Which IoT innovation was first widely adopted by major sports retailers to allow customers to virtually test athletic shoes before purchase?

The sports retail industry has been transformed by innovative technologies aimed at enhancing the customer experience and driving sales. From smart fitting rooms to virtual reality product trials, tech integration has become a cornerstone of sports retail strategy. This trivia question tests your knowledge about a cutting-edge IoT innovation that's changing how athletes interact with products before purchase. How well do you understand the intersection of sports retail and technology?

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Smart treadmills that measure gait analysis and recommend ideal shoe types based on running patterns
RFID-enabled mirrors that show product information when items are brought near them
Bluetooth-connected insoles that pair with smartphones to track foot movement
NFC-embedded display stands that transfer product videos to customers' phones upon touch