Lenovo Horizon 2

Impressive 27-inch touchscreen ; Doubles as tabletop tablet PC ; Performs well

Heats up over time ; Stunted software limits accessories ; Awkward buttons

Although the ability to lay flat might seem a bit gimmicky, the Lenovo Horizon 2 backs it up with powerful hardware and good performance, even though its software makes poor use of its capabilities.

Anti-glare screen cuts reflections. HDMI-in port.

Colors appear dull on display. Only 2 hours of battery life. No SD card slot. Speakers a little low for a larger room. Keyboard and mouse dongle takes up a USB 3.0 port.

The Lenovo Horizon 2 is a portable system that needs to have its power cable handy at all times. Sure, it has one of the largest screens on a portable all-in-one desktop, but it will still tie you down. The Dell XPS 18 (1820) remains our Editors...