B&H Photo Video offers the Dell UltraSharp 23.8" 4K Ultra HD IPS LED-Backlit LCD Monitor, model no. P2415Q, for $389.99 with free shipping. (Newegg and Amazon offer it for the same price.) That's the lowest total price we could find by $24 and the second-best outright price we've seen. (For further comparison, we saw it last month for $425 bundled with a $125 Dell gift card.) It features a 3840x2160 native resolution (four times that of 1080p), LED backlight, anti-glare, four USB 3.0 downstream ports, one USB upstream port, HDMI, DisplayPort, and mini DisplayPort.

Also available is the Dell 27" 4K Ultra HD IPS LED-Backlit LCD Monitor, model no. P2715Q, for $499.99 with free shipping. (Amazon offers it for the same price.) That's $40 under our January mention (which also included a $175 Dell gift card) and the lowest total price we could find by $7. It features a 3840x2160 native resolution (four times that of 1080p), LED edge-light backlight, four USB 3.0 downstream ports, one upstream USB port, HDMI, DisplayPort, and mini DisplayPort.