Steps to Sync Facebook Contacts with AndroidStep 1. Launch Facebook app on your Android and sign in your Facebook account.
Step 2. Tap on "Menu" button >"Settings" > "Sync Contacts" and you will see three different options (sync all, sync with existing contacts and remove Facebook data).
Note: Let me explain the difference between the three options.
If you want to import contacts, your albums, photos that you tagged and more, choose "Sync all"; If you want to import contacts from Facebook only, choose "Sync with existing contacts";
If you want to clear all Facebook sync with your Android, choose "Remove Facebook data".
Choose the one you want and tap "OK" to start the syncing process.
That's really handy to sync Facebook contacts from Android to Android. If you want to transfer contacts from Android to iPhone, the steps are similar. What you need is the Facebook app on your iPhone. Besides the contacts, you can also transfer Facebook app from old Android to new one if you want.