San Francisco - Fitbit will begin shipping this week its Aria Wi-Fi Smart Scale.

Aria is a high-performance digital scale that tracks weight, body fat percentage and body mass index, and can automatically upload the info via Wi-Fi to a users' personalized online Fitbit account. The account lets a user set weight goals, track progress, and garner extra motivation by earning reward badges through Fitbit's online tools.

The Fitbit online dashboard is also accessible through a free iPhone and Android app.

The Aria scale recognizes by weight up to eight people in a household. Customizable privacy settings allow data to be shared within a household or with friends, family or like-goaled Fitbit users online.

The Aria allows Fitbit.com to track weight metrics with graphs and charts and set goals with food and activity logging tools.

Fitbit said set-up is less than five minutes on a smartphone or browser.

The Fitbit Aria retails for $130 and is now available in black and white on www.fitbit.com and in Best Buy and Brookstone stores nationwide.

"Fitbit is dedicated to creating products and services that allow you to easily understand and analyze your everyday health in one simple account," said James Park, CEO and co-founder of Fitbit. "With our newest device, Fitbit Aria, and our mobile and online tools, you'll understand more about your weight and be empowered to set and achieve your weight goals."