This is accurate to my knowledge…
Scales can’t be used on their own to measure an accurate body fat/muscle ratio. A difference in water alone can make the reading vary by a few pounds. A 15 stone obese person is not going to look the same as a 15 stone bodybuilder despite them being the same weight.
My weight can and does fluctuate by around 2-5lb a day depending on what I eat and how hydrated I am etc.
(I guess my body fat is more around the 15% mark)
Time is progress…