Amazon’s Go concept uses a combination of sensors and cameras to track what each store shopper takes off of shelves so it can automatically bill them for their purchase without their having to stop to pay on the way out. The store’s launch has been severely delayed, however, with reports that the technology did not work well when the store was crowded.
Walmart is envisioning a similar system that would potentially eliminate the need for cashiers in stores outfitted with the technology. Walmart has more than two million employees worldwide, many of whom work at checkout.