Blu LIFE 8 Unlocked (Yellow) Ultra slim design, super-phone performance with 1.7 GhZ Octa-Core processor, and amazing 5 inch HD Display. One Remarkable smartphone. 5.0 inch HD (720 x 1280) display, IPS, with Corning Gorilla Glass 2 protection: 8MP Camera with LED Flash and HD recording (1080p), 2.0MP Front Camera Unlocked Dual SIM Phone; 8GB Internal with 1 GB RAM Micro SD Slot up to 64GB 1.7GHz Octa-Core Processor with MALI 450 GPU, Android 4.2 Jelly Bean (Upgradeable to v4.4 Kit Kat) 4G HSPA+ up to 21 Mbps 850/1900: Nationwide AT&T: Cricket Wireless, Tracfone, Straight Talk, Net10, H20 Wireless, 420 Wireless, Black Wireless, Consumer Cellular, Pure TalkUSA, Red Pocket, Telcel America. T-Mobile: MetroPCS, Lyca, Speedtalk, Go Smart, Simple Mobile, Net10, Straight Talk, Solavei, Ultra Mobile, Telcel Amrica, Walmart Family Mobile supported in most areas; check with your service provider. 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.