Lenovo's ThinkPad X1 Carbon Ultrabook is the thinnest and lightest ThinkPad laptop yet. In fact, with a weight of just under 3 pounds, the X1 Carbon claims the title of "lightest 14-inch Ultrabook." Thanks to its carbon-fiber construction, this Ultrabook is both light and tough enough to meet military durability standards. The X1 Carbon has a few other things going for it that most other Ultrabooks don't. The 1600-by-900-pixel resolution on the matte display is the highest offered among the business Ultrabooks in this roundup, so text and graphics look sharper and you can see more on the screen without scrolling. Lenovo's RapidCharge technology gets you 5 hours of battery life from a 35-minute charge. And both the backlit keyboard (with iconic red pointing stick) and glass trackpad with integrated buttons are the best in their class. The X1 Carbon is a premium Ultrabook with a premium starting price of $1299.
Graphics Prowess, Budget Price: Lenovo ThinkPad T430u
Professionals who long for a ThinkPad but don't want to shell out for the X1 Carbon will find a worthy alternative in the ThinkPad T430u. The 14-inch T430u stretches the normal definition of an Ultrabook with its 4.1=pound weight and 0.83-inch thickness, but this highly capable machine is one of the most affordable business Ultrabooks around, starting at $779. The T430u comes with a third-generation Intel Core processor, up to 8GB of RAM, storage options that range up to 1 terabyte, and a 7-hour battery life. The optional Nvidia GeForce graphics--a rare feature among Ultrabooks--would be a boon for multimedia mavens. Like other ThinkPads, the T430u includes many security features and diagnostic tools, including a fingerprint reader and a USB blocker. The ThinkPad T430u is slated to launch in September.
Featherweight yet Full Featured: Toshiba Z930