Thank you very much for this post. I'm glad someone did the effort of getting some of those and presenting them from the PoV of a first time experience. I was curious.
However, I'm not sure what you meant with:
BUT when I shared it with others, people in body reported less effectiveness due to thickness of skin and under-dermal stuff, so it's better to test it if you aren't skinny as a skeleton.
At first it sounds like you say that overweight people have trouble using them (which is logical, the device needs to touch the bones), but then you go on saying that it doesn't work for underweight people? I'm confused. Could you please elaborate a little? Thanks 🙂