I bought this device a few days ago and I've been using it ever since. I'd come to simply accept that the readings jump up and down if I measure every single day. The body is in flux way too much to be measured with a device like this on a daily basis. So instead, I measure once per week. In truth, I don't even need it to be accurate, I just need it to be consistently inaccurate so that I can know if I'm moving in the right direction or not.
I have used multiple scales and fat measuring devices and I am glad to now own this product. Very professional and easy to use. It provides consistent results for multiple users and clients. I would recommend this for anyone that is looking to get leaner and measure body composition. Although I do not believe it is 100 percent accurate, it does provide results within 2-3 % accuracy; and it creates consistent results.