Amazon Go is a new kind of store with no checkout required,
Use app to enter the store, and after that you don’t need it to shop. Browse and shop like you would at any other store and once you’re done you can simply walk out without having to stand in a checkout line.
Amazon Go store opening on Monday in Seattle is about 1,800 square feet store, located at 2131 7th Ave, Seattle, WA, opening from 7AM—9PM open Monday through Friday. The store will offer ready-to-eat breakfast, lunch, dinner, and snack options made by chefs and favorite local kitchens and bakeries. Grocery essentials ranges from bread and milk to artisan cheeses and locally made chocolates. There are Amazon Meal Kits to get the meal ready in 30 minutes!
Although there is no human involvement in checkout a lot of technology in use at the backend, the same types of technologies used in self-driving cars like computer vision, sensor fusion, and deep learning.
Here is a video to explain shopping experience at amazon go store.