Apple is reportedly testing iPhone Duo 2 prototypes with Face ID built into the foldable’s outer display. For a device meant to be used both open and closed, that approach could let owners unlock it with a glance before unfolding it—though the feature remains uncertain for the commercial model.
A possible shift from the side button
The current iPhone Duo uses a Touch ID fingerprint reader integrated into its side button for authentication. Moving Face ID to the exterior display would restore the facial-unlock experience used on other iPhones without requiring the Duo to be opened first. It is not clear whether Apple would retain Touch ID alongside Face ID on a future model.
The second-generation foldable is reportedly known internally as V78 and is expected in fall 2027. Apple has not announced the device, its U.S. availability, or its price.
Other hardware changes are still in consideration
Face ID is only one of several potential changes under discussion, and it is not yet known which ones would be ready for iPhone Duo 2.
- An Action button, potentially combined with the Camera Control button
- A telephoto camera
- A thinner, lighter chassis
An unverified image said to show the successor has also circulated with three rear cameras, but its authenticity has not been confirmed. For now, the reported outer-display Face ID work is most notable as a usability upgrade for a foldable that currently relies on a side-mounted fingerprint sensor; whether it reaches the 2027 hardware remains an open question.
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