Samsung Galaxy Book S brings the advantages of the smartphone to a new computing device that's fast and ultralight, turns on in an instant, connects with LTE and goes a long way on a single charge. Galaxy Book S unites lightweight and durable in a design that's all about keeping you mobile. Just 11.8mm of thickness and a weight under 1kg lets you take your device wherever you go, while the solid clamshell form provides stability to let you type for hours without fatigue.