Sync Your Contact between Gmail and iPhone without iTunes
You will use the steps when you want to sync contacts between Gmail account and iPhone. It will work both the way with this method. If this what you are looking for here are the steps 1. Go to <Settings > Mail, Contacts, Calendars > Add Account… and select the Gmail. I am using Gmail as an example but this syncing contact between iPhone and email will work for all email account capable of syncing through