Review on Dell UltraSharp U2720Q 4K Backlit Monitor with Anti-Glare Screen, Pivot & Tilt Adjustment, USB Hub, HD, HDMI, LED (DELU2720Q) by Mark Turner

When I had a 4K laptop, I had to upgrade at least one of my two external monitors to 4K. This monitor gets the job done perfectly. Note that on Windows, if you grab a window to move it to a monitor with a different pixel density, the window can be severely distorted until you move it completely to the new side of the monitor. So this works well considering my frequent window settings.