A casing (104) adapted to use with a mobile device (106) for monitoring health condition of a user (102) is provided. The casing (104) includes (a) a memory unit, (b) a sensor unit (302) at a surface of the casing (104), (c) a plurality of health parameter measuring sensors embedded within the sensor unit (302) for measuring raw health parameters data of the user (102), (d) a processor (208) which is activated from a sleep mode based on a user input including contacting at least one predetermined sensor surface on the casing (104) for a predetermined period, and (e) a power unit (220) for controllably supplying power to the sensors and the processor (208) upon detecting the user input. The casing further includes a communication unit (228) for communicating the raw health parameters data to the mobile device (106) for processing.
