A foldable phone isn’t for the faint of heart. Here’s how I think of it: a book-style foldable is like a phone plus a tablet, and a flip-style foldable is a phone plus a smartwatch. The book foldables provide an outer screen for all your regular phone needs, and then a tablet-like inner screen when you want, well, more screen. When folded, the outer screen matches the dimensions of a regular phone, and the inner screen can get nice and bright outdoors. When folded, the outer screen matches the dimensions of a regular phone, and the inner screen can get nice and bright outdoors.