The Samsung Galaxy S III is a high- end Android smartphone designed by Samsung and the successor to the Samsung Galaxy S II . Like its predecessor, the S III is touchscreen -based, slate -sized smartphone, with a significant addition of software features, expanded hardware, and a redesigned physique. In particular, it has an intelligent personal assistant ( S Voice ), eye-tracking capability, wireless charging, and expanded storage. The international version of the 4.8-inch (120 mm) smartphone is powered by a 1.4 GHz quad-core processor with 1 GB of RAM while the US version is powered by a 1.5 GHz dual-core processor with 2 GB of RAM.