The app on Samsung Galaxy Watch periodically reminds its users to wash hands and ensures they are washing for at least 20 seconds.
In an official release Samsung said, “The WHO has recommended frequent washing of hands amongst a few other measures to halt the spread of COVID-19. Hand Wash is considered effective only when it lasts for a full 20 seconds, according to healthcare professionals.”
It further added, “The ‘Hand Wash’ app allows users to track their daily wash trends to build healthy habits over a period.”
It is worth noting that the app also allows its users to intuitively track their daily wash routine. The ‘Hand Wash’ app tracks the time, moment the user starts the wash sequence, and provides feedback after 25 seconds of the cycle.