 The Aria is a high performance scale that shows your weight, percentage body fat and BMI. You can share information with friends through both Facebook or Twitter or directly on Fitbit.com. We can also motivate people with badges. So you can set goals and as you reach those goals we send you badge emails to reward you for what you're doing. The Aria Wi-Fi Smart Scale will be available later this spring in April and it will be priced at $129.