Top Accessories and Apple Pencil Tips for Apple’s Iphone Duo

WHO:

MacRumors - Videographer Dan Barbera tested using the Apple Pencil with the iPhone Duo.

9to5Mac - Apple says the iPhone Duo requires an Apple Pencil (USB-C); no other Apple Pencil models are compatible.

9to5Mac - Recommended accessories include Apple’s 40W Dynamic Power Adapter with 60W Max, Anker’s 100W power brick, ESR’s MagSafe Car Mount, Aqara G100 2K security camera, eufy 4K security camera, and AirPods Pro 3.

WHAT:

MacRumors - The iPhone Duo works with the Apple Pencil (USB-C), priced at $79 from Apple and available for $69 from Amazon. Apple Pencil 1, Apple Pencil 2, and Apple Pencil Pro do not work with it.

MacRumors - The USB-C Pencil supports writing and drawing on both the iPhone Duo’s inner and outer displays; palm rejection can be enabled in settings.

MacRumors - The USB-C Pencil lacks the pressure sensitivity, double-tap, and squeeze features of Apple Pencil Pro.

MacRumors - The Pencil tip can leave lines on the Duo’s display, but they wipe away with a polishing cloth. The article says permanent damage is unlikely. Apple offers a cover-layer replacement for $19 with AppleCare+ or $49 without it.

9to5Mac - The iPhone Duo supports fast charging to 50 percent in 20 minutes. It ships with a USB-C cable but no power adapter.

9to5Mac - ESR’s MagSafe Car Mount is listed for $19, reduced from $29. The article recommends it for securing the phone to an A/C vent and using it with CarPlay.

9to5Mac - StandBy mode can show “Home Camera” and “Home Modular” views while the iPhone Duo is standing, even when it is not charging.

9to5Mac - Aqara G100 2K camera is listed at $39; eufy’s 4K security camera is listed at $69.

9to5Mac - AirPods Pro 3 are listed at $199, reduced from $249; the writer cites noise cancellation as useful for focusing at work.

WHERE:

MacRumors - The Apple Pencil can be stored magnetically on the iPhone Duo’s hinge.

9to5Mac - The iPhone Duo’s StandBy views provide access to smart-home accessories and can show home security cameras.

WHEN:

MacRumors - Apple Pencil support is being added through iOS 27.2, which the article says is available in beta.

9to5Mac - Apple Pencil support is expected “next week” through the iOS 27.2 software update.

WHY:

MacRumors - The USB-C Apple Pencil may suit note-taking and quick sketches, though the article says its usefulness is limited by the iPhone Duo’s smaller screen compared with an iPad.

9to5Mac - The recommended 40W Apple adapter and Anker 100W charger are intended to provide the fastest charging speeds.

HOW:

MacRumors - The USB-C Apple Pencil pairs with the iPhone Duo using a USB-C cable, rather than magnetically pairing as Apple Pencil Pro does with iPads. It attaches to the Duo’s hinge for storage but does not charge there.

9to5Mac - The article says the Duo’s foldable design was inspired by the proportions of a standard A-series paper notebook.

(UPDATED October 24, 2026 16:05 UTC)

Apple is adding support for the USB-C Apple Pencil to the iPhone Duo through the iOS 27.2 update, expected next week. The $79 Pencil, available for $69 from Amazon, works on both displays for writing and drawing; older Apple Pencil models and the Pro are incompatible. It pairs with a USB-C cable, then attaches to the phone’s hinge for storage, but does not charge there. The Pencil lacks pressure sensitivity and other advanced controls, and its usefulness may be limited by the phone’s smaller screen. Tests found that the tip can leave marks, but they wipe away with a polishing cloth. The Duo also supports fast charging to 50 percent in 20 minutes, though no power adapter is included. Recommended accessories include fast chargers, a MagSafe car mount, security cameras and AirPods Pro 3. StandBy can display home-camera views even when the phone isn’t charging.