iPhone Duo Accessories:
The Complete List
The Duo is a brand-new form factor, so the accessory market is being built right now. Here's what exists, what's confirmed, and what to watch for.
Apple's own accessories
iPhone Duo Folio
One-piece folio with an elastic hinge cover that extends and retracts as you open. Built-in kickstand, MagSafe both sides, enables desk StandBy poses. The early favorite for most buyers.
$129
iPhone Duo Case
Two-piece polycarbonate shell covering the back and front edges. Matte finish, two colors. Leaves the hinge exposed — protection is basic.
$79
Apple Pencil (USB-C)
Supported on both Duo displays — a first for iPhone. Sold separately.
$79
Third-party cases — what "good" means on a foldable
A normal phone case protects a back and four corners. A Duo case has to protect two halves plus a hinge without making the phone a brick.
- Hinge cover — spring-loaded or elastic, like Apple's Folio design. The hinge is the most expensive single point of failure.
- Raised edges on both displays — the outer screen is Ceramic Shield 2, but the inner display is a softer polymer laminate.
- MagSafe built in — the Duo supports MagSafe on both sides of the Folio; third-party cases should keep that.
- Reasonable thickness — closed, the Duo is already 11.3 mm. A bulky rugged case makes it a brick.
Confirmed third-party makers so far include Spigen (Air Fit Pro MagFit, ~$35, spring-loaded hinge), ESR (case + Corning glass protector), and Benks. See our ranked list: Best iPhone Duo cases.
Screen protection — read this first
Charging & power
The Duo charges at 20W wired and supports MagSafe. Any quality 20W+ USB-C PD charger works — no need to buy Apple's. Picks in our charging guide.
Still scarce
Because the form factor is new, expect these to arrive late or never for the Duo: wallet-style cases that cover both screens, car mounts rated for 254 g + hinge, and docks shaped for a half-open foldable. We'll update this page as the ecosystem fills in.