Lenovo announced new convertible and traditional laptops at CES 2014, including the Yoga 2 and ThinkPad X Carbon laptops with adaptive keyboards, as well as the Miix tablet running Windows RT. The Yoga 2 is available in 11- and 13-inch screen sizes and improves on the original Yoga model with better battery life and other enhancements, while the ThinkPad Yoga is a business-focused convertible laptop.