Comparison to Withings Smart body analyzer WS-50: ARIA is Better if you are fitbit user.
I originally purchased this after getting the Fitbit one and had a lot of difficulty setting it up. However, I repurchased it upon a recommendation from a friend. You might have to weigh yourself several times; however, the alternative was the Withings smart body analyzer.  At first, I thought the Withings seemed great at first because it measures everything, heart rate, co2,...etc  then I realized that those things didn't matter that much because my goal was weight loss.  Another disappointment with the Withings WS-50 was that the platform was a lot less user friendly.  It also did not integrate very well with my fitbit dashboard.  In other words, it didn't record the readings every time.<br /><br /> Withings also suffered the same problem as the aria with the fluctuations. Both varies depending on your body position.  Please note! This must be on a hard surface. The aria syncs smoothly and conveniently.  It helps to update your phone to IOS 7 for it to run smoothly. Nothing is perfect but if you have Fitbit tracker, pick the aria and spare yourself the trouble with the Withings.
Rating: 4 stars