iPhone Duo only works with the USB-C Apple Pencil

The iPhone Duo supports only the USB-C Apple Pencil, priced at $79, while the first- and second-gen Pencil and Pencil Pro are incompatible. Support arrives in iOS 27.2, and the stylus pairs over a USB-C cable and attaches magnetically to the hinge without charging.

• Only the $79 USB-C Apple Pencil works; Pencil 1, 2 and Pro do not
• Support is added in iOS 27.2, currently in beta
• The stylus attaches magnetically to the hinge but does not charge
• Display cover layer replacement costs $19 with AppleCare+ and $49 without