Do they track more than BMI?
There are smart scales in the market that measure more than just the BMI of a person and also calculate several factors.
If you are taking a smart scale, you can get different features and costs depending on the machine and its brand.
You can get yourself a smart scale from https://www.amazon.com/Vont-Smart-Body-Scale-Black/dp/B08XYX8RDR/?th=1