ASUS’ new ZenBook S is thin, light and rugged
ASUS has announced the ZenBook S (UX391), a 13.3-inch ultraportable that is designed to be tougher than your average laptop. Built to military specifications , the company claims that the S has proved its mettle in a series of endurance tests in tough conditions. But, unlike most rugged devices, the ZenBook S is light and thin enough to make you think it's a delicate piece of gear. Measuring 12.9mm thick and weighing a little over two pounds, the ZenBook S' strength comes from its all-metal frame. Inside, you'll find one of two eighth-generation Intel CPUs, either the i5-8250U or an i7-8550U CPU paired with either 8GB or 16GB RAM. Being an ultraportable, you're stuck with Intel's integrated UHD 620 graphics, but you can pick between a 256GB, 512GB or 1TB SSD. And with a 50Wh lithium-polymer battery, ASUS claims that the machine will runs for 13.5...