Disclosed herein are system, method, and computer program product embodiments for detecting an irregularity in a user's vital signs and alerting of a potential emergency using wearable devices. An embodiment operates by receiving, from a sensor component coupled to a wearable computing device, real-time heart rate information associated with a user wearing the wearable computing device. The system accesses heart rate calibration information associated with a user profile and detects an irregularity based on a comparison between the real-time heart rate information and the heart rate calibration information. Based on the detected irregularity, the system accesses a contact information associated with the user profile and transmits a message based on the contact information.
