Certainly, but I think iPhones are too big to be used on a wrist and existing armbands are usually for workouts and for your arm, rather than forearm or wrist.
More importantly, the UI is not done for that use. For example, you might want to lock down the orientation to have the bottom always be towards your body. Apps would also need to be very different, because you'd use it as some kind of dashboard.
More importantly, the UI is not done for that use. For example, you might want to lock down the orientation to have the bottom always be towards your body. Apps would also need to be very different, because you'd use it as some kind of dashboard.