The Verge
The incomplete history of Duo devices
Wednesday, September 9, 2026
Apple announced a folding-screen iPhone called the iPhone Duo. Samsung and Google had previously released foldable devices before Apple's announcement. The name "Duo" has been used for other products prior to this Apple device.
Original reporting: https://www.theverge.com/tech/992755/apple-iphone-duo-history-of-devices