You don't run Android Studio on your phone. Being able to run Android Studio isn't the definition of a general purpose computer. Being able to develop software

You don't run Android Studio on your phone. Being able to run Android Studio isn't the definition of a general purpose computer. Being able to develop software for a device on that device also isn't the definition of a general purpose computer. A general purpose computer is one that can be easily made to run different programs. Again, it's a differentiation between devices like microwaves and ovens that are technically computers, but aren't used like computers by the general public.