"DO NOT BUY, won't last a year, $200 disposable product."0.5 starson by scottcotter
Pros: looks cool, easy to use, performs as described, for 6-9 months.
Cons: after a little over a year of use, battery will not get past 45 minutes (for long distance runner, this is useless). Even the watch will not hold a charge throughout a full day. Nike told me to buy a new one on the web site.
Summary: disposable $200 product from Nike. Do not buy this product. Do some searches, you'll find others who are also disappointed that their unit was rendered useless shortly after the warranty expired.