iSave via Walmart offers the refurbished Garmin Vivofit Fitness Band in Black (pictured), model no. 010-01225-00, for $88.99 with free shipping. That's the lowest total price we could find by $1. This activity tracker uses past behavior to recommend daily goals to improve fitness. It also functions as a sleep monitor. A 1-year warranty is included, however it's unclear who backs it.
Need it with a heart rate monitor? Beach Camera via eBay offers refurbished Garmin Vivofit Fitness Band, with the Garmin Heart Rate Monitor for $129 with free shipping. That's $40 under the the lowest total price we could find to purchase these items separately elsewhere. The heart rate monitor pairs with the fitness band to provide more detailed activity tracking. A 1-year Garmin warranty is included.