Samsung in its home country has rolled out the Series 5 Ultra in what's considered a tenuous claim to the ultrabook title. While a 13-inch system at 0.6 inches thick and 3.1 pounds is largely inside of the official definitions, the 14-inch system at four pounds and 0.8 inches is outside of the class, even with an aluminum shell. In including the choice of an optical drive, they also fit more closely to the definition of a traditional notebook.