1. SIM Type: Nano-SIM(4FF)
   
2. Operating System: Amazon Fire OS v4.5
   
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 are displayed.
   Note: Note: Refer to International Services for equipment, roaming partner, pricing, and available services information.
   
5. Physical characteristics & battery info are displayed.
   
6. Storage is displayed.