Disclosed herein is a device for continuous physiological monitoring as well as systems and methods for interpreting and sharing data from such a device. The device may include a wearable strap that automatically and continually determines a heart rate of a user and provides continuous heart rate data. In addition, the device may include a communication system for transmitting and sharing the continuous heart rate data subject to a privacy switch operable by the user that can restrict such communication. For example, the privacy switch may include a shared setting where continuous heart rate data is available to a shared data repository, and a private setting where continuous heart rate data is not shared by the user.
