Lenovo ThinkPad 20CD0033US Yoga 12.5-Inch Convertible 2 in 1 Touchscreen Ultrabook Intel Core i7-4500U ULT 1.8 GHz (4 MB Cache) 8 GB DDR3 RAM 256 GB Solid-State Drive 12.5-Inch Screen Windows 8.1, Up to 8hrs battery life