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.
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It’s super expensive, prohibitively so for now although they might actually bring down the cost. But they’re allegedly finding that sales are actually higher in their in-stadium stores compared with the alternative, so it might actually have a legitimate advantage there. Plus they mostly sell overpriced beer there, so it’s not totally crazy that it could be profitable.