If you dont want to loose your contact list on your phone it is a good idea to take a backup on android.
How to backup Android device.
If you are updating your phone it can be a good idea to backup your contact list before doing so. Usually this is not necessary but if you are unlucky you can loose all your data including your contacts.
If your contacts appear here your contacts are backed up already
The good news
Thankfully Google has made Android Os in such a way that if you have linked your Android phone to your Gmail, your contacts are most likely already synced with your gmail.
In the upper left corner under the Google logo press where it says Gmail.
In the drop down that appears choose Contacts.
Your contacts should appear.
If you saw your contact list from your phone in that list you are done. Google has already backed up your contacts.
If you did not find your contacts there are some things you need to do to make sure that they are backed up.
How to backup your Android contacts
Go to your phones settings ( if you don’t have a shortcut on your homescreen you can find it in your list of apps )
Scroll though this menu and press the tab that says Back up and reset.
Now what you have to do is make sure the Back up my data tab is checked, and if it is not, check it right now.
This should ensure that your contacts are backed up automatically. As soon as you ad a contact to your phone it will get synced to your Gmail account.
If your phone is lost or you loose it in the toilet or any other action that may lead to involuntarily buying a new phone you can now rest asured that your contact list is intact.
If for any reason you are switching phones it is a good idea to backup you contact data. I can clearly remember in the olden days when one was forced to manually insert all ones contacts into your new phone by writing everyone’s number and name into the contact list one by one.
Another way to backup your Android contacts
Open the contact list on your phone.
Hit the menu button from your contact list.
From the list that appears hit the import/export tab.
This will bring up a list of available export and importing options.
Once you have picked the option that applies to you the list will be backed up. What’s left to do is import the contact list on your new phone.