1. SIM Type: Micro-SIM (3FF)
   
2. Operating System: Android 4.4
   
3. Network technology: 4G LTE
   Note: Limited 4G LTE availability in select markets. 4G speeds delivered by HSPA+ (with enhanced backhaul) and LTE, where applicable. Not available everywhere. Deployment ongoing. Compatible device and data plan required. Learn more at http://www.att.com/network.
   
4. Operating frequencies
   
5. Physical Characteristics & Battery Info
   
6. Storage