A grocery store without checkout lines or cashiers supported through mobile technology sounds like a scene from a futuristic movie. This idea came alive in downtown Seattle in a 1,800 square foot store called Amazon Go. With the Amazon Go app, customers use their smartphones to use the “just walk out” technology, which took Amazon four years to develop. This technology is able to detect when an item is picked up or returned to a shelf so customers can just leave the store with groceries in hand. Amazon Go sells staples, artisan cheese, individually packaged cupcakes, and Amazon Meal Kits which have ingredients inside for a two person meal. The customer will be charged through their Amazon account. Amazon is innovating the e-commerce of giant grocery business through Amazon Go and is working on drive-thru grocery stores and working on private label goods. This innovation of grocery stores should have H-E-B and Whole Foods concerned about the direction of the grocery store industry. Nearly half of U.S. households have an Amazon prime membership, which costs $99 a year including free two-day shipping and many other benefits.