These smart shopping carts will let you skip the grocery store line

Washington, DC (CNN)Tired of standing in line? Wait a bit longer, and you may never have to again. Everyone from Amazon (AMZN) to Silicon Valley startups are trying to eliminate lines in retail stores. Amazon has opened 24 of its Amazon Go stores, which use cameras and artificial intelligence to see what you’ve taken off shelves and charge you as you walk out. Some startups such as San Francisco-based Grabango are closely mimicking Amazon’s approach of using AI-powered cameras mounted in ceilings to identify what you’veremoved from a shelfandthen charge you for those items. But others are trying an entirely different route to...

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