There can be several ways to import contacts from CSV/VCF files to iPhone. First, while searching on internet you can find different third-party software which allows to import contacts in iPhone but they may charge you more then the expectation; hence I would like to provide you free manual process to import CSV/vCard contacts to iPhone 3GS/4/4S/5.
I am providing you 5 methods to import contacts in iPhone from CSV/VCF.
1. Mail your contacts i.e. CSV/VCF file to your iPhone
This method can be implemented in cases when you have small sized CSV/vCard contacts. It can be the easiest process to import contacts to your iPhone.
Step 1: Compose mail with CSV/VCF file as an attachment & send it to your email address
Step 2: Open mail with your iPhone & click on attachment
Step 3: iPhone will prompt to add to add contact to your iPhone, click & follow the guidelines & process, you will find your contacts added to your iPhone contact list
2. Import CSV/VCF to Gmail and sync Gmail contacts to iPhone
Step 1: Open your Gmail account with your email address & password, Click "Gmail" from the left top & select "Contacts". Now, click "More" & select "Import" from the drop-down list
Step 2: A new pop-up window will open, click "Choose File" & browse for CSV/VCF file location, select the file & click "Open"
Step 3: Click "Import" to add VCF/CSF file to Gmail contacts
Step 4: Launch iTunes on your PC & connect your PC with iPhone via USB data cable
Step 5: Open the summary page by tapping "Devices" on your iPhone in the left sidebar of iTunes
3. Import CSV/VCF into Outlook and sync Outlook contacts with iPhone 3GS/4/4S/5
Step 1: Open Outlook on your PC, go to File menu, select Open -> Import -> Import from another program or file -> Next
Step 2: A new “Import a File” window will open, select “Comma Separated Values (Windows)” or VCF file, then click “Next”
Step 3: Click “Browse” and import CSV/VCF file from your computer, click “Next” and then click “Finish” to import contacts from computer to Outlook Contacts folder
Step 4: Run iTunes on your PC & connect your PC with iPhone via USB data cable
Step 5: Tap on your iPhone under “Devices” entry on the left sidebar of iTunes to show the Summary page and click "info" tab -> contacts -> sync contacts with, select Outlook & click all contacts, after that click "apply" from the bottom-right and then and "Start" the process to sync Outlook contacts to iPhone 3GS/4/4S/5
4. Directly Import VCF File contacts to iCloud
Step 1: Turn on contacts option of iCloud on your iPhone by checking settings -> iCloud -> turn "contacts" on
Step 2: Open https://www.icloud.com on your PC & log-in with your apple ID & password to your iCloud account
Step 4: Browse & select VCF file from your PC & click "Open", contacts from vCard will automatically add to your iCloud contacts list and you can find the contacts into your iPhone 3GS/4/4S/5 address book
5. Import CSV/VCF to Windows contacts and sync contacts to iPhone
Step 2: Click "Import" to open "Import Windows Contacts" pop-up window, select "CSV (Comma Separated Value)" or "vCard (VCF file)" & click "Import"
Step 3: Browse and select CSV/VCF file & click "Next" after that you can "Map the Fields you wish to Import" and click "Finish"
Step 4: Launch iTunes on your PC -> connect your iPhone & computer with USB data cable
Step 5: Tap on your iPhone under “Devices” entry on the left sidebar of iTunes to show the Summary page and click "info" tab -> contacts -> sync contacts with, select "Windows contacts" & click "apply" and "sync" on right corner