iPhone Duo hands-on: Apple's most exciting device in a decade

Apple’s first foldable, the iPhone Duo, arrives with a 5.4‑inch external screen and a 7.6‑inch internal flexible OLED, both protected by a titanium chassis that meets IP68 standards. At 11.3 mm thick and 254 g, it is noticeably bulkier than Samsung’s Galaxy Z Fold 8 (9.7 mm, 201 g) but still slimmer than the original Pixel Fold. The device retains a full suite of physical controls—including a lock key with integrated Touch ID, a dedicated camera button, and a top‑mounted volume rocker—while supporting tent, tabletop, and partial‑open modes. Its interior display features a matte nano‑texture that mutes reflections and disguises the faint central crease, and an under‑display FaceTime camera that disappears when inactive, a capability Samsung abandoned after the Z Fold 3. Apple equips the Duo with a dual‑camera rear array: a 48 MP Fusion sensor that can output 2× telephoto images at 12 MP, plus a 48 MP ultra‑wide lens, though it lacks the variable aperture of the iPhone 18 Pro line and the dedicated zoom lens found on the Z Fold 8 Ultra. Software-wise, Apple extends iPad‑style multitasking to the foldable, offering intuitive split‑screen gestures, drag‑and‑drop, and persistent app‑pair shortcuts, all wrapped in the polished iOS experience that differentiates it from Android rivals. The Duo launches at a price point $100 below the Z Fold Ultra yet $100 above the standard Z Fold 8, with pre‑orders beginning Oct 16 and shipments slated for Oct 23.

The Duo lands at a moment when foldables have moved from novelty to mainstream, yet Apple remains the last major OEM to enter the segment. By borrowing proven hardware cues—titanium durability, IP68 sealing, under‑display camera—from competitors while injecting its own software polish, Apple signals confidence that a refined iOS foldable can capture users who have resisted Android‑only designs. The decision to keep the external screen glossy while giving the interior a matte finish mirrors Apple’s emphasis on readability and reduced glare, a contrast to Samsung’s consistently glossy interiors. Moreover, retaining Touch ID on the side leverages a familiar biometric for quick unlocks, sidestepping the reliability concerns that have plagued side‑mounted fingerprint sensors on other foldables.

Looking ahead, the Duo’s heft and thickness could deter users who prioritize pocketability, especially against thinner rivals. The lack of a true optical zoom module may limit its appeal to photography enthusiasts, while the untested Apple Pencil integration leaves a gap in the productivity narrative. Watch for early adoption rates, software stability in prolonged multitasking, and whether Apple expands the accessory ecosystem (e.g., dedicated cases or a refined Pencil) to address the current limitations.