Lenovo IdeaPad Yoga 13 13.3-Inch Convertible 2 in 1 Touchscreen Ultrabook (Gray) 2013 Model Intel Core i5-3337U ULV Processor (1.8 GHz) with up to 2.70 GHz after Intel Turboboost 4 GB DDR3 RAM 128 GB Solid-State Drive 13.3-Inch Screen, Integrated Intel HD Graphics Windows 8, 8-hour battery life