A wearable device for continuous monitoring of health parameters of a user, comprising: a housing having a front surface and a back surface, and a processing unit enclosed therein, means for attaching the housing to a part of the user's body, a consumable component configured to be manually coupled and uncoupled with the housing, and having a contact surface provided to be in contact with the user's skin when the consumable component is operatively coupled with the housing and the housing is attached to a part of the user's body, and wherein the consumable component comprises: a sweat collection inlet formed in the consumable component's contact surface, for collecting sweat when the device is worn by the user, at least one sensor for measuring a sweat biomarker, a microfluidic channel for conveying collected sweat from the inlet to the sweat sensor, characterised in that the wearable device further comprises: electric connection means for electrically connecting the sensor with the processing unit, when the consumable component is operatively coupled with the housing, wherein the processing unit is adapted for processing data provided by the sensor, wherein the housing has a pair of guides opposite each other, and wherein the consumable component has a pair of sides wings, and wherein the housing and the consumable part are configured, such that the consumable component is couplable with the housing by inserting its side wings respectively in the guides and by moving the consumable component on the back surface of the housing, wherein the electric connection means are comprised within the coupling surfaces of the pair of guides and the consumable component, wherein the coupling surfaces of the pair of guides and the consumable component are configured to operatively couple in a sealed way so that they seal the electrical connection and wherein the surface of the consumable component configured to contact the surface of the pair of guides comprising the electrical connection means comprises an adhesive surface configured to further seal the coupling. a housing having a front surface and a back surface, and a processing unit enclosed therein, means for attaching the housing to a part of the user's body, a consumable component configured to be manually coupled and uncoupled with the housing, and having a contact surface provided to be in contact with the user's skin when the consumable component is operatively coupled with the housing and the housing is attached to a part of the user's body, and wherein the consumable component comprises: a sweat collection inlet formed in the consumable component's contact surface, for collecting sweat when the device is worn by the user, at least one sensor for measuring a sweat biomarker, a microfluidic channel for conveying collected sweat from the inlet to the sweat sensor, a sweat collection inlet formed in the consumable component's contact surface, for collecting sweat when the device is worn by the user, at least one sensor for measuring a sweat biomarker, a microfluidic channel for conveying collected sweat from the inlet to the sweat sensor, characterised in that the wearable device further comprises: electric connection means for electrically connecting the sensor with the processing unit, when the consumable component is operatively coupled with the housing, wherein the processing unit is adapted for processing data provided by the sensor, wherein the housing has a pair of guides opposite each other, and wherein the consumable component has a pair of sides wings, and wherein the housing and the consumable part are configured, such that the consumable component is couplable with the housing by inserting its side wings respectively in the guides and by moving the consumable component on the back surface of the housing, wherein the electric connection means are comprised within the coupling surfaces of the pair of guides and the consumable component, wherein the coupling surfaces of the pair of guides and the consumable component are configured to operatively couple in a sealed way so that they seal the electrical connection and wherein the surface of the consumable component configured to contact the surface of the pair of guides comprising the electrical connection means comprises an adhesive surface configured to further seal the coupling. electric connection means for electrically connecting the sensor with the processing unit, when the consumable component is operatively coupled with the housing, wherein the processing unit is adapted for processing data provided by the sensor, wherein the housing has a pair of guides opposite each other, and wherein the consumable component has a pair of sides wings, and wherein the housing and the consumable part are configured, such that the consumable component is couplable with the housing by inserting its side wings respectively in the guides and by moving the consumable component on the back surface of the housing, wherein the electric connection means are comprised within the coupling surfaces of the pair of guides and the consumable component, wherein the coupling surfaces of the pair of guides and the consumable component are configured to operatively couple in a sealed way so that they seal the electrical connection and wherein the surface of the consumable component configured to contact the surface of the pair of guides comprising the electrical connection means comprises an adhesive surface configured to further seal the coupling.