do i need a nike shoe sensor with 7th gen ipod nano

Hey faye88,

To use the Nike + iPod system with your nano, these are the requirements:

What do I need to get started using the Nike + iPod system?
You need:

• An iPod nano, iPod touch (2nd generation) and later, or iPhone 3GS and later
• The Nike + iPod Sport Kit if using an iPod nano or the Nike + iPod Sensor if using an iPod touch or iPhone
• Nike+ ready shoes
• iTunes 8 or later

The Nike + iPod Sport Kit is designed for running and walking. Nike+ ready shoes are highly recommended, as they have a specially engineered pocket in the midsole of the shoe for the Nike + iPod Sensor. The Nike + iPod system works with any iPod nano running the latest software, iPod touch (2nd generation) and later, or iPhone 3GS and later.

from: Nike + iPod Frequently Asked Questions (general)

http://support.apple.com/kb/HT1602

Welcome to Apple Support Communities!

Have a great day,

Delgadoh

No, you do not have to have the sensor. If you have the sensor, you can use it with the nano, but it's not required.