It is a tablet.
How to Post a Game

Thank you Batgirl. As usual an intelligent and helpful post from one of Chess.com's true bright spots. Appreciated!

Here’s an easy way for Mobil users: first to have to click the share button in the menu, second, you click copy, then, to post the game, just go to a forum, click the message box, click the chess board, then all you have to do is go to load pgn and then paste.
I don't know anything about cell phones. Sorry.