I started thinking my Health-O-Meter digital was inaccurate so I bought a different model Health-O-Meter and it sadi the same thing so guess it is a keeper.
Scales vary, they are just a tool but over time they are a good tool to let us know the trend in our weight.
I also measure once a month to ensure I am not kidding myself by the fact that my clothes fit.
The fit of clothes varies over time and that often has to do with the fact that we stretch them or the temp outside changes and the fibers relax or a zillion things. Measuring lets me know, too, if I am gaining scale weight and gives me an idea if that weight is muscle or fat because if it is muscle, I am leaner and smaller and if not, I am lighter but puffier. The fit of clothes is not a good measure of anything.