Fitbit's Aria WiFi smart scale is a great add-on for anyone using a Fitbit to track progress towards their fitness goals. The current 23% discount shaves a solid $30 off its regular $129.95 list price, so you can buy it now on Amazon for $99.95 (see this item on Amazon). The Fitbit Aria will accurately track weight, % body fat, and Body Mass Index (BMI) for up to 8 users. Using WiFi, data is automatically uploaded to your Fitbit account, so you can graph and track your progress easily and privately online. The product averages 3.5 out of 5 stars from over 6,200 people on Amazon (see reviews). Click over to Amazon for more information and to review buying options for the discounted Fitbit Aria smart scale.