Which pioneering IoT technology did Amazon first introduce in their Amazon Go stores that revolutionized the checkout experience?

The Internet of Things (IoT) is transforming retail experiences in ways we couldn't imagine a decade ago. From smart shelves to interactive mirrors, retailers are leveraging IoT to create more personalized shopping experiences, optimize inventory management, and gather valuable customer insights. This poll tests your knowledge about one of retail's most innovative IoT applications that's changing how we shop.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Just Walk Out technology (computer vision and sensor fusion that eliminates checkout lines)
Smart Cart system (shopping carts that automatically scan items as they're placed inside)
Biometric payment verification (facial recognition payment authorization)
RFID product tracking (radio frequency identification tags that transmit product data wirelessly)