1. SIM Type: Micro-SIM (3FF)
   
2. Operating System: Android 5.0 (Lollipop)
   
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/en/index.html
   
4. Operating Frequencies: 
   Note: Refer to International Services http://www.att.com/shop/wireless/international.html for equipment, roaming partner, pricing, and available services information.
   
5. Physical Characteristics & Battery Info:
   
6. Storage: