Can Calsa show my smart scale?

A smart scale can appear in Calsa if its own app sends weight or body-fat data to Apple Health or Health Connect and you allow Calsa to read that type. Calsa does not pair with the scale directly.

First check that the measurement exists in your phone's Health service, then check the Calsa connection. If the scale does not supply that data through Health, you can enter weight manually. A missing body-fat measurement cannot be filled by guessing from a photo or typing an invented value.