IPhone – How to force a sync update between Gmail contacts and iPhone with iOS 9

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I am successfully synchronizing my iPhone contacts with my GMail account.

When adding a new contact in my GMail account, the new contact takes a few hours to sync to the device. This is cumbersome, because often I add a contact on GMail and wish to call that contact from my iPhone.

Is there a way to force an iPhone contact sync update with my GMail account, so that new contacts will be immediately updated on the iPhone?

Best Answer

External account settings can be found under Settings-> Mail, Contacts, Calendars-> Fetch New Data.
Configure the frequency of synchronization on the bottom of the screen. It is possible to update in "real time" if "Push" is turned on, but this will have a negative impact on battery life.