Wii Fit vs Tanita Scale accuracy

mpdpratima

I have both and the Tanita is STUCK at one number no mater what I do, the Wii Fit is showing a 2 pound weight loss. What do you think? I have noticed that the Wii Fit shows gradiants of loss while the Tanita only goes by 1 and 1/2 pound differences. Today, there is such a huge variance, I wonder if my batteries are going or something. Anyone have both of these items?