Wi-Fi is a wireless networking technology that can provide Internet access at distances of up to 100 meters, depending on the Wi-Fi router and your surroundings.
To use Wi-Fi on your phone, you must connect to a wireless access point. Some access points are open and you can simply connect to them. Others are hidden or implement other security features, so you must configure your phone so it can connect to them.
Turn off Wi-Fi when you’re not using it, to extend the life of your battery.
The following Status Bar icon indicates your Wi-Fi status.
Connected to a Wi-Fi network (waves indicate connection strength).
When you connect to a Wi-Fi network, the phone obtains a network address and other information it needs from the network, using the DHCP protocol. To configure the phone with a static IP address and other advanced settings, from the Wi-Fi settings screen, touch and hold the connected network. Tap Modify network in the Context menu that appears, then checkmark the Show advanced options.