This Apple iPhone 15 has been professionally refurbished to working order by an approved vendor. Fully Unlocked and compatible with all carriers. Internally, the iPhone 15 is powered by a 64-bit 3.46 GHz "A16 Bionic" processor with six cores -- two performance cores, four high-efficiency cores, and a 16-core Neural Engine. It has 6GB of RAM and 128GB of flash storage.