The iPhone Duo isn’t just a folding phone

# iPhone Duo: Apple's Late Entry Into Folding Phones Apple finally released its first folding phone, the iPhone Duo, arriving years after Samsung and others already perfected the technology. The device works like a passport with a small screen on the outside and a larger one inside, though Samsung released a very similar design just weeks before Apple's announcement. Despite being a late player in the folding-phone market, Apple's version impressed reviewers with thoughtful design choices, and the company's new CEO used the launch to hint at how iPhones will fit into the emerging AI era.