Get the ZTE Axon Z999 Black Unlocked 64GB AT&T Android Cellular Mobile Phone. This phone has a 5.2-inch screen size with a resolution of 1080 x 1920 pixels. It comes with a 4GB RAM and 64GB of storage capacity that can be expanded up to 256GB via a microSD card. The phone is factory unlocked and supports a SIM-free usage. The ZTE Axon Z999 runs on Android operating system and offers multiple features like Bluetooth, GPS, Wi-Fi, and USB Type-C. It has a 20MP primary camera and an 8MP front-facing camera for capturing amazing photos and videos. With its elegant black color, this phone is perfect for personal or professional use.