When Ultrabooks were first introduced by Intel, one of the first models to show us that they could stand up to the gauntlet laid down by the Apple MacBook Air was the Asus Zenbook UX21. There have been plenty of other great Ultrabooks since, including the Acer Aspire S5.

It hasn't taken long for Asus to supercede its older models, though, with the Zenbook UX32A appearing at the lower end of the spectrum and the Zenbook Prime UX31A as the show-off premium model.



Link: Techradar