A wrist-worn apparatus control with fingerprint data includes a physical activity-related measurement sensor interface, a fingerprint sensor, one or more processors, and one or more memories including computer program code. The one or more memories and the computer program code are configured to, with the one or more processors, cause the apparatus at least to receive fingerprint data from a user with the fingerprint sensor, identify the fingerprint data as matching with one finger of the user on the basis of a comparison between the fingerprint data and reference data of a plurality of fingers of the user stored in the memory, and select a function of a physical activity-related measurement on the basis of the identified finger.