Always have a Back Up
It is always important to make sure your device is backed up so that you don’t lose any of your important data.
With your Google Account you can back up all the most important information such as: App Data, Calendar, Contacts, and emails.
When you log into your Google Account on the device, it will begin to automatically back this data up, and can be toggled off from the Accounts Settings.
You can also choose to sync the information manually, in the event you would like to ensure a backup is kept with your Data!