4. Sony Vaio Duo 13
Sony puts a tablet riff on its latest Ultrabook with the Vaio Duo 13, which roughly mirrors the Vaio Pro 13 covered in slide 2. The 1,920-x-1,080 touchscreen display converts to a tablet with a clever sliding mechanism. The included stylus works in either mode, as do finger touches. Notice the forward-shifted keyboard, which requires a condensed version of a touchpad. The Duo is about a half-pound heavier than "the world's lightest touch Ultrabook," but it's rated to deliver three hours longer on battery. Processor options are all Haswell and Intel HD Graphics 5000 and include Core i5 and i7. List pricing starts at $1,399 with Windows 8.