They don't have wifi support.
If you're concerned about file storage -> get a couple of SD cards, they are cheap.
If you want to access facebook/instagram remotely to upload your pictures -> buy a cheap phone that supports SD cards so you can swap your photos between camera and phone easily and upload photos via phone (wifi or 3g).
Wifi on cameras is a pain in the ass battery-wise, navigation-wise and connectivity-wise.
Not worth it tbh.