In India, the retail industry is growing at a rapid pace, and it is at present one of the top 5 destinations for retail
investments worldwide. The retail industry accounts for about 10% of India's GDP. By the introduction of Radio frequency
identification (RFID), computer vision, and sensor fusion technologies in the retail industry helps to increase their empire
rapidly. The objective of this paper is to understand the role of smart technologies like AI and IoT which are introduced in "Just
walk out" or Amazon Go stores which increases the customer experience and saves time.