Thinking of buying Xbox One - Need refresher on features.

[NobleTeam360]

You only need one Gold membership, not multiple like someone above said. 

Edit: Also just buy an external HDD, if you try to replace the internal HDD you'll void your warranty.  Also get the 1tb console, if you need more space then buy an external HDD like i said before. You can get a 5TB for 130 bucks on Amazon.