RATED
Excellent
9.6/10
33.9″ LG 34GX90SB – Full Specifications
The LG 34GX90SB is a 33.9-inch curved OLED gaming monitor that adds webOS 26, so it can run streaming apps and cloud gaming without a PC attached.
LG●Monitor
Display
33.9 in, OLED, 3440 × 1440
33.9
Refresh Rate
48–240 Hz
48
Brightness
275 nits
Contrast Ratio
1500000:1
1500000
Overview
The LG 34GX90SB is a 33.9-inch curved OLED gaming monitor that adds webOS 26, so it can run streaming apps and cloud gaming without a PC attached. Its 3440 × 1440 panel runs at 240 Hz with a 0.03 ms response time, 98.5% DCI-P3 coverage and DisplayHDR 400 True Black certification, reaching 1300 nits at peak from a 275 nits typical level. USB-C supplies 65W, and HDMI 2.1 and DisplayPort 1.4 handle consoles and PCs. An 800R curve, 2 × 5 W speakers and a 10.4 kg stand complete a 34-inch OLED ultrawide for gaming.
- 33.9-inch curved OLED, 3440 × 1440
- 240 Hz refresh, 0.03 ms response
- DisplayHDR 400 True Black, 1300 nits peak
- USB-C 65W, HDMI 2.1, DisplayPort 1.4
- webOS 26 with Wi-Fi and speakers
Pros & Cons
Pros
- OLED pixels give near-perfect black levels
- 240 Hz and 0.03 ms keep action crisp
- webOS 26 runs streaming apps without a PC
- 65W USB-C handles laptop power and video
- 98.5% DCI-P3 delivers vivid wide colour
Cons
- Typical brightness is 275 nits, modest for bright rooms
- No pivot, so portrait use is impossible
- 10.4 kg with stand demands a sturdy desk
- OLED burn-in risk with static desktop use
Score & Ratings
9.6/10
Excellent
Model Information
8
| Specification | Value |
|---|---|
| Brand | LG |
| Series | UltraGear |
| Model | 34GX90SB |
| Model Alias |
|
| Full Product Name | LG UltraGear 34GX90SB |
| Model Year | 2026 |
| Monitor Type | Gaming Monitor |
| Available Colors | White |
Display & Panel
16
| Specification | Value |
|---|---|
| Screen Size | 33.9 in |
| Exact Diagonal | 33.86 in |
| Screen Shape | Curved |
| Radius of Curvature | 800R |
| Screen Format | UltraWide |
| Aspect Ratio | 2.389:1 |
| Active Display Width | 795 mm |
| Active Display Height | 333 mm |
| Display Area | 94.32% |
| Panel Type | OLED |
| Panel Technology | OLED |
| Panel Manufacturer | LG Display |
| Self-Emissive Display | Yes |
| 3D Support | No |
| Screen Coating | Anti-glare / Matte |
| Anti-Reflection Treatment | AGLR low-reflection coating |
33.9" Display Size (86.1 cm) 21:9
Resolution & Pixel Details
3
| Specification | Value |
|---|---|
| Native Resolution | 3440 × 1440 |
| Pixel Density | 110 ppi |
| Pixel Pitch | 0.231 mm |
Picture Quality & Color
11
| Specification | Value |
|---|---|
| Panel Bit Depth | 10-bit |
| FRC | No |
| Display Colors | 1.07 billion |
| Total Color Bits | 30-bit |
| Typical Brightness | 275 nits |
| Peak Brightness | 1300 nits |
| HDR Support | Yes |
| HDR Formats |
|
| HDR Certification |
|
| DCI-P3 Coverage | 98.5% |
| Factory Calibration | Yes |
DESK DISTANCE FIT
65cm
CompactIdeal FitWideUltra-Wide
Fills more of your view — great for productivity, may need slight head turns toward the edges.
