Samsung Odyssey G4
Samsung LS27BG400EWXXL 27-Inch 240Hz Gaming Monitor
Experience responsive Full HD gaming with a 240Hz IPS display, 1ms GTG response time, HDR10 support and an ergonomic stand for a more comfortable setup.
27-Inch
Full HD IPS Display
240Hz
Refresh Rate
1ms
GTG Response Time
99% sRGB
Colour Coverage
Product Overview
The Samsung Odyssey G4 LS27BG400EWXXL is a 27-inch Full HD gaming monitor designed for smooth, responsive gameplay. Its IPS panel combines a 1920 × 1080 resolution with a 240Hz refresh rate and 1ms GTG response time, helping deliver clear motion during fast-paced games. HDR10 support and 99% sRGB colour coverage enhance compatible content, while the wide viewing angles help maintain consistent colours from different positions.
AMD FreeSync Premium and NVIDIA G-Sync Compatible support help synchronise the monitor with compatible graphics hardware to reduce screen tearing and stuttering. Its black design and ergonomic stand provide height, tilt, swivel and pivot adjustments, making it easier to position the display for your desk and gaming preferences.
27-Inch Full HD IPS Display
The flat IPS panel delivers Full HD resolution of 1920 × 1080 and a 16:9 aspect ratio. Its 178-degree viewing angles support clear viewing from different positions, while 99% sRGB coverage provides broad colour reproduction for games, videos and everyday applications.
- 27-inch class display: A larger screen for gaming and everyday desktop use.
- Full HD resolution: 1920 × 1080 pixels.
- IPS panel: Wide viewing angles and consistent colour presentation.
- HDR10: Supports compatible high-dynamic-range content.
- 99% sRGB: Broad sRGB colour coverage.
- 400 cd/m² typical brightness: Designed for clear viewing in suitable lighting conditions.
- 1,000:1 typical static contrast ratio: Helps distinguish light and dark areas.
- 16.7 million colours: Supports a broad range of on-screen colours.
240Hz Gaming Performance
The 240Hz refresh rate enables the monitor to display up to 240 frames per second when supported by the connected system and game. Its 1ms GTG response-time rating is designed for fast pixel transitions, helping make quick movements easier to follow during competitive gaming.
- 240Hz refresh rate: Smooth motion with compatible hardware.
- 1ms GTG response time: Fast pixel transitions under Samsung's specified test conditions.
- Low Input Lag Mode: A gaming setting designed to improve responsiveness.
- Black Equalizer: Adjusts visibility in darker game scenes.
- Virtual Aim Point: On-screen aiming assistance for supported gaming use.
- Refresh Rate Optimizer: A gaming display setting.
- Super Arena Gaming UX: Samsung gaming interface features.
- Ultrawide Game View: Offers a 21:9 viewing mode where supported; the physical display remains a 16:9 panel.
AMD FreeSync Premium and G-Sync Compatibility
Adaptive synchronisation helps coordinate the monitor's refresh rate with compatible graphics hardware. AMD FreeSync Premium and NVIDIA G-Sync Compatible support can reduce screen tearing and stuttering when supported by the connected device and correctly configured.
- AMD FreeSync Premium: Adaptive synchronisation support for compatible AMD graphics hardware.
- NVIDIA G-Sync Compatible: Supports adaptive synchronisation with compatible NVIDIA graphics hardware.
- Auto Source Switch+: Detects active connected devices and switches input sources automatically.
- Adaptive Picture: Picture adjustment feature for supported viewing conditions.
Eye Care and Viewing Features
The Odyssey G4 includes viewing and energy-saving features for everyday use. Eye Saver Mode helps reduce blue-light exposure, while Flicker Free technology is designed to reduce visible screen flicker.
- Eye Saver Mode: A viewing mode designed to help reduce eye strain.
- Flicker Free: Samsung flicker-reduction technology.
- Eco Saving Plus: Energy-saving picture settings.
- Eco Light Sensor: Ambient-light sensing for supported brightness adjustments.
- Off Timer Plus: Configurable automatic shut-off functionality.
- Windows 10 certification: Listed by Samsung for this model.
Connectivity and Compatibility
The monitor offers DisplayPort and dual HDMI inputs for compatible gaming PCs, consoles and other video sources. DisplayPort 1.2 and HDMI 2.0 support high-refresh Full HD gaming when the connected device, cable and settings are compatible.
- 1 × DisplayPort 1.2
- 2 × HDMI 2.0
- Headphone output: Connect compatible headphones or audio equipment.
