Lenovo, the biggest name in business-class laptops, has gone on a diet and the result is the Thinkpad X1, its lightest and thinnest Thinkpad model ever and an ideal machine for the enterprise mobile workforce. Anyone who’s ever had a corporate job has probably used a Lenovo Thinkpad. These mainstays in the corporate world are renowned for their reliability, durability, and performance. But light and airy they are not. Well the road warrior’s load is now lighter with the Thinkpad X1. Lenovo claims it is the lightest and thinnest Thinkpad model ever, at 3.7 pounds and 0.67″ thick (0.84″ at its thickest point). Slideshow: The Best 2011 Windows 7 Laptops for Work and Play The X1 has the familiar black rubberized screen lid of all Thinkpads. Its specs are impressive for such a thin device: 4GB RAM (with option to add up to 8GB), an Intel Core i5 or i7 “Sandy Bridge” processor, a 320GB hard drive, a backlit and spill-resistant keyboard, and a 13.3-inch display made of resilient gorilla glass. It comes loaded with Windows 7 Professional. One shortcoming of the X1 is battery life. It’s an unimpressive four hours. A secondary “slice” battery was included with the X1 sent to me and can be snapped to the bottom of the machine to nearly double battery life. But make note: This will add weight to the machine and in real life the slice battery is not included. It must be purchased separately for $150 – $200 (I incorrectly state in the video below that the second battery is included). Like many ultra-thin laptops these days, the X1 does not include an internal optical drive, so you won’t be watching DVDs or listening to a CD on this model. But with all the Web-based media these days, who uses discs anymore anyway? The X1’s price starts at $1199. For a closer look at the Lenovo Thinkpad X1, click below on our latest episode of “Shiny Happy Hardware.” Related content Opinion Last Words Before Closing Eye on Microsoft By Shane O'Neill Jun 05, 2013 3 mins Small and Medium Business Tablets Windows Opinion With Rumored Reorg, Microsoft Tries to Simplify The mounting pressure on Steve Ballmer to streamline Microsoft is finally leading to some action. By Shane O'Neill Jun 03, 2013 3 mins IT Strategy Cloud Computing Computers and Peripherals Opinion What You Need to Know About the New Lync and Skype Integration Audio calls and instant messaging are officially integrated between Lync and Skype, but no video connectivity yet. Here are some key points for users and IT admins about the new Lync-Skype connection. By Shane O'Neill May 29, 2013 3 mins Small and Medium Business Internet VoIP Opinion Microsoft Should Leave the Competition Out of Ads Microsoft is in no position to disparage Google and Apple in TV ads, yet it keeps doing it. A new ad for Microsoft Surface turns inward and gets it right. By Shane O'Neill May 23, 2013 2 mins Small and Medium Business Tablets Internet Podcasts Videos Resources Events SUBSCRIBE TO OUR NEWSLETTER From our editors straight to your inbox Get started by entering your email address below. Please enter a valid email address Subscribe