About synchronizing data on your device
You can sync contacts, email, calendar events, and other information with your device
from multiple email accounts, synchronization services, and other kinds of accounts,
depending on the applications installed on your device. Synchronizing your device
with other information sources is an easy and practical way to stay up to date. You
can synchronize data automatically by activating the auto-sync function.
To activate the auto-sync function
Drag the status bar downward, then tap .
Drag the slider beside Auto-sync to the right.