Which retail innovation holds the Guinness World Record for the 'Largest Implementation of Internet of Things (IoT) Sensors' in a single retail chain?

The retail landscape has seen numerous groundbreaking innovations that have set world records and transformed how consumers shop. From the largest IoT implementation to the most successful loyalty program launch in history, retail innovation continues to push boundaries. Test your knowledge about these remarkable retail achievements that have earned their place in the record books and changed the industry forever.

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Amazon Go's cashierless store network with over 50,000 cameras and sensors
Walmart's inventory management system with 2.3 million RFID tags and sensors
IKEA's customer tracking system with 1.7 million heat and motion sensors
Target's smart shelf technology with 1.9 million price and inventory sensors