Dell unveils a slimmer XPS 13 and a detachable 2-in-1

While all eyes are on the flashy new XPS 13 Plus, Dell hasn't forgotten about its mainstay premium ultraportable or its convertible cousin. This year, the XPS 13 been redesigned to be slimmer and more power efficient. The XPS 13 2-in-1, meanwhile, has been transformed from a foldable laptop into a detachable Surface competitor. Both are being positioned to make room for their new family member--if you want power, you'll want the XPS 13 Plus with its beefy 28-watt CPU. But if portability matters ...