Abstract: There is provided a device, system and method for continuously monitoring a physiological condition such as diabetes in a body. The disclosed method comprises detecting a variation in capacitance value of a sensor coil when the sensor coil is placed in vicinity of the body and displaying the detected variation on a display unit, wherein the sensor coil has a fixed inductance value. The display unit is further integrated with a communication unit for communicating a monitored physiological condition in the body with an external communicating unit. The proposed device is non-invasive and in a form of a wearable.