Fitbit Aria vs Fitbit Aria 2

Aria 2 automatically syncs through WiFi and measures body fat (BMI is just a calculation). Aria AirAria AirGet a more complete picture of your health with Fitbit Aria Air™, an easy-to-use smart scale that displays your weight and syncs it to the Fitbit app where you can view BMI, track trends over time and more.https://www.fitbit.com › global › products › scales › aria-airFitbit Aria Air Smart Scales | Shop will have to be manually synced with your app via Bluetooth and cannot measure body fat, it will just tell you your BMI based on your account. It's basically a slimmed down version of the scale.