A method in an electronic device, the method is for monitoring correct placement of a first physiologic sensor in/on/at an ear of a user, the first physiologic sensor is arranged in a hearing device, the first physiologic sensor in the hearing device is configured for monitoring the heart rate of the user wearing the hearing device, the electronic device and the hearing device being connected, the method comprises at the electronic device: - receiving first physiologic sensor data from the first physiologic sensor; - receiving second physiologic sensor data from a second physiologic sensor provided in an external device, where the external device is configured for detecting the heart rate of the user using the second physiologic sensor; - comparing the first physiologic sensor data from the first physiologic sensor with the second physiologic sensor data from the second physiologic sensor; - determining whether the first physiologic sensor data match the second physiologic sensor data; - in accordance with a determination that the first physiologic sensor data match the second physiologic sensor data, setting a reference physiologic sensor data based on the first physiologic sensor data and/or the second physiologic sensor data; - in accordance with a determination that the first physiologic sensor data do not match the second physiologic sensor data, providing a notification regarding adjusting the position of the first physiologic sensor in/on/at the ear of the user; and wherein the method further comprises detecting first heart rate variability, HRV, data based on the first physiologic sensor data and/or detecting second heart rate variability, HRV, data based the second physiologic sensor data. - receiving first physiologic sensor data from the first physiologic sensor; - receiving second physiologic sensor data from a second physiologic sensor provided in an external device, where the external device is configured for detecting the heart rate of the user using the second physiologic sensor; - comparing the first physiologic sensor data from the first physiologic sensor with the second physiologic sensor data from the second physiologic sensor; - determining whether the first physiologic sensor data match the second physiologic sensor data; - in accordance with a determination that the first physiologic sensor data match the second physiologic sensor data, setting a reference physiologic sensor data based on the first physiologic sensor data and/or the second physiologic sensor data; - in accordance with a determination that the first physiologic sensor data do not match the second physiologic sensor data, providing a notification regarding adjusting the position of the first physiologic sensor in/on/at the ear of the user; and - in accordance with a determination that the first physiologic sensor data match the second physiologic sensor data, setting a reference physiologic sensor data based on the first physiologic sensor data and/or the second physiologic sensor data; - in accordance with a determination that the first physiologic sensor data do not match the second physiologic sensor data, providing a notification regarding adjusting the position of the first physiologic sensor in/on/at the ear of the user; and