Aria scales say 5 different weights in 5 minutes

[VivienneI]

How is this possible? Nothing  changed.  Same scales, same person, same position... how can it possibly get so many different recordings?

Totally disgusted with this product because it happens all the time.

[Rich_Laue]

Your not picking up the scale, correct? 

[VivienneI]

Correct. I just step on and step off.

[UnseenHero]

Same for myself, this was today after trying to get an accurate measurement before I start cutting weight. 

[Rich_Laue]

@UnseenHero your only talking about a 1% error when your weight can vary as much as 3-4% through out the day from eating, drinking, using the restroom, heck even go on a run you will lose weight from sweating. 

Unless you use a medical grade scale with counter weights consecutive weighing a won't match. But then they are only good to the nearest pound. 

[UnseenHero]

I agree, but this was all within a 5 minute span where all I did for those 5 minutes was step on and off the scale trying to get the same measure twice in a row. 

[Rich_Laue]

It is within 1%, well within acceptable limits and within the accuracy Fitbit claims. 

Because the readings are so close, I see it as reassurance that the scale can be trusted. 

As for body fat, this is based on weight and your body's resistance to the flow of electricity. Changing foot possition, leaning a little different, or moisture on the feet can affect this 

[Spritely]

If that's the case why does Fitbit go down to one tenth of a kilo or pound if the Aria is not accurate enough to measure to that degree.  Seems a bit misleading to me. I always find the first reading is the lightest but if I get on and off the scales the measurement creeps up and down randomly but is never as light as the first one. 

[SunsetRunner]

I am finding this with the aria 2 scales I got today and considering the price of these devices, I am not impressed.

I use lb's not kg but the other user here who uses lb had over 1lb difference in their example and I don't believe that is an acceptable variance when the measurements are taken immediately one after the other.

I have a £160 set of Seca medical scales and also a £15 set of Salter scales and the £15 ones match the £160 ones every time, and they are accurate to 0.2 lb  - these fitbit ones are about 1lb different to those scales.  They are all digital scales.

Whilst I agree this isn't much of a difference, it could be ignored if the readings were consistent, i.e. they were always 1lb heavier etc, but with the fluctuations seen, that can't be said.

I got these for my wife for the smart features to make her weight tracking more comprehensive with fat composition etc but it seems to me they are just an "average" set of scales and the smart features are just gimmicky.