This handset is really a smart 3G enabled handset with HSDPA 7.2Mbps. Though, it amounts to an impressive 50MB, still, if required, the memory can be further expanded, up to 16GB. Samsung S5600 has Quad Band (850/900/1800/1900) network service along with EDGE, GPRS, and 3G technology. https://glhwar3.com/forums/users/elif738557840/