Amazon opens a supermarket with no checkout

In a move that could revolutionize the way we buy groceries, Amazon has opened a supermarket with no checkout operators or self-service tills.

Long lines formed outside the Amazon Go store in Seattle before it opened its doors to the public at 7am today.

It uses hundreds of ceiling-mounted cameras and electronic sensors to identify each customer and track the items they select.

Purchases are billed to customers’ credit cards when they leave the store.

On entering the store, shoppers walk through gates swiping their smartphones loaded with the Amazon Go app.

Then they are free to put any of the sandwiches, salads, drinks and biscuits on the shelves straight into their shopping bags.

Unless you need to be ID-checked for an alcohol purchase, there’s also no need for any human interaction at all.

With the help of sensors on the shelves, items are added to customers’ Amazon Go account as they pick them up – and delete any they put back. An electronic receipt is issued as they exit.