You would need to buy the sensor unit (#0013100 like you stated) for this Nike + Sportwatch GPS Without Sensor. But everywhere I look seems to state the watch needs to plug into a USB port on your computer to set it up. After set up, I'm sure there is a way to link your Ipod to this application to retrieve your data. But I'm way behind on the computer technology and can't say for sure. For detailed information on the Nike + applications, I will provide a link for you explaining more:http://nikeplus.nike.com/plus/suppo...
answered 1 year, 11 months ago