Samsung Galaxy S4 Zoom SM-C105A is a Camera-Smartphone that specially designed for AT&T with 16 Megapixel Camera. This is a kind of bundled version of S4 Zoom SM-C101 (Read: Samsung Galaxy S4 Zoom SM-C101 Specs & Manual). If you look at the body design of SM-C105A, you might see that the device is a kind of Camera. But for real, this Galaxy S4 Zoom can works just like a normal Smartphone with all capabilities that usually a smartphone had.
Galaxy S4 Zoom for ATT works under quad-band GSM (850/900/1800/1900 Mhz) and tri-band UMTS (3G: 850/1900/2100 Mhz). One good news for you about this data network connectivity of SM-C105A is that along with AT&T, the device also supports 4G LTE Band 2/4/5/17. The device is only available in White Casing Color.