2G: GSM 850 / 900 / 1800 / 1900, 3G: HSDPA 850 / 1700 / 1900 / 2100
4-inch IPS LCD Capacitive Multi-Touchscreen w/ Scratch-Resistant Glass
Microsoft Windows Phone 8 (upgradeable to WP8 Black), Dual-Core 1 GHz Processor, Chipset: Qualcomm MSM8227, Adreno 305 Graphics
5 Megapixel Camera (2592 x 1936 pixels) w/ Autofocus, 1/4'' Sensor Size, Geo-Tagging + Video
Internal Memory: 8GB, 512MB RAM + microSD Slot Expandable up to 64GB
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.