Tutorial 1: Transfer Contacts from Samsung to iPhone Using Phone Transfer
To complete the transferring process in the shortest time, Jihsoft Phone Transfer may be a good choice, as this program is designed to quickly transfer contacts as well as messages(sms messages, whatsApp messages, iMessage, mms), photos, videos, apps, notes, reminders and more between android phone and iPhone.
Step 1: Download this software, launch it and select "Phone to Phone"
Step 2: Connect your 2 phones to pc with usb cable and waiting them to be detected by this program.
Step 3: After connection, select "Contact" from the left and click "Star Copy" .
Tutorial 2: Transfer from Samsung to iPhone Using Email Accounts
1. Go to "Settings" > "Account" on your old Samsung, such as Samsung Galaxy S4, Samsung Galaxy S5, Samsung Galaxy S6, Samsung Galaxy Note 4, Samsung Galaxy Note 3 to sync it with Google account.
2. Go to "Settings" > "Mail, Contacts, Calendar" >"Add Account"> Via Google from your iPhone 6/6S/6S Plus.
3. Enter your Google account and choose the "Contacts" that you want to sync, then tap "Save" and your iPhone will import the contacts.
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