iPhone Duo review: The future is foldable

The iPhone Duo is the biggest change to the iPhone’s form factor in its nearly 20-year history. It combines a compact, notebook-style design with an iPad-like inner display. It might look a little awkward, but that’s for good reason. I’ve spent the last week using the iPhone Duo. Here’s everything you need to know about Apple’s first foldable iPhone. 9to5Mac’s iPhone Duo review is sponsored by Craft: Craft will be available and fully optimized for iPhone Duo from day one! But that’s not all – t