Northwest-Outdoor via eBay offers the Fitbit Aria Wireless Smart Scale in Black or White, model no. FB201, for $69.95 with free shipping. That's the lowest total price we could find by $35, although we saw it for $2 less a month ago. This scale measures weight, body fat percentage, and body mass index; it uploads the information for use online or via Android or iOS app. Four AA batteries are required and included.