Use G Suite on Windows Phone
Using Native Windows Phone apps
Set up your Windows Phone or Windows Mobile device with Google Sync to access your G Suite mail, contacts and calendars using your phone's native applications (requires that your G Suite administrator enables Google Sync for your domain).
Using your phone's mobile browser
You can access many other Google products from a mobile browser. In most cases, you can just go to m.google.com in your phone's browser, touch the product you want to use, and sign in to your G Suite account. For details, see Using any smartphone's mobile browser.