Which major retailer first implemented large-scale smart shelf technology that could automatically detect low stock and alert employees in real-time?

Smart shelves represent one of the most significant IoT innovations in modern retail. These intelligent fixtures use weight sensors, RFID technology, and digital displays to transform the in-store shopping experience. They've changed how retailers manage inventory, interact with customers, and collect behavioral data. Test your knowledge about this game-changing retail technology that bridges the physical-digital divide in commerce.

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Amazon (in Amazon Go stores)
Kroger (in partnership with Microsoft)
Walmart (through their IRL smart store initiative)
Target (with their 'Target Forward' technology program)