The fitbit one came with this velcro sleep wristband. http://www.blogcdn.com/www.engadget.com/media/2011/10/fitbit-ultra-wristband.jpg http://www.blogcdn.com/ww

The fitbit one came with this velcro sleep wristband. http://www.blogcdn.com/www.engadget.com/media/2011/10/fitbit-ultra-wristband.jpg http://www.blogcdn.com/www.engadget.com/media/2011/10/fitbit... When I want to ride, I take my fitbit out and put it into the velcro band and tie it around my ankle. It works surprisingly well, registering approximately each pedal stroke as a step. I register around 8,000 steps for a 15-mile bike ride. Since a 15 mile ride is a lot more exercise than 8,000 steps, I'll also mark in the app that I went cycling, and that's that.