Sync iphone contacts with Google
Open your iPhone or iPad's Settings app.
Tap Contacts Accounts Add Account Google.
Enter your email and password. If you use 2-Step verification, use an app password.
Tap Next.
Switch "Contacts" on.
At the top, tap Save.
To start syncing, open your iPhone or iPad's Contacts app.
If you have a work or school Google Account
Some details, like job titles from a company directory, might not sync. To sync all details, learn how to set up Google Sync.
Contacts aren't syncing
Make sure your Google Account is connected to your iPhone or iPad using SSL, the recommended secure connection.
Open your iPhone or iPad's Settings app.
Tap Contacts Accounts.
Tap your Google account.
Switch "Contacts" on.
Tap Account Advanced.
Switch "Use SSL" on.
Tap Account Done.
Try adding your account again.