You should be careful with some of these websites that claim what the best scale is. Most of them are just paid off and they could care less about being right as long as their affiliate link gets them some money off of it. I think that unless you're like a scientist or something, most scales you find in major retail stores, or even cheaper Amazon ones, will be mostly accurate enough for your purposes. The small amount of weight that's over or under will be inconsequential when it comes to diet or other things like that.