Sony Xperia M C2004 GSM Unlocked Android Smartphone, Black One-touch connectivity with NFC for easy pairing and sharing of content with other NFC-capable devices, including one-touch mirroring with NFC-capable televisions. 5MP fast capture camera with HDR for photos and 4 display for immersive entertainment Qualcomm Snapdragon S4 Plus dual-core 1.0 Ghz processor and Battery STAMINA Mode Unlocked cell phones are compatible with GSM carriers like AT&T and T-Mobile as well as with GSM SIM cards (e.g. H20, Straight Talk, and select prepaid carriers). Unlocked cell phones will not work with CDMA Carriers like Sprint, Verizon, Boost or Virgin.