I just got a scan in a gym, with impedance scales which are claimed to be at a 2% error relative to a Dexa scan.
I am 1’83 meters (s ft) tall. I have been at 88 kg or thereabouts for years, and I am now at 95. The scan says I am at 17’5% of fat. I cannot really believe that, because that would mean that I was at about 10/11% when I was at 88 kilos. 10/11% is vascular and showing a six-pack , right? I never got there. So I can only guess, the impedance scales at the gym are way off. I would hazard a guess, they must be off by about 5% fat.