Northwest Outdoor via eBay offers the open-box Fitbit Aria Wi-Fi Smart Scale in White, model no. FB201, for $79.99 with free shipping. That's $5 under our mention from four days ago and $39 under the lowest total price we could find for an unopened model. It features body fat percentage tracking, integration with Fitbit.com, and support for up to eight users.

A 6-month Northwest Outdoor warranty applies.