The Samsung Odyssey G4 G40H S27HG402EU is a 27-inch gaming monitor designed for fast and responsive gaming. The Fast IPS display with Full HD 1920 × 1080 resolution provides wide viewing angles and good color reproduction, while refresh rates of up to 300 Hz via DisplayPort and a 1 ms (GtG) response time ensure an extremely smooth display of fast-paced action.

The monitor supports AMD FreeSync Premium and is NVIDIA G-SYNC Compatible, helping to reduce screen tearing and stuttering while gaming. HDR10 enhances contrast and detail, and the ergonomic stand allows for height, tilt, swivel, and pivot adjustments.

Advantages

* 67.5 cm (27") flat gaming screen
* Full HD resolution 1920 × 1080
* Fast IPS technology
* Refresh rate up to 300 Hz via DisplayPort
* Refresh rate up to 240 Hz via HDMI
* 1ms response time (GtG)
* AMD FreeSync Premium
* NVIDIA G-SYNC Compatible
* HDR10 support
* Brightness 300 cd/m²
* 99% sRGB color space coverage
* Wide viewing angle 178°/178°
* Ergonomic adjustable stand
* Height adjustment
* Tilt adjustment
* Rotating stand
* Pivot to use the screen in portrait position
* DisplayPort and HDMI connectors
* Headphone output

Specifications

* Brand: Samsung
* Series: Odyssey G4 G40H
* Model: S27HG402EU
* Full code: LS27HG402EUXEN
* Type: gaming monitor
* Screen diagonal: 67.5 cm (27")
* Resolution: 1920×1080 FHD
* Aspect ratio: 16:9
* Screen type: Fast IPS
* Screen shape: flat
* DisplayPort refresh rate: up to 300 Hz
* Refresh rate via HDMI: up to 240 Hz
* Response time: 1ms (GtG)
* Typical brightness: 300 cd/m²
* Minimum brightness: 240 cd/m²
* Static contrast ratio: 1000:1
* Viewing angle: 178°/178°
* Number of colors: up to 16.7 million
* sRGB coverage: 99%
* HDR: HDR10
* AMD FreeSync Premium: yes
* NVIDIA G-SYNC Compatible: yes
* DisplayPort: yes
* HDMI: yes
* Headphone output: yes
* Height adjustment: yes
* Tilt: yes
* Rotation: yes
* Pivot: yes
* Color: black

The Samsung Odyssey G4 G40H S27HG402EU is aimed primarily at gamers who prioritize high refresh rates and short response times. The combination of a Fast IPS panel, 300 Hz, 1 ms response time, and FreeSync Premium and G-SYNC Compatible technologies provides a very good foundation for competitive gaming.

It is important to know

The Samsung Odyssey G4 G40H S27HG402EU monitor with a 27" diagonal and Full HD resolution is primarily suitable for users looking for a larger work surface and a very fast matrix for playing games. Before purchasing, we advise you to consider whether the combination of size and resolution is suitable for your way of working or playing, especially if you often read small text or use the monitor for several hours a day.

• At 27" in size, the Full HD resolution image will be less sharp when writing text or working with spreadsheets at shorter viewing distances.
• A very high refresh rate (300 Hz) and a fast response time (1 ms) are key advantages, especially for fans of fast and competitive games, while for regular work this feature does not bring any additional value.
• The Fast IPS panel provides good visibility from various angles, which is practical in larger offices, group work or multi-person gaming.
• The monitor supports key connectors (HDMI, DisplayPort), but before purchasing, check if your computer is capable of taking advantage of the high refresh rate.
• For long-term daily text reading or professional image processing, consider higher-resolution monitors.

Source of editorial recommendations: ENAA guides and team experience.

In practice

🎮 Gaming

🟢 Extremely suitable for fast and competitive gaming thanks to 300 Hz refresh rate and fast response.

💻 Home use

🟡 It meets basic needs (browsing, videos, basic tasks), but text sharpness is average.

💼 Business work

🟡 Suitable as a third screen for visibility, but less optimal for all-day work with documents due to lower pixel density.

🏡 Work from home

🟡 Provides enough space for application windows, but for long-term reading, we recommend a higher resolution.

💻 Dual monitor setup

🟢 With a 27-inch diagonal, it allows for combination with other monitors for multitasking, if perfect sharpness when reading small text is not a priority.

Answers to frequently asked questions

Is Full HD resolution on a 27-inch monitor enough for demanding office work?

It's acceptable for basic everyday office use, but if you frequently read large amounts of text, you may notice less sharpness of the letters compared to a higher resolution.

What do I need to take advantage of this monitor's 300 Hz refresh rate?

To take advantage of the 300 Hz refresh rate, you need a computer with a powerful graphics card and appropriate DisplayPort or HDMI support on your system.

Is the monitor suitable for professional graphic design or photography?

The basic IPS panel offers good viewing angles, but due to the Full HD resolution and basic color reproduction, this model is not optimal for professional use in graphics or photography.

Can I use the monitor with my laptop as my primary display?

Yes, the monitor supports connection to most laptops via HDMI or DisplayPort, but it is important to check if your laptop supports the desired refresh rate.

Description updated: August 2026

Read also

If you are still deciding, the following content may also be helpful.

Best products

Best monitors 2026

Products for various purposes

Monitors for office work

Monitors for working from home

Hybrid Work Monitors

Monitors for home use

Gaming monitors

Graphic design monitors

Why buy from ENAA?

• The leading choice for monitors in Slovenia.
• Over 100 shopping guides for the best smart choice.
• There is only one best price. We publish prices transparently, without artificially crossed out amounts - customers immediately see the best offer.