US Patent 11678812 Systems and methods for monitoring hydration

A smart object may be used to monitor the hydration level of a person. The object has at least two impedance sensors that can be used to sense the complex impedance of a person when a tissue of the user comes into contact with the impedance sensors. The measured impedance can then be used to determine the hydration level of the person. In addition to using the impedance sensors to determine the hydration level of the person, the impedance sensors can also be used to capture an electrocardiogram for the person. The smart object may also be used with another smart object to determine the identity of the user or other physiological parameters of the user such as blood pressure.