Steps:
1、Open Settings
2、Choosing email&accounts
3、Tapping add an account
4、Choosing Outlook and input email address(eg:sample@gmail.com) and typing password
5、Filling Domain field is m.google.com(important)
6、Filling Server field is m.google.com (important)
7、Checked Server requires encryted(ssl) connection
now,you can sync google calendar,mail,contacts,etc. enjoy it.