You're always allowed to bring your phone. They highly encourage it. You may download the Disney app to your phone and select fast passes versus waiting lines. Once you use a fast pass, select another one, it will be an awesome time saver. If ever lost on a ride, wait till it's over, tell a cast member, they will find and return it to you.
Yes,
Yes seen loads of people with these
Yes its fine as long as it is not a selfie stick
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