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Apple has announced the iPhone Duo, its first-ever foldable iPhone, and the device could have a major influence on the next phase of the foldable market. Several brands, including Oppo, Honor and Vivo, are also expected to explore wider foldable designs as this passport-style form factor gains momentum.
The iPhone Duo features a 5.4-inch outer display and a 7.6-inch inner screen, with both designed around a wider aspect ratio. It is powered by Apple’s A20 Pro chip and features a titanium frame, while Apple has also focused heavily on reducing the visibility of the inner display crease. Starting at $1,999, the iPhone Duo will sit firmly in the ultra-premium segment when it goes on sale on October 23. Its combination of a wide foldable design, a near-crease-free inner display and Apple’s software ecosystem could make it one of the most influential foldables yet.

There are still not many wide foldables on the market, although more brands are expected to join the bandwagon next year. Here are five alternatives to the iPhone Duo, including three wide foldables and two more conventional book-style models.
4Oppo Find N6
The Oppo Find N6 deserves a place on this list because it demonstrates just how much conventional book-style foldables have evolved. Its biggest highlight is the inner display, which Oppo designed to make the crease extremely difficult to see during normal use, alongside a slim body, a large battery and a Hasselblad camera system.
There have also been reports that Apple studied Oppo’s approach to foldable displays and hinges while developing the iPhone Duo. That makes the Find N6 particularly relevant here, especially given Apple’s focus on delivering a near-crease-free display with its first foldable.
Oppo launched the Find N6 globally in March, but its availability is limited to select markets rather than every region. For buyers who can access it, the Find N6 offers a mature foldable experience with strong multitasking features, flagship hardware and one of the least noticeable creases on a foldable phone.



