The list of no-nos for the thinnest ultrabooks is lengthy, according to an "engineering estimate" published by Intel recently.
The specs for the thinnest of the thin laptops (15mm, 0.6 inch) shake out this way: no to the VGA port, "slim" 2.5-inch drives (7mm) are out, 18650/16650 batteries won't cut it, soDIMM memory, negative. And no "standard thermal solutions." (See charts below.)
But that's pretty thin -- even thinner than the Dell XPS 13 ultrabook, which is 0.71 inch at its thickest point. (See CNET's review of the Dell XPS 13 here -- and read how it stacks up against the Apple MacBook Air.)
Intel is more forgiving for 18mm (0.7-inch) and 21mm (0.82-inch) ultrabooks. (The latter 21mm category, for all intents and purposes, is not really an ultrabook but just a thin laptop.) … Read more