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Sherry Shum has embraced a new shopping routine after finding a smart vending machine near her home in Chai Wan. The 37-year-old retail worker uses her phone to scan a QR code, opens the smart machine’s door, picks up a bottle of Coca-Cola, an oolong tea and a pack of potato chips, closes it and walks away with HK$60 (US$7.70) worth of goods. The whole process is so seamless that the only time she spends is deciding what to buy. The moment Shum takes an item from the shelf, the machine detects...
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