If you are in a Wi-Fi® coverage area and your wireless service plan supports it, you can connect to a Wi-Fi network so that your BlackBerry® device uses the Wi-Fi network instead of the mobile network to send and receive email messages, visit web pages, and so on.
You can also connect to hotspots. Your wireless service provider might provide an application for your device that allows you to log in to a hotspot. If you do not have an application on your device, you might have to set up your own account online and log in manually.
You can connect to a Wi-Fi network without saving the connection information, or you can save the connection information in a Wi-Fi profile, so that the next time you are within range of that network, your device connects to it automatically. You can also set up your device so you are prompted to connect manually. When your device is connected to a Wi-Fi network, the Wi-Fi profile name appears at the top of your Home screen.