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In a move that could revolutionise the way we buy groceries, Amazon opens its first supermarket without checkouts – human or self-service – to shoppers on Monday.

Amazon Go, in Seattle, has been tested by staff for the past year.

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

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

On entering the store, shoppers walk through gates similar to those in the London underground, swiping their smartphones loaded with the Amazon Go app.

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