BLU Studio XL Android Smartphone - GSM Unlocked - Black Unlocked Dual Sim Smartphone, with Android 5.0 Lollipop 6.0" qHD with IPS and OGS technology (540x960): 8 MP Main Camera + 2MP Front Camera MediaTek Quad Core 1.3GHz Processor with MALI 400 GPU, 8GB Internal Memory 1GB RAM Micro SD up to 64GB. ,4G HSPA+ (850/1700/1900/2100). GSM Quad Band: US Compatibility Nationwide on all GSM Networks including AT&T, T-Mobile, Cricket, MetroPCS, Straight Talk, Pure Talk USA and others Unlocked, and compatible World-Wide including Brazil, Mexico, Colombia, Venezuela, and other countries