GSM: GSM Data Transmission Type: GPRS|EDGE|HSDPA|HSUPA|HSPA+|LTE Operating System: Android 5.1 Lollipop Voice Activated: Yes Processor Speed: 1.2 gigahertz Rear-Facing Camera: 5 megapixels Media Card Slot: microSDHC SIM Card Slots: Single SIM Keyboard Type: Touch Screen No-Contract: Yes Carrier: AT&T GoPhone Maximum Usage Time: 10 hours Screen Size: 4.5 inches Screen Resolution: 854 x 480 Email Capable: Yes Voice Band: GSM 1800|GSM 1900|GSM 850|GSM 900|WCDMA (UMTS) Stand-By Time: 15 days Touch Screen: Yes Color Category: Black Mobile Hotspot Capability: Yes Expandable Memory up to: 32 gigabytes Social Media and Messaging Services: Twitter, SMS, MMS Internal Memory: 8 gigabytes Battery Capacity: 2100 milliampere hours Battery Type: Other Built-In GPS: Yes Device Manufacturer: ZTE Bluetooth Enabled: Yes Internet Connectable: Yes Processor Brand: Qualcomm Snapdragon Sensors: Accelerometer|Ambient light sensor|Proximity sensor|Compass Wireless Compatibility: Bluetooth|Wireless B|Wireless G|Wireless N Phone Style: Smartphone Data Transmission Operating Band: LTE Band 4|LTE Band 17|LTE Band 5|LTE Band 2 Charging Interface(s): Micro USB Display Type: Other Front-Facing Camera: 0.3 megapixels Additional Hardware Included: USB cable, Power adapter Recording Resolution: 1280 x 720 Text/Instant Messaging: Yes Phone Memory (RAM): 1 gigabytes Integrated Camera: Yes - Front and Back Water Resistant: No Wireless Technology: 4G|4G LTE|LTE|GSM(AT&T) Carrier