A portable apparatus comprising: an exercise-measurement circuitry configured to measure exercise-related measurement data related to a user carrying out an exercise; a communication circuitry configured to provide the portable apparatus with wireless communication capability; and a processing circuitry configured to: receive the exercise-related measurement data from the exercise-measurement circuitry, receive configuration data from an external user interface apparatus over a bidirectional wireless communication connection established through the communication circuitry and capable of transferring payload data to both directions, wherein the received configuration data includes exercise-related parameters; process the exercise-related measurement data according to the received exercise-related parameters in order to obtain advanced exercise-related data, and communicate the advanced exercise-related measurement data to the user interface apparatus over the bidirectional wireless communication connection, characterized in that the configuration data comprises a type of the exercise to be conducted, and in that the portable apparatus is configured to activate and/or deactivate sensors on the basis of the type of the exercise that is to be conducted. an exercise-measurement circuitry configured to measure exercise-related measurement data related to a user carrying out an exercise; a communication circuitry configured to provide the portable apparatus with wireless communication capability; and a processing circuitry configured to: receive the exercise-related measurement data from the exercise-measurement circuitry, receive configuration data from an external user interface apparatus over a bidirectional wireless communication connection established through the communication circuitry and capable of transferring payload data to both directions, wherein the received configuration data includes exercise-related parameters; process the exercise-related measurement data according to the received exercise-related parameters in order to obtain advanced exercise-related data, and communicate the advanced exercise-related measurement data to the user interface apparatus over the bidirectional wireless communication connection, receive the exercise-related measurement data from the exercise-measurement circuitry, receive configuration data from an external user interface apparatus over a bidirectional wireless communication connection established through the communication circuitry and capable of transferring payload data to both directions, wherein the received configuration data includes exercise-related parameters; process the exercise-related measurement data according to the received exercise-related parameters in order to obtain advanced exercise-related data, and communicate the advanced exercise-related measurement data to the user interface apparatus over the bidirectional wireless communication connection, characterized in that the configuration data comprises a type of the exercise to be conducted, and in that the portable apparatus is configured to activate and/or deactivate sensors on the basis of the type of the exercise that is to be conducted.