Amazon has the Fitbit Aria Wi-Fi Weight/Body Fat/BMI Digital Smart Scale in white or black for $99.95 (regularly $129.95) with Free Shipping for a limited time.

The Fitbit Aria tracks your weight, body fat percentage, and BMI, painting a picture of your long-term progress. Using your home Wi-Fit network, it wirelessly syncs your stats with online graph and mobile tools that help you stay motivated and on track. It recognizes up to eight users and keeps individual results private.