1. SIM Type: Micro-SIM (3FF)
   
2. Operating System:
   Original software version: Android 4.2 (Jelly Bean)
   
   Updated version: 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 att.com/network.
   
4. Operating frequencies:
   Note: Refer to International Services for equipment, roaming partner, pricing, and available services information.
   
5. Physical Characteristics & Battery Info:
   
6. Storage: