Amazon is scaling back plans for its "Just Walk Out" supermarket system, which allows shoppers to simply grab items from the shelves and leave the shop.
In the company's own Amazon Fresh supermarkets in the US, Amazon's Dash Cart, a networked shopping trolley with a built-in scanner, is to be used instead in future.
Tony Hoggett, Amazon's global grocery stores chief, told the tech website The Information that this system had been found to be more popular with shoppers. He said customers want to have a better overview of how expensive their grocery purchase will be.
Amazon's trolleys show the price of the goods and the total value of the purchase on a display. The items have to be held in front of the shopping trolley's scanner before adding to the cart, which has a built-in weight sensor.
At the end of the purchase, the customer can leave the shop without passing through a check-out and the amount will be debited from their Amazon account. For people who don't want to use this, there are also traditional checkouts.
Amazon has been trying to find the right strategy for bricks-and-mortar retail for years. The company wants to set itself apart from competitors by offering shoppers more convenience. One central idea is to make checkouts obsolete.
The technology, which automatically recognizes which items shoppers pick up from the shelves, has been used by the group for years in its Amazon Go shops, which are significantly smaller than conventional supermarkets.
It will continue to be used there, a spokeswoman said on Tuesday. It will also remain in the smaller "Fresh" shops in the UK.