iPhone Duo launch: $249 add-ons required for full functionality

Apple’s new foldable iPhone Duo is now available, but users must spend an additional $249 to unlock core functions like stylus input and maximum charging speeds. The device does not include the necessary hardware in the box, meaning the base price does not reflect the total cost for a fully equipped setup.

The total comes from two primary accessories. Apple’s USB-C Pencil is priced at $69, down from its previous $79 price tag. For fast charging, the 9to5Mac outlet recommends Apple’s 40W Dynamic Power Adapter, currently listed at $34, or a third-party Anker 100W charger for $29. These two items account for the majority of the extra spend required to reach the phone’s peak performance specifications.

Apple Pencil support marks a first for the iPhone lineup. The feature allows users to write notes and sketch on both the outer and inner displays. Apple stated that the design draws on the proportions of a standard A-series paper notebook. This functionality will become available next week with the iOS 27.2 software update. Only the USB-C version of the Apple Pencil is compatible with the new device.

Charging speed is another area where the box contents fall short. The iPhone Duo can reach 50 percent charge in approximately 20 minutes, but this speed requires a specific power adapter. Like recent iPhone models, the retail package contains only a USB-C cable. While many households already possess a 20W adapter, the faster charging capability relies on the higher-wattage options discussed above.

The device also introduces an upgraded StandBy mode that functions even when the phone is not charging. When propped upright, users can access various views, including Home Camera and Home Modular, which provide access to smart home accessories. This feature is particularly useful for monitoring security cameras. Recommended compatible devices include the Aqara G100 2K camera at $39 and a eufy 4K camera at $69.

Other recommended accessories include various cases and mounting solutions. Third-party options such as the SPIDERCASE Magnetic Case and Spigen Ultra Hybrid Pro are available for $29 and $39, respectively. Apple sells its own Folio with Kickstand for $129 and a standard case for $79. For drivers, an ESR MagSafe Car Mount is suggested at a discounted price of $19, allowing for dual-screen navigation with CarPlay.

The iPhone Duo launch highlights a shift in how Apple packages its hardware. By excluding the stylus and high-speed charger, the company separates these components from the initial purchase. Buyers who want the full experience described in the marketing materials must budget for these add-ons immediately upon opening the device.