Since 1982, PCMag has tested and rated thousands of products to help you make better buying decisions. Like the Duo 13, when the XPS 12 is in slate tablet mode, you won't see or feel the keyboard. It also has full tilt in either orientation, so it's better ergonomically than the Sony VAIO Duo 13 ( at Amazon) (Opens in a new window) ($1,400).

This is a more comfortable solution than the Lenovo IdeaPad Yoga 13 ($999), which flips over, leaving the keyboard uncomfortably exposed. On the Dell XPS 12, you can pivot the screen on its midpoint, so the screen can flip over and face out after you close the lid. The swiveling screen carries over from the previous model. The chassis is made from magnesium, carbon fiber composite, aluminum, and Gorilla Glass, so it feels quite sturdy. It measures about 0.79 by 12.5 by 8.5 (HWD) and weighs in at 3.24 pounds, which is square inside the ultrabook spec requirements. The Dell XPS 12 (29 DNCWI16B) looks virtually identical to the previous Dell XPS 12 ( at Amazon) (Opens in a new window) ($1,699.99), down to its carbon fiber finish on its top lid and bottom. Definitely give it a physical test drive before buying, as the flip and tilt mechanism may not come naturally to all users, but with over eight hours of battery life, we are starting to see the attractiveness of the system that is a part time clamshell laptop and a part time slate tablet.

While the design is still quirky and unique, the improvements make it that much more desirable. Now the system comes with Intel's fourth-generation Core i5 processor, which gives the user hours more computing time. The Dell XPS 12 (29 DNCWI16B) ($1,199) convertible ultrabook is an update to a previously reviewed iteration with the same name. How to Set Up Two-Factor Authentication.How to Record the Screen on Your Windows PC or Mac.How to Convert YouTube Videos to MP3 Files.How to Save Money on Your Cell Phone Bill.

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Dell xps 13 2012