Which innovative product design strategy did Nike use with its FuelBand that revolutionized sports retail, despite the product being discontinued in 2014?

In the early 2010s, athletic apparel companies began exploring wearable technology as a new product category. One company's foray into fitness trackers created a significant shift in how sports brands approached the digital fitness market, despite the product's eventual discontinuation. Test your knowledge about this pivotal moment in sports retail innovation history!

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Creating a closed ecosystem with proprietary metrics (NikeFuel) that drove users to other Nike digital products and services
Implementing biodegradable materials that automatically composted after 3 years of use
Developing the first subscription-based fitness wearable requiring monthly payments to unlock features
Establishing the first retail-based fitness social network that required in-store visits to earn rewards