Similarly, you may ask, how often does Gmail sync?
GMail doesn't have a sync interval - the mail is pushed to your phone when it arrives. No it's not pushed. The minimum interval is 15 minutes - or you can set it longer yet.
Also Know, where is the refresh button on Gmail? The refresh button is above the message list, the second from the left.
Secondly, how do I get Gmail to automatically refresh?
Head to your Labs settings and enable the "Refresh POP accounts" lab, then hit "Save changes" at the bottom or top of the page. From then on, you'll see a "Refresh" link to the right of your inbox buttons. Hit it and Gmail will poll any email accounts you've set it up to fetch from.
What does it mean to sync your Gmail account?
Sync Gmail: When this setting is on, you'll get notifications and new emails automatically. When this setting is off, you have to pull down from the top of your inbox to refresh. Days of mail to sync: Choose the number of days of mail that you want to automatically sync and store on your device.