The moment you click "SIM-free" on the iPhone 7 section, you'll get taken through a series of pages where you can choose its finish and storage size. Take note that you'll have to wait twice as long (six to eight weeks) to get the Jet Black version, which isn't really surprising, since it sold out way back in mid-September. Also, you'll have pay for the phone's full price, though Apple does offer up to 18 months of special financing. If this is the first time you're getting a SIM-free iPhone, don't forget to read the FAQ on the website to make sure you know exactly what you're getting.