Philips has announced its new UltraClear 40-inch 4K UHD display (model: BDM4065UC), which offers 3840 x 2160 resolution at 60Hz for $799.
Connectivity options include mini Display Port, Display Port, HDMI, MHL-HDMI and VGA. It also features four USB 3.0 ports to serve as a hub, as well as a PC-audio input and headphones out.
That seems like a whole lot of monitor for $799. Amazon has more detailed specs and several positive user reviews thus far. Third-parties are currently selling it above retail but you can still back-order it direct from Amazon for $799. Check out the product page here at Amazon.com.