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What it is
The LG 39GX90SA-W is a 39-inch ultrawide OLED monitor with a 3440 x 1440 resolution and 240Hz refresh rate designed for immersive viewing and gaming.
Who it's for
This large-format display is aimed at users who want expansive ultrawide visuals with excellent colour fidelity (DCI-P3 98.5%) and smooth motion, suitable for gaming or professional media work.
Why it's good
OLED technology offers deep contrast and accurate colours. The built-in 14W speakers provide audio without needing external peripherals. The fast refresh rate supports fluid visuals.
When to choose it
Select this monitor if you need a broad, high-quality ultrawide OLED screen for fast-paced content but don't require a built-in camera.
Specifications
| Audio | |
|---|---|
| Built-in speaker(s) | Yes |
| RMS rated power | 14 W |
| Performance | |
| Built-in speaker(s) | Yes |
| RMS rated power | 14 W |
| Built-in camera | No |
| NVIDIA G-SYNC type | G-SYNC Compatible |
| AMD FreeSync type | FreeSync Premium |
| AMD FreeSync | Yes |
| Game mode | Yes |
| NVIDIA G-SYNC | Yes |
| Operating system installed | webOS |
| VESA Adaptive Sync support | Yes |
| Low Blue Light technology | Yes |
| Flicker-free technology | Yes |
| Brand specific technologies | Black Stabiliser |
| FPS counter | Yes |
| Picture processing technology | LG AI Picture |
| Display | |
| Display brightness (typical) | 275 cd/m² |
| Screen shape | Curved |
| Display number of colours | 1.07 billion colours |
| Native aspect ratio | 21:9 |
| Maximum refresh rate | 240 Hz |
| HD type | Wide Quad HD |
| Display technology | OLED |
| Viewing angle, horizontal | 178° |
| Viewing angle, vertical | 178° |
| Pixel pitch | 0.266 x 0.266 mm |
| Display resolution | 3440 x 1440 pixels |
| Response time | 0.03 ms |
| Display diagonal | 99.1 cm (39") |
| Contrast ratio (typical) | 1500000:1 |
| Response time (fast) | 0.03 ms |
| Touchscreen | No |
| High Dynamic Range (HDR) supported | Yes |
| Panel type | OLED |
| DCI-P3 coverage | 98.5% |
| High Dynamic Range (HDR) technology | DisplayHDR 400 True Black, Dynamic Tone Mapping |
| Screen curvature rating | 800R |
| Response time measurement type | GTG (Gray to Gray) |
| Anti-glare screen | Yes |
| Multimedia | |
| Number of speakers | 2 |
| Built-in speaker(s) | Yes |
| RMS rated power | 14 W |
| Built-in camera | No |
| Design | |
| Market positioning | Gaming |
| Product colour | White |
| Illuminated stand | Yes |
| Camera | |
| Built-in camera | No |
| Ports & interfaces | |
| Built-in USB hub | Yes |
| USB Type-A downstream ports quantity | 2 |
| USB Type-C downstream ports quantity | 1 |
| Headphone out | Yes |
| HDMI ports quantity | 2 |
| DisplayPorts quantity | 1 |
| HDMI | Yes |
| HDMI version | 2.1 |
| USB Power Delivery (USB PD) | Yes |
| USB Power Delivery up to | 65 W |
| DisplayPort out version | 1.4 |
| Bluetooth | Yes |
| Ethernet LAN | Yes |
| Technical details | |
| Height (without stand) | 404.4 mm |
| Depth (without stand) | 198 mm |
| Width (without stand) | 887.8 mm |
| HDMI | Yes |
| Product colour | White |
| Warranty period | 2 year(s) |
| Game mode | Yes |
| Weight (with stand) | 11.4 kg |
| Touchscreen | No |
| Network | |
| Bluetooth | Yes |
| Ethernet LAN | Yes |
| Ergonomics | |
| VESA mounting | Yes |
| Panel mounting interface | 100 x 100 mm |
| Swivelling | Yes |
| Height adjustment | Yes |
| Tilt adjustment | Yes |
| Power | |
| AC input voltage | 220 - 240 V |
| Power consumption (off) | 0.5 W |
| Energy efficiency scale | A to G |
| Energy efficiency class (SDR) | G |
| Energy efficiency class (HDR) | G |
| Energy consumption (SDR) per 1000 hours | 40 kWh |
| Energy consumption (HDR) per 1000 hours | 46 kWh |
| Weight & dimensions | |
| Height (without stand) | 404.4 mm |
| Depth (without stand) | 198 mm |
| Width (without stand) | 887.8 mm |
| Width (with stand) | 887.8 mm |
| Depth (with stand) | 322.8 mm |
| Height (with stand) | 605.7 mm |
| Weight (with stand) | 11.4 kg |
| Weight (without stand) | 7.3 kg |
| Package width | 985 mm |
| Package depth | 550 mm |
| Package height | 338 mm |
| Package weight | 17.5 kg |
| Packaging data | |
| Package width | 985 mm |
| Package depth | 550 mm |
| Package height | 338 mm |
| Package weight | 17.5 kg |
| Package type | Box |
| Stand included | Yes |
| Remote control included | Yes |
| Remote control batteries included | Yes |
| Power adapter included | Yes |
| Packaging content | |
| Stand included | Yes |
| Remote control included | Yes |
| Remote control batteries included | Yes |
| Power adapter included | Yes |
| Thin Client | |
| Operating system installed | webOS |
| Other features | |
| DCI-P3 coverage | 98.5% |
| Warranty period | 2 year(s) |
| Brand specific technologies | Black Stabiliser |
| FPS counter | Yes |
| Picture processing technology | LG AI Picture |
| Game mode | Yes |
| Height (without stand) | 404.4 mm |
| Depth (without stand) | 198 mm |
| Width (without stand) | 887.8 mm |
| Bluetooth | Yes |
| Remote control included | Yes |
| HDMI | Yes |
| USB Power Delivery up to | 65 W |
| Energy efficiency scale | A to G |
| Ethernet LAN | Yes |
| Touchscreen | No |
| USB Power Delivery (USB PD) | Yes |
| Package type | Box |
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