In Short

Ultrabook is a brand trademarked by Intel denoting a high-end, slimmed-down laptop computer that features less bulk than standard laptop computers. While not sacrificing battery life, an Ultrabook uses a low-power Intel processor and solid state drive, while omitting other features like larger ports or optical drives. Some notable Ultrabooks include the Dell XPS, Acer Aspire, HP Folio and HP Spectre.