iPhone Duo is Apple's first foldable smartphone, pairing a 7.6-inch inner folding display and a 5.4-inch outer screen with the A20 Pro chip, Touch ID, and dual-battery architecture.
What the product does and how it is positioned
iPhone Duo introduces a foldable form factor to Apple's smartphone lineup, featuring a 7.6-inch Super Retina XDR internal folding screen alongside a 5.4-inch external display. Both panels share matching aspect ratios, reach up to 3000 nits of peak brightness, and support ProMotion technology up to 120Hz. The chassis utilizes a Grade 5 titanium frame and hinge mechanism protected by Ceramic Shield glass and rated for IP68 water and dust resistance.
The internal architecture is powered by the A20 Pro processor with a Dual 16-core Neural Engine and vapor chamber heat dissipation, designed to drive iOS 27 and on-device Apple Intelligence tasks. Imaging is anchored by a 48MP Dual Fusion system with automated features like Smart Take and Duo Preview, while authentication relies on a Touch ID sensor integrated into the physical side button.
Source-supported ways to use the product
Users can organize and interact with two active applications simultaneously using Split View on the unfolded 7.6-inch workspace, such as dragging images between Photos and Mail.
The posable hinge allows the device to balance on flat surfaces independently for hands-free FaceTime meetings or angled viewing of video streams on either display.
Photographers can utilize Duo Preview on the outer screen so subjects can see themselves, while Kid Cue presents visual cues to capture the attention of children.
The mechanical design of iPhone Duo centers on a continuous hinge mechanism housed within a Grade 5 titanium enclosure. The inner 7.6-inch Super Retina XDR display is fabricated from ten ultrathin layers bonded by optically clear adhesives that slide during folding to reduce mechanical stress along the central axis. A nano-texture treatment covers the inner screen to minimize surface reflections, while an under-display FaceTime camera remains hidden beneath pixels until activated.
To sustain dual displays across prolonged operation, the device incorporates an internal dual-battery layout paired with an eSIM-only framework to maximize space for cells. Power distribution is managed alongside the A20 Pro silicon, which pairs a 6-core central processor and 7-core graphics processor with dedicated vapor chamber cooling to stabilize performance under intensive sustained loads.
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What was checked and when
Answers based on the source-checked product record
iPhone Duo features a 7.6-inch Super Retina XDR inner folding display with a nano-texture finish and a 5.4-inch outer display, both offering up to 3000 nits peak brightness and 120Hz ProMotion.
iPhone Duo uses a Touch ID fingerprint sensor integrated directly into the side button, providing biometric authentication whether the device is folded shut or unfolded.
No, iPhone Duo is an eSIM-only device globally and requires carrier provisioning through digital eSIM profiles rather than physical nano-SIM cards.
iPhone Duo includes a 48MP Fusion Main camera, a 48MP Fusion Ultra Wide camera, a 12MP Center Stage front camera, and an under-display FaceTime camera supporting 1080p video.
iPhone Duo supports MagSafe wireless charging, fast wired charging using compatible 60W or higher USB-C adapters, dedicated protective folios, and future support for Apple Pencil over USB-C.
