This Apple iPhone 5s has a dual-core processor and a 4-inch screen size. It comes in silver color and is in good cosmetic condition. The model number is A1533 (CDMA + GSM) and it has a single SIM card slot for Verizon network. It has Bluetooth, Wi-Fi, Glonass, and GPS connectivity and runs on the iOS operating system. The storage capacity is 16 GB with 1 GB of RAM.