Which groundbreaking IoT retail technology, first widely implemented in 2016, eliminated traditional checkout lines and revolutionized the in-store shopping experience?

The Internet of Things (IoT) has transformed modern retail in remarkable ways. From inventory management to customer experience, IoT devices have revolutionized how stores operate and how consumers shop. This breakthrough technology represents one of the most significant innovations in retail history. Test your knowledge about a pivotal IoT retail innovation that changed how we interact with physical stores!

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Amazon Go's 'Just Walk Out' technology
Walmart's RFID SmartCart system
Target's ShopperPath facial recognition
Apple's iBeacon checkout terminals