Refresh Rate, Response & Gaming
13
| Specification | Value |
|---|---|
| Refresh Rate Range | 48–240 Hz |
| Minimum Response Time | 0.03 ms |
| Input Lag | 2.9 ms |
| Variable Refresh Rate | Yes |
| Adaptive-Sync | VESA AdaptiveSync Display 240 |
| AMD FreeSync | Premium Pro |
| NVIDIA G-Sync | Compatible |
| Black Stabilizer | Yes |
| Crosshair | Yes |
| FPS Counter | Yes |
| Dynamic Action Sync | Yes |
| Picture-by-Picture | Yes |
| Picture-in-Picture | Yes |
Ports & Connectivity
12
| Specification | Value |
|---|---|
| HDMI Ports |
|
| HDMI Version | HDMI 2.1 |
| DisplayPort Input | 2× DisplayPort 1.4 |
| DisplayPort Version | DisplayPort 1.4 |
| USB-C Video Input | Yes |
| DisplayPort Alt Mode | Yes |
| Display Stream Compression | DSC |
| USB-C Input | 1× USB-C 3.2 |
| USB-C Power Delivery | 65W |
| USB-A Ports |
|
| Audio Output | 3.5 mm |
| Headphone Output | Yes |
Ports & Connections
Audio, Camera, Network & Smart Features
10
| Specification | Value |
|---|---|
| Built-In Speakers | Yes |
| Speaker Configuration | 2 × 5 W |
| Audio Technologies | AI Sound Pro |
| Built-In Camera | No |
| Smart Monitor | Yes |
| Operating System | webOS 26 |
| Wi-Fi | Yes |
| Wi-Fi Standards | 802.11a / 802.11b / 802.11g / 802.11n / 802.11ac |
| LAN | Yes |
| Smart Home Platform | LG ThinQ |
Ergonomics & Stand
11
| Specification | Value |
|---|---|
| VESA Mount | Yes |
| Removable Stand | Yes |
| Height Adjustment | Yes |
| Height Adjustment Range | 110 mm |
| Tilt Adjustment | Yes |
| Forward Tilt | 8° |
| Backward Tilt | 15° |
| Swivel Adjustment | Yes |
| Left Swivel | 30° |
| Right Swivel | 30° |
| Pivot Adjustment | No |
Dimensions, Weight & Design
8
| Specification | Value |
|---|---|
| Dimensions With Stand | 784 × 470 × 292 mm |
| Dimensions Without Stand | 784 × 358 × 167.6 mm |
| Weight With Stand | 10.4 kg |
| Weight Without Stand | 6.2 kg |
| Stand Depth | 292 mm |
| Bezel Design | 4-Side virtually borderless Design |
| RGB Lighting | Yes |
| Lighting System | Unity Hexagon Lighting |
Power & Operating Conditions 13
| Specification | Value |
|---|---|
| 110V Input Range | 100–120V |
| 220V Input Range | 220–240V |
| AC Frequency | 50–60 Hz |
| Electric Current | 13.5 A |
| Average Power Consumption | 45 W |
| Sleep Consumption | 0.5 W |
| Off Consumption | 0.5 W |
| Operating Temperature | 0–40°C |
| Operating Humidity | 20–80% |
| Operating Altitude | 3658 m |
| Storage Temperature | -20–60°C |
| Storage Humidity | 20–80% |
| Storage Altitude | 12192 m |
Eye Care, Protection & Additional Features
9
| Specification | Value |
|---|---|
| Reader Mode | Yes |
| Auto Brightness | Yes |
| Ambient Light Sensor | Yes |
| Desktop Control Software | Dual Controller |
| Monitor Management Software | LG Switch |
| Auto Input Switching | Yes |
| AI Visual | AI Picture Pro |
| Smart Energy Saving | Yes |
| Additional Monitor Features |
|
Certifications, Standards & Licenses 10
| Specification | Value |
|---|---|
| VESA DisplayHDR |
|
| VESA AdaptiveSync | VESA AdaptiveSync Display 240 |
| RoHS | Compliant |
| CE | Certified |
| FCC-B | Certified |
| J-Moss | Compliant |
| PSE | Certified |
| UL | UL (cUL) |
| VCCI | Certified |
| TÜV Type Approval | TÜV Type |
Included Accessories
5
| Specification | Value |
|---|---|
| HDMI Cable | Included |
| DisplayPort Cable | Included |
| USB-C Cable | Included |
| USB Type-C Cable | Included |
| Remote Control | Included |
Packaging Information 2
| Specification | Value |
|---|---|
| Package Dimensions | 927 × 550 × 295 mm |
| Package Weight | 15.5 kg |
⚡
Estimated Running Cost
Based on this product's rated power draw, not an independent lab measurement — actual usage varies with settings and content.
Daily₹3.12
Monthly₹93.60
Annually₹1,139
Draws less power than 57% of the 701 comparable displays we track.