Just over half of Amazon Fresh stores are equipped with Just Walk Out. The technology allows customers to skip checkout altogether by scanning a QR code when they enter the store. Though it seemed completely automated, Just Walk Out relied on more than 1,000 people in India watching and labeling videos to ensure accurate checkouts. The cashiers were simply moved off-site, and they watched you as you shopped.
kroger does as well. it is actually pretty nice, you carry the scanner with you and just scan a barcode at the self checkout once, you don't have to take anything of the cart. idk if they still have it or not, i've since moved away