When you are connected to a Wi-Fi® network or when there are Wi-Fi® networks available in your vicinity, it is possible to view the status of these networks.
You can also enable your device to notify you whenever an open Wi-Fi® network is detected.
If you are not connected to a Wi-Fi® network, your device uses a mobile data connection to access the Internet (if you have set up and enabled a mobile data connection on your device).
By adding a Wi-Fi® sleep policy, you can specify when to switch from Wi-Fi® to mobile data.