DO NOT buy this product unless you just want to throw away $150.  I bought one about 2 weeks ago.  I worked literally 1 hour.  Took 1 very incorrect reading.  I contacted them for either a replacement or return and after a lot of bull from them I decided it was all a scam.  I decided on the return.  The only problem with that is after sending them pictures of the device, box, contents of the box and the actually shipment, I've never heard a word from them.  It's now been 5 days since their 2 day response limit.  And not a single word. I'm certain I will not get a refund.  This device is a total waste of your Money. It's a SCAM 100%. 

In my experience, body composition analysis on scales is just a gimmick. I don't see why this would be any different. It all depends on how close you are to their model. If you're not, it can result in complete nonsense. Meaning, it can depend on who is it targeted at. Is it targeted at obese people who are trying to lose weight? Or is it targeted at obsessive athletes? It can't actually measure the composition of your entire body. I guess you can use it for trend monitoring, assuming it gives repeatable results, but you can't take the numbers at face value. However, I don't see what is wrong with simply measuring or just feeling the thickness of the layer of fat.