AT&T Phone, Unlocked to work with any GSM SIM Card Carrier. Will Not work with CDMA Carriers like Verizon, Sprint, Boost, etc. Key Features: – Transformative Design. – Slide-Out Removable 2,800 mAh Battery. – Modular Metal Body. – Dual Rear Cameras with Wide Angle Lens. – 5.3-inch IPS Quantum QHD Display. – Internal Memory 32 GB (up to 22.4 GB usable) microSD Memory Slot Supports up to 2 TB.* – Compatible with both GSM carriers only (AT&T, T-Mobile, Straight Talk, Simple Mobile, MetroPCS, Cricket GSM, and Other GSM carriers through the world.) *MicroSD cards sold separately.