It doesn't matter what type of smartphone you have or who your carrier is, you will want to have it with you at a Disney Park. With your smartphone you will be able to take pictures and add them almost immediately to social media. You will be able to keep track of everyone in your party through calls and texts. You will want the My Disney Experience App on your phone. The app does usually work well, and you will use it a lot. You can use the app to check wait times, to change your FastPass+ reservations, to read menus, and to find the nearest restroom. With the app you can download character and ride photos, see show times, and book a hotel room. New features are being added to the My Disney Experience App all the time. If your smartphone doesn't have great battery life you might want to consider bringing in a backup power source, because you don't want to be tied down to an outlet; if you can find one. If you forget the battery backup Disney has you covered. You can buy portable phone chargers at kiosks in several locations. Use the rod to charge your phone, then exchange it at another kiosk when you need to charge again. Charge all you want for one price. If you need to find the nearest kiosk, look for "Portable Phone Charging System Kiosks" under Guest Services on the My Disney Experience App.