Girls.... are we a little scale obsessed? Six times in a row?
A good scale is expensive, a low battery is also going to produce less accurate responses too.
I love my scale (Target, I think it was called Yoga) because it's pretty.
I weigh myself once a day, and take a average for the week. That also prevents me from the whole binge at the beginning of the week, and starve when you know you're getting back on the scale (very common in those WW circles).
But I rely more heavily on the ol' measuring tape. I went from a hip measurement of 57" to 53" and that feel more concrete to me.