i have it and i love it...interesting article, scary thought...i would say if anyone can see where you are going when you google a map thru the nike then run without a map...just use your neighborhood or whatever...i use my treadmill and the park near my work...i also dont keep the sensor in my shoes..i actually take it out after every workout...i hope no one can track that...well for only $30 if you purchase without the shoes..i think its $30 well spent...my opinion, i plan on continuing to use it...i love it
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