Lenovo L28u-35 28 Inch 4K UHD (2160p) Monitor £199.99 @ Amazon

• Screen size: 28"
• Res: 3840 x 2160 Pixels (4K UHD 2160p)
• Tilt, Swivel, Pivot, Height Adjustable Stand
• Refresh rate 60hz
• Connectivity: 2x HDMI 2.0 + DP 1.4. (1x HDMI Cable included in the box)
• Panel: IPS
• Response time: 4 Ms
• Colour: Raven Black

Sold by Lenovo store on Amazon.
Free shipping for Amazon Prime members.

Obviously not for serious/pro gamers but for every other use should be good.

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Info added by @Sashecuador

A brilliant performer that looks and sounds great.
Working from home or just watching videos, the Lenovo L28u-35 Monitor is the perfect choice. This high-performance UHD monitor has been designed for both entertainment and work. Its 28-inch, IPS screen offers excellent viewing angles. The monitor’s superb 3840 x 2160 resolution, a color gamut of 90% DCI-P3 & 99% sRGB screen translates into consistently brilliant performance. Speaking of performance, the Lenovo L28u-35 Monitor also comes with integrated dual 2W speakers for an immersive audio experience. This monitor features two HDMI 2.0 ports, a DP 1.4 port, and an Audio Out jack. Working long hours? The Lenovo L28u-35 Monitor supports you with Natural Low Blue Light technology to reduce harmful blue light emission with zero color distortion. It is also certified with TÜV Rheinland Eye Comfort, TÜV Low Blue Light (Hardware Solution), and Eyesafe Display which safeguards your eyes and helps minimize fatigue and eye strain. To further enhance user comfort, this monitor has a fully adjustable LTPS (Lift, Tilt, Pivot, Swivel) stand that allows you to adjust its height and viewing angle perfectly, and also comes with easy display controls. The Lenovo L28u-35. A monitor that’s designed to look great and perform even better.
Superb screen performance
The Lenovo L28u-35 is a 28-inch UHD monitor that offers brilliant, sharp, and detailed imagery. In addition, this thin and stylish In-Plane Switching (IPS) panel monitor with 90 percent DCI-P3 & 99 percent sRGB color gamut, and 10-bit color depth provides brilliant, life-like images with superb clarity and accuracy from any viewing angle. Further, this is an HDR10 monitor which makes it excellent for displaying video content like movies and games.
High comfort and style quotient
This monitor comes with a super cool, stylish and stable LTPS stand, enabling you to adjust the monitor’s height and viewing angles to best suit your needs, especially allows you to rotate the screen and accommodate more content vertically, to view articles or work on Excel sheets without repeatedly scrolling. Also the Lenovo L28u-35 Monitor has Natural Low Blue Light technology that reduces harmful blue light emission making the monitor safe and comfortable for your eyes without any color distortion.
Excellent user experience
With two HDMI 2.0 ports and a DP 1.4 port, the Lenovo L28u-35 Monitor allows you to switch quickly between devices for various entertainment requirements. Its AMD FreeSync feature enables a smooth and consistent display of high-quality gaming images. The Lenovo L28u-35 Monitor comes with dual 2W speakers that provide a fulfilling and immersive audio experience. Moreover, we understand that convenience is of the essence while working from home. That is why the monitor comprises easy display controls that help you save time and boost efficiency.

Features & details
Indulge in exceptional visuals with the Lenovo L28u-35 monitor with its 28-inch IPS Panel 4K UHD (2160p) display.
The 4ms response time, 60Hz refresh rate, 99% sRGB color gamut eliminate and AMD Radeon FreeSync technology screen tearing and stuttering.
Game for long hours thanks to TUV Eye Comfort, which ensures a comfortable viewing experience.
Connection types: 2x HDMI 2.0 + DP 1.4. 1x HDMI Cable included in the box.
Comfort: Adjust your monitor to your preference with the Tilt, Swivel, Pivot, Height Adjust Stand.