The Fitbit Aria 2 is a smart scale that offers advanced readouts such as weight, body mass index (BMI), body fat percentage, and lean mass. It seamlessly integrates with the Fitbit app, making it easy to track weight over time. The scale is easy to use and maintain, and it is reliable and durable. However, the reviewer suggests improving the scale by adding an option to turn off the electric bioimpedance signal for certain individuals. Overall, the scale is highly rated and worth the money for those interested in fitness and weight tracking.