Samsung Galaxy S3: How to Merge Duplicate Contacts

In Samsung Galaxy SIII, there are several way that allow you to retrieve contacts then save them into your phone, such as add it on your own or retrieve it from mms that contains contact or phone number.

See also: How to Save MMS Contacts in Samsung Galaxy S3

You can also retrieve contacts from social network sites and add them to your phone. But, sometimes the contacts you have added may be