Lenovo ThinkPad S1 Yoga 20C00014US 12.5" Touchscreen LCD 2 in 1 Ultrabook - Intel Core i5 (4th Gen) i5-4300U Dual-core (2 Core) 1.90 GHz - 4 GB DDR3L SDRAM - 500 GB HDD - Windows 8.1 64-bit - 1366 x 768 - In-plane Switching (IPS) Technology - Convertible

The ThinkPad Yoga delivers flexibility for business. Its 12.5" display rotates 360 degrees to offer four different usage modes: laptop, tablet, tent, and stand. Boasting legendary ThinkPad reliability and a range of business and security features, it's the ultimate multimode business Ultrabook.