You can measure body fat percentage using electricity. I believe it works on the differing resistivity of muscle/bone/fat, but I could be wrong. Higher end sca

You can measure body fat percentage using electricity. I believe it works on the differing resistivity of muscle/bone/fat, but I could be wrong. Higher end scales often have a sensor integrated. Takes like 2 seconds to get a reading. I think those sensors being cheap-ish is new. I would expect to see a migration over to body fat percent instead of BMI over the next decade or two as people replace their scales.