This story is part of, CNET's complete coverage from and about Apple's annual developers conference.
As part of its newsoftware, Apple's wearable device, the Apple Watch, will automatically detect when you start washing your hands. It will then time how long you scrub in front of the sink. The device does this by listening for the sounds of running water and bubbling suds.
And for those who are a little impatient, the smartwatch will provide gentle prompts to continue. After all, keeping up good hygiene is always the right call.
The company announced the news at Monday's keynote start for its. Here's .