Premium construction, excellent portability, fifth-generation Intel core i5 power-the new Dell XPS13 is 30% more efficient than previous models. It also features the world's first Infinity display, a virtually borderless 13-inch screen placed into the body of an 11-inch Laptop. With an industry best 15 hours of battery life, the XPS13 keeps you powered up for full days of work. Compared to the Apple MacBook Air 13, this XPS 13 is 23% smaller with the same size screen. Light weight of 2.6 lbs makes it a breeze to carry wherever you're headed. Dell XPS13 is one of the best if not currently the best Ultrabook Laptop.