A casing adapted to use with a mobile device for monitoring health condition of a user is provided. The casing includes (a) a memory unit, (b) a sensor unit at a surface of the casing, (c) a plurality of health parameter measuring sensors embedded within the sensor unit for measuring raw health parameters data of the user, (d) a processor which is activated from a sleep mode based on a user input including contacting at least one predetermined sensor surface on the casing for a predetermined period, and (e) a power unit for controllably supplying power to the sensors and the processor upon detecting the user input. The processor (i) initializes and configures the sensors, and (ii) receives the raw health parameters data from the sensors. The casing further includes a communication unit for communicating the raw health parameters data to a mobile device for processing.