The Iiyama GB2771UHSU-B1 27" IPS, UltraHD/4K, 144 Hz, HDR400, FreeSync monitor is an advanced monitor specifically designed for demanding users who want exceptional image quality, fast refresh rates, and a superior experience when working or gaming. With its impressive 4K UHD resolution and fast response time, this monitor delivers both color accuracy and exceptionally smooth image display that business users, gamers, and all tech-savvy consumers will appreciate.

Evaluation of key product features

This model with a modern IPS panel provides high color accuracy and wide viewing angles, which is especially important for graphic design, photo editing or teamwork. Thanks to the high resolution of 4K UHD, details are crystal clear, text is clearly legible, and images and video content are displayed extremely realistically.

A 144Hz refresh rate and an ultra-fast 0.8ms response time ensure smooth gameplay without blurring or lag, making this monitor a top choice for passionate gamers. FreeSync technology enables synchronization with compatible graphics cards and reduces screen tearing, further enhancing the gaming experience.

Built-in HDR400 support means that darker and brighter areas of the image are displayed more realistically, which is especially noticeable when watching movies and playing modern games. Connectors such as HDMI and USB-C offer flexibility in connecting various devices, which is useful for both business environments and home use.

The ergonomic design combined with high screen brightness allows for comfortable use in various lighting conditions. With comprehensive features and advanced technology, this monitor stands out as a reliable solution for those who expect the most from their workstation or gaming corner.

It is important to know

Before purchasing a 27-inch 4K monitor like the Iiyama GB2771UHSU-B1, it's crucial to understand the trade-off between exceptional display sharpness and the need to accommodate system scaling and physical desk space. It's also important to check connectivity options and whether your computer supports the desired resolutions and frequencies. The right decision often depends on how well the monitor fits with the rest of your equipment and the specific needs of your work or home environment.

• On a 27-inch 4K monitor, text is extremely sharp, but may require higher magnifications in the operating system, which affects the actual work area and clarity of applications.
• The equipment must support connecting a monitor at full resolution and a high refresh rate (144 Hz); check which connector (DisplayPort or HDMI) allows you to take advantage of the monitor's full capabilities.
• Using two monitors of different sizes or resolutions often leads to display or sharpness mismatches, which can interfere with multitasking - it is best to use two identical units.
• Ergonomic monitor height adjustment and a sufficiently deep desk are even more important at higher resolutions, as an appropriate viewing distance and eye alignment with the top edge of the screen are recommended for an optimal experience.
• Monitors with IPS panels, like this one, generally offer a stable image and wide viewing angles, which is beneficial for both creative and office use, especially when combined with multiple open windows.

Source of editorial recommendations: ENAA guides and team experience.

In practice

🟢 Multitasking with dual monitors

The monitor is particularly suitable for use in a dual setup, as the 27-inch diagonal and 4K resolution provide high sharpness and display consistency, which is ideal for users who need clarity of multiple windows and data.

🟢 Office and analytical work

The high resolution and IPS panel provide excellent text readability and enough space for spreadsheets, multiple documents or analytical work – ideal for business use and longer concentration.

🟡 Gaming with high demands

The monitor is a suitable starting point for gaming in 4K resolution at 144 Hz, but a suitably powerful graphics card will be necessary to take advantage of these capabilities.

🟢 Creative work (design, photography, video)

4K resolution, IPS matrix and HDR support are especially useful when processing photos and video content, where details and display quality are key.

🟡 Working with two different monitors

A set with a second monitor of different dimensions or resolution (e.g. 24-inch FHD) can lead to display inconsistency and uneven sharpness and scaling, so it is not an optimal choice for advanced users.

🔴 Use with older connectors (VGA, DVI)

For the highest resolution and refresh rate, modern connectors are essential; older standards do not allow you to utilize the monitor's full potential.

Answers to frequently asked questions

Will my laptop or computer support 4K at 144 Hz on this monitor?

To display 4K at 144 Hz, you typically need a DisplayPort 1.4 or appropriate HDMI connector and a powerful graphics card that supports such output.

Is the monitor also suitable for graphically demanding work (photography, video)?

A monitor with 4K resolution, IPS panel, and HDR support enables high-quality display of colors and details, which is an advantage for creative tasks.

How does a 27-inch 4K monitor perform in everyday use and reading text?

The image is extremely sharp, but a magnification setting in the operating system is recommended for a comfortable font and icon size.

Is the monitor suitable for combining two different monitors?

For an optimal experience, we recommend using two identical monitors, as combining with a monitor of different resolution or size may cause differences in display and sharpness.

Which connector should I use for the best display quality and full monitor functionality?

It is best to use DisplayPort or modern HDMI, as they allow image transmission at the highest resolution and refresh rate.

Description updated: October 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?

• There is only one best price - we publish prices transparently, without artificially crossed out amounts, so you always see the best offer at first glance.
• ENAA is the leading choice for monitors in Slovenia - a wide range, expert guides and neutral descriptions make it easy for you to make an informed purchase.