In some embodiments, a portable monitoring device for monitoring at least one physical parameter of an individual includes: a first sensor unit having a sensor for sensing the physical parameter of the individual a control unit configured for receiving data from the first sensor unit and also from at least one other remote second sensor unit, identifying sensing mode of each of the first and second sensor units, and processing the received data a carrying mechanism for having the portable device carried by the individual to be monitored and one or more output devices for outputting indication and/or information associated with the processed data. The control unit can be configured for processing signal data of the first sensor unit or the remote second sensor unit, according to the identified sensing modes thereof.
