There are no shopping carts or baskets inside the new Amazon Go store in Seattle. It feels as if you?re entering a subway station with a row of gates guarding the entrance to the store, allowing you in only if you have Amazon?s smartphone app. The checkout process is automated and you put items directly into a shopping bag. Every time you take an item off a shelf, the product is automatically put into the shopping cart of your Amazon online account. If you put the item back on the shelf, Amazon removes it from your virtual cart.
www.nytimes.com/2018/01/21/technology/inside-amazon-go-a-store-of-the-future.html