Saturn Smartpay is an exciting new app that enables shoppers in our Hamburg store to scan and pay for their shopping using their mobile phones.How to use Saturn Smartpay: 1. Download the app and create your account2. Visit the Saturn Hamburg store at Mönckebergstraße 1, 20095 Hamburg, Germany3. Use the app to scan and pay for your shopping4. Exit the store via the Smartpay Fast Lane