Review on Upgrade Your Display with Philips 278E1A Frameless Monitor: 4K Resolution, Flicker-Free, Built-In Speakers, Blue Light Filter, HDMI Connectivity, LED Flat Screen by Chris Jenkins

It's a decent monitor with a reasonably good resolution, plenty of port support, and nice looks. Haven't tried playing it yet. Frame/rim not as thin as expected but acceptable. The angle isn't adjustable, so have a dictionary or textbook handy as a cornerstone. FYI, note that while the MacBook Air 2015 can output 4k resolution, it has a very significant lag, and I personally find that the refresh rate drops below 10 even when browsing Reddit or viewing PDF, what the heck is not a monitor problem.