Which innovative IoT technology was FIRST widely adopted by major sports retailers to revolutionize the in-store athletic footwear shopping experience?

The sporting goods industry has undergone massive digital transformation in recent years. Major retailers have implemented cutting-edge IoT solutions to enhance customer experiences and streamline operations. This trivia question tests your knowledge about how leading sports brands are leveraging Internet of Things technology in their physical retail spaces. Do you know which innovative solution has changed the game for athletic footwear shopping?

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RFID-enabled 'smart shelves' that automatically track inventory and notify staff when restocking is needed
3D foot-scanning technology that creates digital profiles to recommend the perfect fitting shoes
AR mirrors that let customers virtually 'try on' different shoe models without physically changing footwear
NFC-tagged shoes that deliver product specifications and reviews when tapped with a smartphone