Which retail IoT innovation was Amazon the first to widely implement in their Amazon Go stores, revolutionizing the checkout experience?

The Internet of Things (IoT) is transforming retail experiences worldwide. From smart shelves that track inventory in real-time to interactive mirrors that enhance the fitting room experience, retailers are leveraging connected technology to create more efficient operations and personalized customer journeys. Test your knowledge about how IoT is revolutionizing the retail landscape and creating new opportunities for businesses to connect with consumers.

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Just Walk Out technology (cashierless checkout using computer vision and sensor fusion)
Smart shopping carts that automatically scan items as they're placed inside
RFID-based self-checkout terminals that scan all items simultaneously
Facial recognition payment systems that eliminate the need for physical payment methods