GameStop offers the used Microsoft Kinect Sensor for Xbox One for $15.99. Opt for in-store pickup to avoid the $5.99 shipping charge. That's the best deal we've ever seen for a standalone Kinect sensor; it's also $44 under the lowest price we could find for any condition today. It features a 1080p HD camera and allows for movement- and voice-based control of your TV and Xbox One console, Skype calls, live game broadcasting, and automatic sign-in.

Note: No warranty information is provided, but this item can be returned within seven days for a refund.

Update: The price has increased to $19.99.