How do I sync contacts between Google and iPhone?
There are multiple ways to setup a sync process between Google and iOS devices. We recommend using the CardDAV method as it establishes a standard set of fields between systems.
The general steps are: Open the Settings App on the device > Mail, Contacts, Calendars > Add Account… > Other > Add CardDAV Account (server = google.com, Contacts option = On)
Open the Contacts app on your device and syncing will automatically begin.
We also recommend making Google the default handler for contacts under Settings > Mail, Contacts, Calendar > Contacts - Default Account > Google.