I think there are a few reasons for this: The Apple Pencil is only available for the iPad devices: iPad navigation relies significantly on gestures that requi

I think there are a few reasons for this: The Apple Pencil is only available for the iPad devices: iPad navigation relies significantly on gestures that require multiple fingers, which is frustrating when holding the pencil. The iPads are much larger in size then phones and it's often awkward to use the pencil as a primary input. The pencil is kinda annoying to keep with the iPad, it magnetically sticks and is prone to falling off. My previous pencil fell and hit the nib, immediately breaking the tiny sensor that sits behind it. They onscreen keyboard is too big to use with the pencil, and although you can use (a multi-fingered) gesture to make it smaller, it still isn't great. For reference, I loved using the stylus as my primary input device for my Samsung Note. There were a bunch of quality of life features built around the stylus and you could stick it back in the phone to keep it safe.