The main objective of the present invention is to design a compatible and a novel device (100) with reduced form factor to measure and monitor the biological conditions of a living body and communicate it to the remotely connected device. It monitors almost all crucial factors such as hear rate, calorie count, physical activity, sleep, tiredness, posture etc. The device comprises of components that are comfortably packed into a plastic shell that is separated as two lobes along with a pair of permanent magnets to help in firmly positioning the device on the ear. The main components of the device are heart rate monitor, accelerometer, microcontroller and a wireless communication module.