Which IoT-powered retail innovation was first implemented at a major sports stadium and has now become an industry standard?

Major sports venues are embracing Internet of Things (IoT) technology to transform the fan experience. From contactless payments to real-time crowd management, smart stadiums represent one of the most significant retail innovations in sports. Test your knowledge about how IoT is changing the game-day shopping experience and creating new revenue streams for sports franchises.

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Mobile seat delivery ordering systems that allow fans to order merchandise without leaving their seats
Cashierless checkout stores using computer vision and sensor fusion (similar to Amazon Go technology)
RFID-tagged jerseys that unlock exclusive digital content and virtual experiences when scanned
Biometric payment systems allowing fans to purchase merchandise using facial recognition