RATED
Excellent
9.8/10
38.5″ LG 39GX900A – Full Specifications
This is the 38.5-inch step in LG's 2025 OLED lineup, and the LG 39GX900A packs a lot into one cable.
LG●Monitor
Display
38.5 in, OLED, 3440 × 1440
38.5
Refresh Rate
48–240 Hz
48
Brightness
275 nits
Contrast Ratio
1500000:1
1500000
Overview
This is the 38.5-inch step in LG's 2025 OLED lineup, and the LG 39GX900A packs a lot into one cable. The curved 800R panel runs at 3440 × 1440 up to 240 Hz with 0.03 ms response and 98.5% DCI-P3. USB-C delivers 65W, and there are two USB-A 3.0 ports, two HDMI 2.1 ports and a DisplayPort 1.4. Game Optimizer, Dynamic Tone Mapping and True Color Pro are listed. At 11.43 kg, the stand adjusts for height and swivel.
- 38.5-inch curved (800R) OLED, 3440 × 1440 at 95 ppi
- 48–240 Hz, 0.03 ms response
- 98.5% DCI-P3, 10-bit, factory calibrated
- USB-C 65W, 2× HDMI 2.1, DisplayPort 1.4, 2× USB-A 3.0
- Height and swivel stand, 11.43 kg
Pros & Cons
Pros
- USB-C with 65W adds laptop docking to a gaming OLED
- Immersive curve at a manageable size
- Fast, high-contrast OLED image
- Game Optimizer for quick tuning
- Wide colour gamut with calibration
Cons
- No built-in speakers
- 11.43 kg weight needs a firm desk
- No pivot adjustment
- 275 nits limits brightness in bright rooms
Score & Ratings
9.8/10
Excellent
Model Information
8
| Specification | Value |
|---|---|
| Brand | LG |
| Series | UltraGear |
| Model | 39GX900A |
| Model Alias | UltraGear 39GX900A39GX900A-W |
| Full Product Name | LG UltraGear 39GX900A |
| Model Year | 2025 |
| Monitor Type | Gaming Monitor |
| Available Colors | Black |
Display & Panel
16
| Specification | Value |
|---|---|
| Screen Size | 38.5 in |
| Exact Diagonal | 38.48 in |
| Screen Shape | Curved |
| Radius of Curvature | 800R |
| Screen Format | UltraWide |
| Aspect Ratio | 2.389:1 |
| Active Display Width | 915 mm |
| Active Display Height | 383 mm |
| Display Area | 97.85% |
| 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 |
38.5" Display Size (97.8 cm) 21:9
Resolution & Pixel Details
3
| Specification | Value |
|---|---|
| Native Resolution | 3440 × 1440 |
| Pixel Density | 95 ppi |
| Pixel Pitch | 0.266 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
Spans well beyond central vision — ideal for multitasking, edges will need head turns.
Refresh Rate, Response & Gaming
12
| Specification | Value |
|---|---|
| Refresh Rate Range | 48–240 Hz |
| Minimum Response Time | 0.03 ms |
| Variable Refresh Rate | Yes |
| Adaptive-Sync | VESA AdaptiveSync Display |
| AMD FreeSync | Premium |
| 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
13
| Specification | Value |
|---|---|
| HDMI Ports |
|
| HDMI Version | HDMI 2.1 |
| DisplayPort Input | 1× 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 3.1 |
| USB-C Power Delivery | 65W |
| USB-A Ports |
|
| Audio Output | 3.5 mm (4-pole; sound+mic) |
| Headphone Output | Yes |
| Microphone Input | Yes (4-pole headset) |
Ports & Connections
Audio, Camera, Network & Smart Features
2
| Specification | Value |
|---|---|
| Built-In Speakers | No |
| Built-In Camera | No |
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 | 886.5 × 496 × 323 mm |
| Dimensions Without Stand | 886.5 × 404 × 198 mm |
| Weight With Stand | 11.43 kg |
| Weight Without Stand | 7.3 kg |
| Stand Depth | 323 mm |
| Bezel Design | 4-Side virtually borderless Design |
| RGB Lighting | Yes |
| Lighting System | RGB Hexagon LED Lighting |
Power & Operating Conditions 12
| Specification | Value |
|---|---|
| 110V Input Range | 100–120V |
| 220V Input Range | 220–240V |
| AC Frequency | 50–60 Hz |
| Average Power Consumption | 67 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
8
| Specification | Value |
|---|---|
| Flicker-Free | Yes |
| Low Blue Light | Yes |
| Reader Mode | Yes |
| Desktop Control Software | Dual Controller |
| Monitor Management Software | LG Switch |
| Auto Input Switching | Yes |
| Smart Energy Saving | Yes |
| Additional Monitor Features |
|
Certifications, Standards & Licenses 3
| Specification | Value |
|---|---|
| VESA DisplayHDR |
|
| VESA AdaptiveSync | VESA AdaptiveSync Display |
| ClearMR | ClearMR 13000 |
Included Accessories
4
| Specification | Value |
|---|---|
| HDMI Cable | Included |
| DisplayPort Cable | Included |
| USB-C Cable | Included |
| USB Type-C Cable | Included |
Packaging Information 2
| Specification | Value |
|---|---|
| Package Dimensions | 985.5 × 551 × 338 mm |
| Package Weight | 17.5 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.