Both these laptops strike the perfect balance between power and portability for well under £1,000. But is there finally a better option than the reigning MacBook Air?
Asus have certainly given their best shot at creating a Windows laptop capable of dethroning Apple's slimlined classic, but Cupertino's tech-giant has proved time and time again why it deserves to be at the top.
Read on to find out who holds the title of the best ultra-portable laptop in the world.
Winner: Asus Zenbook UX305
Not only is it thinner and lighter than the MacBook Air, the Asus Zenbook UX305 sports a sharper screen and access to a greater library of games thanks to its use of Windows. Oh, and it's £200 easier on your wallet, too. While the Air is a great machine with excellent battery life, Asus' alternative is just a better all-round prospect.