AT&T Wireless offers the Fitbit Flex Wireless Activity and Sleep Wristband in Black, model no. FB401BK, for $79 with free shipping. That's a buck under our mention from three weeks ago and the lowest total price we could find by $14. It tracks your daily activity and sleep patterns to help you attain your fitness goals. It includes large and small wristbands.
A close price: As a reader found, Amazon offers it for a buck more.