Today seems like the perfect time for ranking, organizing and comparing what we think are the laptops of the last couple of months and what will probably be some of the most popular computers of the next couple of years called ultrabooks. There are best ultrabook reviews which tells us that there are quite a few ultrabooks that may attract our attention. Those are namely Acer Aspire S3, Asus Zenbook UX31, Lenovo IdeaPad U300S, Dells XPS 13, HP Folio 3 or Samsung Series 5 Ultra and Toshiba Portege Z835. Talking about design and build quality all of these computers are thin, slim, sleek and solid built. Most ultrabooks offer metal casings, with aluminum being the chosen material for most of them. Dell's XPS is an exception, with a very sleek magnesium alloy and carbon fiber body, while Acer's S3 is the only one in the class to use plastic for most of the case. Aside from the Acer, all the available ultrabooks are robust and elegant, having pretty much the same dimensions and weight. There are once again exceptions, with the XPS having a smaller footprint than most of the other ultrabooks, while the HP Folio being a bit on the heavy side, weighing 3.3 pounds.