The Thinkpad T431s features "a sleek, innovative trackpad, enhanced keyboard and refined aesthetics" and was inspired by the results of an "extensive global research project.
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Lenovo has expanded its range of ultrabooks with the T413s, which at a weight of 3.6 pounds (1.36 kg) and a thickness of 0.82 inches (20.6 mm), is the company's lightest and slimmest T-series Thinkpad. The T431s will be available with a range of 3rd generation Intel Core processors with Turbo Boost, Intel HD Graphics, up to 12 GB of DDR3 RAM, and a variety of mechanical and solid state drives.

The laptop features a 14-inch anti-glare display with a resolution of 1600 x 900, two USB 3.0 ports, Intel vPro for easy data management, support for a large range of Lenovo's ThinkPad docking stations, and "enhanced security that commercial customers require." Also included is the redesigned Thinkpad precision keyboard and a new trackpad featuring a "larger, smooth, responsive, multi-touch glass surface that optimizes Windows 8 gestures, click functionality, and integrates TrackPoint behavior to deliver a customized, improved experience for all users."

"We obsess over the pursuit of perfection – as evidenced by more than 20 years of Lenovo ThinkPad design and engineering accolades. However, perfection cannot be achieved without a key ingredient: customer insight," said Dilip Bhatia, vice president and general manager, ThinkPad Business Unit. "The ThinkPad T431s is the first device featuring Lenovo's new design, which represents a comprehensive examination of user experience and input."