Eyewear device with fingerprint sensor for user input

A system comprising:

• an eyewear device including:
• a frame;
• an image display;
• a fingerprint sensor including an input surface to receive input of a finger skin surface;
• and
• a sensing circuit integrated into or connected to the fingerprint sensor, the sensing circuit configured to track a pattern of fingerprint ridges of the finger skin surface on the input surface;
• a processor coupled to the eyewear device and connected to the sensing circuit;
• a memory accessible to the processor;
• and
• programming in the memory, wherein execution of the programming by the processor configures the system to perform functions, including functions to:
• track, via the sensing circuit, the pattern of fingerprint ridges of the finger skin surface on the input surface;
• generate a fingerprint image having the tracked pattern of fingerprint ridges;
• extract fingerprint features from the fingerprint image;
• authorize the user to utilize the eyewear device based on the extracted fingerprint features by comparing the extracted fingerprint features against a database of captured fingerprint templates of multiple users to find a matching captured fingerprint template and authorizing the user to utilize the eyewear device in response to finding the matching captured fingerprint template, wherein each of the captured fingerprint templates corresponds to an account of a respective registered user of the eyewear device, the account of the respective registered user including at least one application access control for a respective application executed on the eyewear device, the at least one application access control to enable, disable, or restrict access to the respective application, the respective application including at least one of a chat application, a web browser, a navigation application, or an augmented reality application;
• receive a gesture input on the fingerprint sensor;
• display content on the image display;
• and
• manipulate the displayed content on the image display to control the respective application.