Asus has pushed boundaries with the UX481, and there are areas where this machine succeeds. The primary screen offers good quality for sRGB work, and the lower panel is useful for secondary apps. The Asus has smart looks, solid performance and superb battery life. In key areas, though, the daring design means uncomfortable compromise. The cramped keyboard and trackpad can’t compare to Dell and Apple’s offerings, and the Asus is thicker and heavier than rivals. If you’re going to use the secondary screen, then you may be able to accept these issues. If it’s not going to be integral to your work, though, conventional laptops remain better.The ZenBook Duo is a solid attempt at delivering a dual-screen ultraportable. Using both screens is intuitive, and it can be genuinely practical for multitasking. But ASUS had to make compromises to fit those screens, especially when it comes to the keyboard and trackpad. It’s also heavier and thicker than any other ultraportable.