Set up a Personal Hotspot.
Some carriers allow you to use iPhone to share an Internet connection. If you have this feature, it will appear in Settings, under Personal Hotspot or under Cellular > Set Up Personal Hotspot.\n
Devices can connect to your iPhone using Wi-Fi, Bluetooth, or USB.\n
Note: Personal Hotspot works only if iPhone is connected to the Internet over the cellular data network. Data charges may apply.