Answer:
Smartphones are mobile devices that you can carry around you in your pocket which makes them so useful. You gain the ability to send people messages, share media, play videogames, send calls, or just get help all in one place with a smartphone. Some limitations on them are.. there arent any. You buy a smartphone you get to do whatever you want on it although you would break some laws, you can still do them if you would want to risk getting thrown in prison.