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LG LG 39GX950B – Full Specifications Monitor
RATED
Excellent
9.6/10

38.5″ LG 39GX950B – Full Specifications

The LG 39GX950B is a 38.5-inch tandem OLED gaming monitor at 5120×2160 that pairs 48–165 Hz refresh with a 0.03 ms response time.

38.5″ · 2.37:1 · MODEL YEAR 2026
LG●Monitor
LG Monitor
Add as preferred source
Display
38.5 in, OLED, 5120 × 2160
38.5
Refresh Rate
48–165 Hz
48
Brightness
300 nits
Contrast Ratio
1850000:1
1850000

Pros & Cons

Pros
  • OLED pixels switch off individually, so black levels are effectively perfect (1,850,000:1 stated contrast)
  • 0.03 ms minimum response time keeps OLED motion crisp
  • 5120 × 2160 resolution gives a huge 5K2K desktop at 142 ppi
  • 1500 nits peak brightness gives HDR highlights real punch
  • USB-C with DP Alt Mode and 90W power delivery handles video and laptop charging over one cable
  • 99.5% DCI-P3 coverage delivers very rich, wide-gamut color
  • 165 Hz maximum refresh is well above ordinary 60 Hz screens
  • DisplayHDR 500 True Black certification gives a defined HDR performance floor
Cons
  • Burn-in remains a long-term risk with static desktop elements, even with OLED Care features
  • Driving 5120×2160 at 165 Hz needs a very powerful GPU and DisplayPort 2.1 or HDMI 2.1 bandwidth
  • 300 nits typical brightness trails LCD monitors in bright full-screen scenes
  • At 38.5 inches it needs a deep desk and a firm arm or stand (10.7 kg with stand)
  • The 1500 nits peak is a short-duration figure, and sustained full-screen brightness is much lower
  • Static office layouts with taskbars and toolbars are the weak spot for an all-day work screen
  • No portrait pivot for vertical code or document work
  • No built-in webcam

Score & Ratings

9.6/10 Great
Design
9
Display
10
Color Performance
10
Performance
9
Connectivity
10
Model Information 8
Specification Value
Brand LG
Series UltraGear
Model 39GX950B
Model Alias UltraGear evo 39GX950B39" UltraGear evo GX9
Full Product Name LG UltraGear 39GX950B
Model Year 2026
Monitor Type Gaming Monitor
Available Colors Black
Display & Panel 17
Specification Value
Screen Size 38.5 in
Exact Diagonal 38.48 in
Screen Shape Curved
Radius of Curvature 1500R
Screen Format UltraWide
Aspect Ratio 2.37:1
Active Display Width 915 mm
Active Display Height 383 mm
Display Area 93.91%
Panel Type OLED
Panel Technology Primary RGB Tandem OLED
Panel Manufacturer LG Display
OLED Technology 4-stack Primary RGB Tandem
OLED Generation 4th Generation OLED
Self-Emissive Display Yes
3D Support No
Screen Coating Anti-glare / Matte

38.5" Display Size (97.8 cm) 21:9

97.8cm 38.5" 91.5 cm / 36" 38.3 cm 15.1"
Resolution & Pixel Details 3
Specification Value
Native Resolution 5120 × 2160
Pixel Density 142 ppi
Pixel Pitch 0.178 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 300 nits
Peak Brightness 1500 nits
HDR Support Yes
HDR Formats
HDR10
HDR Certification
DisplayHDR 500 True Black
DCI-P3 Coverage 99.5%
Factory Calibration Yes
DESK DISTANCE FIT 65cm
~65 cm desk distance
Ultra-Wide
70°
CompactIdeal FitWideUltra-Wide

Spans well beyond central vision — ideal for multitasking, edges will need head turns.

Refresh Rate, Response & Gaming 11
Specification Value
Refresh Rate Range 48–165 Hz
Minimum Response Time 0.03 ms
Variable Refresh Rate Yes
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 14
Specification Value
HDMI Ports
2× HDMI 2.1
HDMI Version HDMI 2.1
HDMI FRL Yes
DisplayPort Input 1× DisplayPort 2.1 (UHBR20)
DisplayPort Version DisplayPort 2.1
DisplayPort Bandwidth UHBR20
USB-C Video Input Yes
DisplayPort Alt Mode Yes
USB-C Input 1× USB-C 3.2
USB-C Power Delivery 90W
USB-A Ports
2× USB-A 3.2
Audio Output 3.5 mm (4-pole; sound+mic)
Headphone Output Yes
Microphone Input Yes (4-pole headset)

Ports & Connections

HDMI2USB-A2USB-CDisplayPortHeadphone
Audio, Camera, Network & Smart Features 4
Specification Value
Built-In Speakers Yes
Speaker Configuration 2 × 7 W
Audio Technologies
AI SoundVirtual 7.1.2 CH sound experience
Built-In Camera No
Ergonomics & Stand 6
Specification Value
VESA Mount Yes
Removable Stand Yes
Height Adjustment Yes
Tilt Adjustment Yes
Swivel Adjustment Yes
Pivot Adjustment No
Dimensions, Weight & Design 8
Specification Value
Dimensions With Stand 921.4 × 495.4 × 322.8 mm
Dimensions Without Stand 921.4 × 405 × 118.7 mm
Weight With Stand 10.7 kg
Weight Without Stand 6.8 kg
Stand Depth 322.8 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
Electric Current 13.5 A
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 11
Specification Value
Flicker-Free UL-verified
Low Blue Light Eyesafe 3.0
Reader Mode Yes
OLED Protection OLED Care
OLED Care Yes
Desktop Control Software Dual Controller
Monitor Management Software LG Switch
Auto Input Switching Yes
AI Visual 5K AI UpscalingAI Scene Optimization
Smart Energy Saving Yes
Additional Monitor Features
Color Weakness ModeDynamic Tone MappingGame OptimizerHDR EffectPerfect BlackPerfect ColorPicture ModeTrue Color Pro
Certifications, Standards & Licenses 1
Specification Value
VESA DisplayHDR
DisplayHDR 500 True Black
Included Accessories 4
Specification Value
HDMI Cable Included
DisplayPort Cable Included
USB-C Cable Included
USB Type-C Cable Included
Packaging Information 5
Specification Value
Package Dimensions 1035 × 549 × 296 mm
Package Width 1035 mm
Package Height 549 mm
Package Depth 296 mm
Package Weight 16.2 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—
Monthly—
Annually—

Uses about 52% less power than the average we track in this category.

Reviews

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DISPLAYINPUT · INDEPENDENT · SPEC-BASED · NO SPONSORED PLACEMENT SHEET № 39GX950B