Weight accurate body fat is not even close.  If you want to measure body fat do not buy!
Body fat % is way off.  Measured at gym at 17% then measured with Aria, said 27%.  I can understand a difference of a few but not 10%.  The only reason I'm giving two stars is because the weight is accurate and it talks to the fitbit app.  Certainly not worth the money.  Fitbit needs to fix this stuff or lower the price and let people know that the body fat% is highly inaccurate.  Not impressed at all.
Rating: 2 stars