Measurement correlation and information tracking for a portable device

A method comprising:

• receiving, during a first time period, first physiological data from a bio-impedance sensor engaging a body of a user;
• receiving, during the first time period, second physiological data from an optical sensor engaging the body of the user;
• receiving environmental data from an environmental sensor engaging from an area approximate the body of the user;
• analyzing, using at least one processing device, the first physiological data to determine a first correlation between the first physiological data and a physiological parameter associated with hydration;
• analyzing, using the at least one processing device, the second physiological data to determine a second correlation between the second physiological data and the physiological parameter;
• analyzing, using the at least one processing device, the environmental data to determine a third correlation between the environmental data and the physiological parameter;
• predicting a first change in a level of the physiological parameter based on the first correlation and the second correlation;
• predicting a second change in the level of the physiological parameter based on the third correlation;
• and
• displaying, by a display, a notification based on the predicted first change or the predicted second change in the level of the physiological parameter, wherein the notification indicates an action for the individual to perform based on the predicted first change or the predicted second change.

An apparatus comprising:

• a non-transitory computer-readable medium to store instructions and data;
• a processing device coupled to the non-transitory computer-readable medium, the processing device configured to execute the instructions to:
• receive first physiological data from an optical sensor;
• receive second physiological data from a bio-impedance sensor;
• receive environmental data from an environmental sensor;
• analyze the first physiological data to determine a first correlation between the first physiological data and a physiological parameter of a body of a user;
• analyze the second physiological data to determine a second correlation between the second physiological data and the physiological parameter;
• analyze the environmental data to determine a third correlation between the environmental data and the physiological parameter;
• predict a first change in a level of the physiological parameter based on the first correlation and the second correlation;
• and
• predict a second change in the level of the physiological parameter based on the third correlation;
• and
• a display coupled to the processing device, the display being operable to provide a notification based on the predicted first change or the predicted second change in the level of the physiological parameter, wherein the notification indicates an action for the individual to perform based on the predicted first change or the predicted second change.