Sync contacts with your iOS device
To sync your Google contacts with your Apple iOS device (iPhone, iPad, iPod touch), we recommend using CardDAV, which is an Internet open standard. When you sync your Google contacts using CardDAV, you’ll be able to edit, add, and remove contacts from your device and keep them in sync everywhere you use them.
Syncing via CardDAV is only available over SSL1 for Apple devices on iOS version 5.0 and above. If you use Google Apps for Business, use Google Sync to sync your contacts.
Here’s how to sync your contacts to your device:
- Open the Settings application on your device.
- Select Mail, Contacts, Calendars.
- Select Add Account...
- Select Other
- Select Add CardDAV Account
- Fill out your account information in the following fields:
- Server: Enter "google.com"
- User Name: Enter your full Google Account or Google Apps email address.
- Password: Your Google Account or Google Apps password. (If you’ve enabled 2 Step verification, you’ll need to generate and enter an application specific password.)
- Description: Enter a description of the account (e.g. Personal Contacts).
- Select Next at the top of your screen.
- Make sure that the "Contacts" option is turned to ON.
After you've completed setup, open the Contacts app on your device, and syncing will automatically begin.
출처 : http://support.google.com/mail/bin/answer.py?hl=en&answer=2753077