BLU Life One X Unlocked 4G LTE GSM Smartphone (Black) Unlocked Dual SIM smartphone, Android 5.1 Lollipop 5.2" full HD display with Corning Gorilla glass 3. connectivity - Bluetooth 4.0, Wi-Fi b/g/n, Micro USB 2.0 16GB Internal memory 2GB RAM, 1.3 GHz Octa-Core Mediatek 6753 with MALI T720 GPU 13MP Main Camera with Phase Detection Autofocus and 5MP Front Camera with LED flash 4G LTE, (2/4/7/12/17), 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