Amazon bought out Whole Foods, so they are now in the grocery store business. They are beta testing a new concept called, “No Lines – No Checkout”. They have created technology where you, as the consumer, can sign up for the mobile app and enter your payment card information. When you enter an Amazon Go grocery store, you simply scan your QR code associated with the Amazon Go app. Then shop and pick up as many items as you want in a bag, and simply walk out the door. Each item is picked up by a scanner that you pass through on your way out. Your card is charged and as you leave the store you can verify how much you spent.
Check it out on YouTube