The Lenovo ThinkPad X280 Intel Core i5 is one of the highest-rated ultra-portable laptops for students and mobile professionals seeking modern quad-core speed in a tiny profile. This 12.5-inch notebook is significantly thinner and lighter than previous generations, leveraging an 8th Gen Intel Core i5 quad-core chip that fully supports Windows 11 updates. If you want a pocket-sized powerhouse that boots instantly, runs heavy web applications fluidly, and weighs just around 1.1 kg, the X280 is an elite choice.