Motorola MOTO E Dual XT1022 Unlocked GSM Dual-SIM Dual-Core Android Smartphone - Black 2G: GSM 850 / 900 / 1800 / 1900, 3G: HSDPA 850 / 900 / 1900 / 2100 4.3" Capacitive Multi-Touchscreen w/ Protective Corning Gorilla Glass 3 Android v4.4.2 (KitKat), upgradable to v4.4.3 (KitKat), Dual-Core 1.2 GHz Cortex-A7 Processor, Chipset: Qualcomm Snapdragon 2, Adreno 302 Graphics 5 Megapixel Camera (2592 x 1944 pixels) Internal Memory: 4GB, 1GB RAM + microSD Slot Expandable up to 32GB 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.