As noted by Creative Strategies analyst Max Weinbach, the iPhone Duo is gaining Apple Pencil support with iOS 27.2, which is expected to be released to the public next week. You can use the USB-C version of the Apple Pencil to draw, annotate, and scroll within supported apps on the iPhone Duo's inner and outer displays. You can use the USB-C version of the Apple Pencil to draw, annotate, and scroll within supported apps on the iPhone Duo's inner and outer displays.