Learn how to connect internet on iPhone 6. iPhone connects to the Internet whenever necessary, using a Wi-Fi connection (if available) or your carriers cellular network. For information about connecting to a Wi-Fi network, Refer How To Connect WiFi.
Note: If a Wi-Fi connection to the Internet isnt available, apps and services may transfer data over your carriers cellular network, which may result in additional fees. Contact your carrier for information about your cellular data plan rates. To manage cellular data usage, Refer How To Use Cellular Settings.