Walmart’s checkout tech spots mismatches in seconds: cameras, sensors, and smarter codes pause lanes fast, then keep lines ...

(Reuters) - Wal-Mart Stores Inc said it is tripling the number of U.S. stores in a pilot program that lets shoppers scan items with their iPhones and pay at self-checkout counters. Walmart's "Scan & ...

Shopping via smartphone is nothing new. And plenty of people whip out their smartphones to comparison shop in stores, much as the retailers hate it. But Walmart may be the first store in the area that ...