 x 291.8 mm (up) / 784.1 x 470.4 x 291.8 mm (down)
Without Stand (W x H x D)	784.1 x 358.3 x 167.1 mm
Weight Shipping / With Stand / Without Stand	15.5 kg / 10.4 kg / 6.2 kg