Seconded. Ultrabooks have been around for nearly a decade now and they are light as well as having excellent battery life. I've been using them since 2015 and,

Seconded. Ultrabooks have been around for nearly a decade now and they are light as well as having excellent battery life. I've been using them since 2015 and, combined with a docking station, they're the perfect mobile and home work environment, without any of the drawbacks of a phone (small display, no keyboard, hardly any multitasking, limited storage...). In my university, ultrabooks basically dominated the class room, so it's not only me.