- HDCP 2.2: Listed for HDMI connectivity.
- No USB-C: USB-C connectivity is not provided.
- No built-in speakers: Use headphones or an external audio solution.
Ergonomic Stand and Black Design
The Odyssey G4 features a black finish and an ergonomic stand that lets you adjust the display to suit your seating position. Height, tilt, swivel and pivot adjustments provide flexibility for gaming, everyday work and different desk arrangements.
- Front, rear and stand colour: Black.
- Stand type: Height Adjustable Stand (HAS) with pivot.
- Height adjustment: 12cm ± 0.5cm.
- Tilt: Approximately -3° to +22°.
- Swivel: Approximately -15° to +15°.
- Pivot: Approximately -92° to +92°.
- VESA mounting: 100 × 100mm.
Samsung LS27BG400EWXXL Specifications
| Brand | Samsung |
| Series | Odyssey G4 G40B |
| Model | LS27BG400EWXXL |
| Screen Size | 27-inch class (68.6cm) |
| Panel Type | IPS |
| Screen Shape | Flat |
| Aspect Ratio | 16:9 |
| Resolution | Full HD, 1920 × 1080 |
| Refresh Rate | Up to 240Hz |
| Response Time | 1ms GTG |
| Brightness | 400 cd/m² typical; 320 cd/m² minimum |
| Static Contrast Ratio | 1,000:1 typical |
| HDR | HDR10 |
| Viewing Angle | 178° horizontal / 178° vertical |
| Colour Support | Maximum 16.7 million colours |
| sRGB Coverage | 99% |
| Adaptive Sync | AMD FreeSync Premium; NVIDIA G-Sync Compatible |
| DisplayPort | 1 × DisplayPort 1.2 |
| HDMI | 2 × HDMI 2.0 |
| HDCP | HDCP 2.2 over HDMI |
| Headphone Output | Yes |
| Built-in Speakers | No |
| USB-C | No |
| Stand | Height adjustable with pivot, tilt and swivel |
| VESA Mount | 100 × 100mm |
| Dimensions with Stand (W × H × D) | 61.47 × 57.11 × 24.48cm |
| Dimensions without Stand (W × H × D) | 61.47 × 37.66 × 8.54cm |
| Package Dimensions (W × H × D) | 68.5 × 16.8 × 46.9cm |
| Weight with Stand | 5.3kg |
| Weight without Stand | 3.6kg |
| Package Weight | 7.0kg |
| Maximum Power Consumption | 48W |
| Power Supply | AC 100–240V, external adapter |
| Power Cable Length | 1.5m |
| In-Box HDMI Cable | Yes |
| Country of Origin | Vietnam |
Who Should Choose the Samsung Odyssey G4?
- Competitive gamers: The 240Hz refresh rate and fast response time suit fast-paced gaming.
- FPS players: Black Equalizer, Virtual Aim Point and low-input-lag settings provide useful gaming options.
- Gaming PC builders: DisplayPort and dual HDMI inputs support compatible PC and console setups.
- Everyday users: The 27-inch Full HD IPS screen works for gaming, streaming and general desktop tasks.
Things to Know Before Buying
- A compatible graphics card, cable and video output are required to use the full 240Hz refresh rate.
- The display is Full HD rather than QHD or 4K. Consider a higher-resolution model if pixel density is your main priority at 27 inches.
- The 1ms GTG rating is based on Samsung's specified test conditions and requires the Extreme response-time setting.
- There are no built-in speakers or USB-C ports. Plan for external audio if needed.
- Check desk clearance before purchasing to accommodate the stand's height, swivel and pivot adjustments.
Frequently Asked Questions
What is the resolution of the Samsung LS27BG400EWXXL?
It features Full HD resolution of 1920 × 1080 pixels with a 16:9 aspect ratio.
What is the maximum refresh rate?
The monitor supports a refresh rate of up to 240Hz.
Does it support AMD FreeSync and NVIDIA G-Sync?
Yes. It supports AMD FreeSync Premium and is listed as NVIDIA G-Sync Compatible.
Does the monitor have built-in speakers?
No. It includes a headphone output, but built-in speakers are not provided.
Can the stand be adjusted?
Yes. The stand supports height adjustment, tilt, swivel and pivot positioning.
Can it be wall-mounted?
Yes. It supports a 100 × 100mm VESA mount. Confirm that your mounting hardware is compatible with the monitor's weight and mounting pattern.
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