Samsung Odyssey Gaming Monitor
Samsung Odyssey G4 G40H 27-Inch FHD 300Hz Gaming Monitor
Experience competitive gaming with a Fast IPS panel, up to 300Hz refresh rate via DisplayPort, 1ms GTG response time and adaptive-sync technology.
27-Inch
Full HD Display
300Hz
Max Refresh Rate via DisplayPort
1ms GTG
Response Time
Fast IPS
Vivid Colours and Wide Viewing Angles
Samsung Odyssey G4 G40H Gaming Monitor Overview
The Samsung Odyssey G4 G40H LS27HG400EWXXL is a 27-inch Full HD gaming monitor built for players who value fast motion, responsive gameplay and clear visuals. Its Fast IPS panel combines a 1920 × 1080 resolution with a refresh rate of up to 300Hz through DisplayPort and a 1ms GTG response time.
With HDR10 support, AMD FreeSync Premium and NVIDIA G-Sync Compatibility, the Odyssey G4 is designed to deliver smooth gameplay and detailed visuals when paired with compatible hardware. Its ergonomic stand supports height adjustment, tilt, swivel and pivot, helping you position the display comfortably for gaming or everyday use.
27-Inch Full HD Fast IPS Display
The Full HD resolution provides clear visuals for gaming, streaming and everyday desktop tasks. Fast IPS technology offers wide viewing angles and consistent colour appearance, helping maintain image clarity from different seating positions.
- 27-inch display with a 16:9 aspect ratio
- Full HD resolution of 1920 × 1080 pixels
- Fast IPS panel technology
- Typical brightness of 300 cd/m²
- Static contrast ratio of 1,000:1
- 178° horizontal and vertical viewing angles
- Up to 16.7 million colours
- 99% sRGB colour coverage
- HDR10 support
300Hz Refresh Rate and 1ms GTG Response Time
The Odyssey G4 supports up to 300Hz through DisplayPort and up to 240Hz through HDMI. The high refresh rate allows compatible systems to display more frames per second, helping fast-moving gameplay appear smoother. Samsung specifies a 1ms GTG response time, measured under its stated test conditions with the required response-time setting.
- Up to 300Hz: High-refresh-rate gaming through DisplayPort.
- 1ms GTG: Fast grey-to-grey pixel response under specified settings.
- Black Equalizer: Adjusts dark areas to help reveal details in shadowed game scenes.
- Virtual Aim Point: Adds an on-screen aiming point for supported gaming setups.
- Super Arena Gaming UX: Gaming-oriented display features.
- Auto Source Switch+: Automatically switches to a newly activated input source.
AMD FreeSync Premium and NVIDIA G-Sync Compatibility
AMD FreeSync Premium and NVIDIA G-Sync Compatibility help synchronise the display refresh rate with a compatible graphics card. This can reduce screen tearing and stuttering during gameplay, delivering smoother motion when the relevant technology is supported and enabled.
HDR10 for Enhanced Visuals
HDR10 compatibility allows the monitor to display supported high dynamic range content. Actual HDR results depend on the content, system configuration and the monitor's display capabilities.
Ergonomic Stand with Height, Tilt, Swivel and Pivot
The Odyssey G4 includes an ergonomic Height Adjustable Stand (HAS) with pivot functionality. You can adjust the screen's height, tilt and swivel, or rotate it into portrait orientation for compatible workflows. VESA mounting support also provides flexibility for suitable monitor arms and wall mounts.
- Height adjustment: 10.5cm (±0.5cm)
- Tilt adjustment: approximately -3° to +25°
- Swivel adjustment: approximately -45° to +45°
- Pivot adjustment: approximately -92° to +92°
- VESA wall mount: 100 × 100mm
- Black finish
Eye Saver Mode and Flicker Free Technology
Eye Saver Mode and Flicker Free technology are included to support a more comfortable viewing experience during extended gaming or work sessions. The monitor also includes an energy-saving solution and Off Timer Plus.
DisplayPort and HDMI Connectivity
The monitor provides DisplayPort and HDMI connectivity for compatible gaming PCs, laptops and other video sources. A headphone output lets you connect compatible audio equipment directly to the monitor.
