I understand the appeal of foldable phones—they let manufacturers keep expanding screen sizes while still producing devices that can reasonably fit in a pocket. In practice, though, every foldable Android phone I've seen in public has had a ridiculously visible seam between the two halves of the screen, often with what looks like delamination from the underlying surface, giving the display an ugly, bubbly appearance.
Back when Android phones began shipping with bigger and bigger screens and the iPhone was stuck at a miserly four inches, I was jealous. But I've never looked at anyone using a chunky, fragile-looking foldable phone in public and pined for Apple's take on the idea.
Nevertheless, that take has arrived, in the form of the iPhone Duo. This $1,999-and-up foldable is the biggest change to the iPhone in years, with both hardware and software updates that dramatically change how you interact with the device.
