That hasn't stopped Apple from inventing and selling ... is compatible with virtually all iPhones from the iPhone 4s on. The MoKo Universal Active Stylus Pen has a carrying clip that makes it ...

choosing the right Apple Pencil is not a trivial matter as all four makes of the Apple stylus are still in circulation. However, there’s a good case for the Apple Pencil Pro at this price.

Owners of those phone can use an S Pen to jot down notes ... devices do and don't merit a stylus. While it's not probable, though, Apple Pencil support for the iPhone is certainly sensible.