- 1 × DisplayPort 1.2
- 1 × HDMI 2.0
- 1 × headphone output
- HDCP 2.2 support through DisplayPort and HDMI
- No built-in speakers
- No smart TV features
Samsung Odyssey G4 G40H Specifications
| Display | |
|---|---|
| Brand | Samsung |
| Series | Odyssey G4 G40H |
| Model | LS27HG400EWXXL |
| Screen Size | 27-inch (68.5cm class) |
| Panel Type | IPS (Fast IPS) |
| Screen Shape | Flat |
| Active Display Area | 59.78 × 33.63cm |
| Resolution | 1920 × 1080 (Full HD) |
| Aspect Ratio | 16:9 |
| Refresh Rate | DisplayPort: up to 300Hz; HDMI: up to 240Hz |
| Response Time | 1ms GTG |
| Brightness (Typical) | 300 cd/m² |
| Brightness (Minimum) | 240 cd/m² |
| Static Contrast Ratio | 1,000:1 |
| Viewing Angle | 178° horizontal / 178° vertical |
| Colour Support | Up to 16.7 million colours |
| sRGB Coverage | 99% |
| HDR | HDR10 |
| Gaming and General Features | |
| AMD FreeSync | FreeSync Premium |
| NVIDIA G-Sync | G-Sync Compatible |
| Black Equalizer | Yes |
| Virtual Aim Point | Yes |
| Super Arena Gaming UX | Yes |
| Auto Source Switch+ | Yes |
| Eye Saver Mode | Yes |
| Flicker Free | Yes |
| Energy Saving Solution | Yes |
| Off Timer Plus | Yes |
| Windows Certification | Windows 11 |
| Connectivity and Audio | |
| DisplayPort | 1 × DisplayPort 1.2 |
| HDMI | 1 × HDMI 2.0 |
| HDCP via DisplayPort | 2.2 |
| HDCP via HDMI | 2.2 |
| Headphone Output | 1 |
| Built-in Speakers | No |
| Smart Features | No |
| Design and Mounting | |
| Front Colour | Black |
| Rear Colour | Black |
| Stand Colour | Black |
| Stand Type | Height Adjustable Stand (HAS), Pivot |
| Height Adjustment | 10.5cm (±0.5cm) |
| Tilt | -3° (±2°) to +25° (±2°) |
| Swivel | -45° (±3°) to +45° (±3°) |
| Pivot | -92° (±2°) to +92° (±2°) |
| VESA Wall Mount | 100 × 100mm |
| Power, Dimensions and Weight | |
| Power Supply | AC 100–240V |
| Power Adapter | External adapter |
| Maximum Power Consumption | 48W |
| Dimensions with Stand (W × H × D) | 61.40 × 51.78 × 25.02cm |
| Dimensions without Stand (W × H × D) | 61.40 × 36.18 × 4.52cm |
| Package Dimensions (W × H × D) | 65.50 × 11.40 × 48.80cm |
| Weight with Stand | 4.0kg |
| Weight without Stand | 2.7kg |
| Package Weight | 5.5kg |
| Country of Origin | Vietnam |
Who Should Choose the Samsung Odyssey G4 G40H?
- Competitive gamers: The 300Hz DisplayPort refresh rate and 1ms GTG response time suit fast-paced gaming.
- FPS players: Black Equalizer and Virtual Aim Point provide useful gaming-focused controls.
- PC gaming enthusiasts: FreeSync Premium and G-Sync Compatibility support smoother gameplay with compatible graphics hardware.
- Flexible desk setups: The ergonomic stand offers height, tilt, swivel and pivot adjustments.
- Everyday users: Full HD resolution and wide IPS viewing angles are suitable for general desktop tasks and entertainment.
Things to Know Before Buying
- The maximum refresh rate is 300Hz through DisplayPort and 240Hz through HDMI.
- To achieve the maximum refresh rate, the connected graphics hardware, cable and settings must support it.
- The 1ms response-time figure is GTG and is measured under Samsung's stated test conditions; results may vary with settings and content.
- The monitor supports HDR10 but does not have built-in speakers.
- The Full HD resolution is designed for high-refresh-rate gaming rather than the higher pixel density of QHD or 4K displays.
- Smart TV features are not included.
Frequently Asked Questions
1. What is the maximum refresh rate of the Samsung LS27HG400EWXXL?
It supports up to 300Hz through DisplayPort and up to 240Hz through HDMI, depending on the connected device and settings.
2. What resolution does this monitor support?
The monitor supports Full HD resolution of 1920 × 1080 pixels with a 16:9 aspect ratio.
3. Does the Odyssey G4 G40H support AMD FreeSync and NVIDIA G-Sync?
Yes. It supports AMD FreeSync Premium and is NVIDIA G-Sync Compatible with compatible graphics hardware.
4. Does this monitor have built-in speakers?
No. The monitor does not include built-in speakers, but it provides a headphone output.
5. Can the monitor be wall-mounted?
Yes. It supports VESA mounting with a 100 × 100mm mounting pattern.
6. Is the stand adjustable?
Yes. The ergonomic stand supports height adjustment, tilt, swivel and pivot for flexible screen positioning.
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