To use the native G Suite mail, contacts, and calendar apps on your Android, you need to sign in to your G Suite account. Instructions below are for users with a Nexus or Google Play edition device running Android 4.2 or higher. If you're using a different device, your setup instructions may vary. You only have to do this once:
Touch the Settings > Accounts > Add account > Google to add your G Suite account.
Select Existing and enter your full G Suite email address as your username and your password.
Touch OK to agree to the Terms of Service. The device will sign in to your domain. This process may take a few minutes.
That's it! You can now use G Suite from your Android. Just launch Gmail, Google Calendar, or whichever app you want to use.
Note: If an app isn’t already installed on your device, such as Google Drive or Google Keep, search for it on Google Play. All G Suite apps that come with our G Suite account will be free for you to download.