It is normal when you decide to upgrade to an iPhone from an android phone such as Samsung Galaxy S6. But it is very complicated to move all your old data from your old android phone to new iPhone, especially copy and sync the Contacts.
These below are easiest Solution Map to transfer all contacts information from Android to iOS in minutes.
Sync the Android Contacts to Google Contacts > Sync the Google Contacts to the iPhone > Done!
How to do? Look at the instruction below:
In a reversed way, if you want to transfer and sync contacts from Android to iOS on iPhone, look at Tips To copy and move Contacts From iOS on iPhone to Android phone.
Sync contacts between iPhone and Android turns to easy. This solution works on all version of iOS (iOS 7.x, iOS 8.x and iOS 9.x) on any iPhone 4, 4S, 5, 5S, 6, 6 Plus and All Android phone such as Samsung Galaxy.