iPhone 4S not syncing with my Google calendars
Solution 1:
You'll need to make sure that your account is properly configured in Settings > Mail, Contacts, and Calendars.
Since you're using Gmail, make sure that Calendars are set to ON and then go to the Calendar app and make sure all the calendars are selected to be displayed by tapping "Calendars" in the top left corner and checking off all the calendars you want to see from your Gmail account.
