Nokia Lumia 1020 RM-877 32GB Unlocked GSM Phone w/ 41MP Camera - White (International Version) GSM 850 / 900 / 1800 / 1900, 3G Network: HSDPA 850 / 900 / 1900 / 2100, 4G Network: LTE 700 / 850 / 1700 / 1900 / 2100 4.5" AMOLED Capacitive Multi-Touchscreen w/ Protective Corning Gorilla Glass 3 Microsoft Windows Phone 8, upgradeable to WP8 Black, Dual-Core 1.5 GHz Krait Processor, Chipset: Qualcomm MSM896 Snapdragon, Adreno 225 Graphics 41 MP (38 MP effective, 7152 x 5368 pixels), Carl Zeiss optics, optical image stabilization, auto/manual focus, Xenon & LED Flash+ Front-Facing 1.2 Megapixel Camera, 720p@30fps + Video 1080p@30fps, 4x lossless digital zoom, video light Internal Memory: 32GB, 2GB RAM 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.