Nike SportWatch GPS Powered by TomTom with Shoe Pod Sensor White/Silver 1JA0.017.05 - Best Buy
Running footpods are making a comeback - Wareable
全新Nike Foot Pod, 男裝, 運動服裝- Carousell
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Bean Pod 2 Pk: Universal Nike+ iPod Sensor Holder - Nike Plus iPod Sensor Cases, Works w/ All Shoes: 1 Red Sensor Shoe Pouch and 1 Blue Sensor Shoe Pouch | Amazon
Amazon.com : Nike+ Stand Alone Sensor Kit : Nike Plus : Sports & Outdoors
Nike+ Plus Foot Pod Sensor GPS Sport Watch Anthracite/Red TomTom fitness runner
Nike adapter device can count the number of steps you take.