Overview

  • Fast IPS
    Enjoy realistic game scenes on the Odyssey G4 with Fast IPS panel. The 178° wide viewing angle accurately delivers clear, crisp hues that remain consistent from multiple viewpoints, while quick response time reduces motion blur and ghosting — providing an engaging gaming experience.
  • 300Hz Refresh Rate & 1ms Response Time
    React fast and stay ahead of the competition on the Odyssey G4 with a 300Hz refresh rate and 1ms GtG response time. This display delivers splitsecond responsiveness and ensures that your moves are captured in real-time, giving you unbeatable gaming precision with minimized lag.²
  • HDR10
    Immerse yourself in lifelike visuals with improved contrast and color accuracy, thanks to HDR10. The high dynamic range on the Odyssey G4 provides brighter highlights and nuanced shadows for added depth — making scenes feel more vivid and realistic.¹
  • G-Sync Compatible and AMD FreeSync Premium
    Get smooth action without disruption. G-Sync compatibility syncs the GPU and panel to reduce choppiness, screen lag and image tearing, while AMD FreeSync Premium creates ultra-smooth scenes that flow smoothly to the next.³
  • Black Equalizer
    Black Equalizer allows you to adjust dark areas in games, to easily locate your opponents, even in the deepest shadows.⁴
  • Virtual Aim Point
    Gain precision in your shots with Virtual Aim Point. Crosshairs on the Odyssey G4’s screen increase the accuracy of your aim when the action peaks.
  • Ergonomic Stand
    Reach the height of winning in total comfort with Samsung’s Ergonomic Stand. Simply swivel, tilt and adjust your Odyssey G4 until all enemies are in perfect view.

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Specifications

Capacity & configuration

Display Type
LCD
Panel Type
IPS
Stand Type
Adjustable height stand

Dimensions & weight

Product Name
27" Odyssey G4 (G40H) Fast IPS FHD 300Hz 1ms AMD FreeSync Prem Gaming Monitor with HDR 10 (DisplayPort, HDMI)
Product Height Without Stand
12.47 inches
Product Width
24.17 inches
Product Depth Without Stand
1.78 inches
Product Weight
8.81 pounds
Maximum Adjustable Height
20.39 inches
Product Depth (With Stand)
9.85 inches

Features

Brand
Samsung
Color
Black
Refresh Rate
300Hz
Maximum Resolution
1920 x 1080
Native Resolution
1920 x 1080
Contrast Ratio
1000:1
Response Time
1 milliseconds
Synchronization Technology
FreeSync Premium (AMD Adaptive Sync)
Aspect Ratio
16:9
Display Contour
Flat
Brightness
240 candela per square meter
Screen Size
27 inches
High Dynamic Range (HDR)
Yes
High Dynamic Range Format
HDR 10
Horizontal Viewing Angle
178 degrees
Vertical Viewing Angle
178 degrees
On-Screen Display Languages
English
Color Gamut (Standard RGB)
99 percent
Number of DisplayPort Inputs (Total)
1
Number of HDMI Inputs (Total)
1
Display Connector(s)
1 x HDMI 2.0
USB Ports
None
Headphone Jack
Yes
Wall Mountable
Yes
VESA Wall Mount Standard
100mm x 100mm
Voice Assistant Built-in
No
Stand Ergonomics
Tilt
Built-In Webcam
No
Integrated Speaker(s)
No
Smart Capable
No
ENERGY STAR Certified
No
Operating System Compatibility
Windows
UPC
198957281228

Power & warranty

Model Number
LS27HG40DENXGO
Power Consumption
48 watts
Warranty - Parts
3 years
Warranty - Labor
3 years

Warranty & protection

Included manufacturer warranty

See manufacturer documentation.

Register your product with the manufacturer within 30 days of delivery.

Warranty service

Manufacturer warranty claims are handled by the manufacturer. We are happy to help you find the right contact: (888) 419-6820.

Customer reviews

Write a review
WdeROct 23, 2026 · Verified purchase ★★★★☆

It works fine - Has been working fine for several weeks with not problems.

MICHAELWOct 16, 2026 · Verified purchase ★★★★★

Samsung Monitor - Easy hookup. Incredible graphics and colors. Smoothest screen I’ve ever seen. Seamless!

NotayesmanOct 16, 2026 · Verified purchase ★★★★★

Looks great - This makes the most of my my graphics card and my switch doesn't take up too much room on the desk easy to assemble easy to use looks great

OZZYEOct 16, 2026 · Verified purchase ★★★★★

great monitor - i really like the monitor it was so easy to set up and it looks great

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Questions & answers

Ask a question

Email [email protected] or call (888) 419-6820 during business hours.

Free U.S. shippingOn every order. Leaves our store in 1–2 business days, arrives in 3–5 business days.
Free returns for 30 daysNo restocking fee. We email you a prepaid return label.
We can install it tooOptional in-home delivery, installation and haul-away on large appliances.
Talk to our team(888) 419-6820 · Mon–Sat