Charlotte Edwards, Digital Technology and Science Reporter 10 Mar 2021, 11:41 Updated: 10 Mar 2021, 13:32 YOUR smart speaker could one day monitor your heartbeat as you go about your daily business at home. US scientists have been working on a smart speaker system that could give your Amazon Alexa or Google Home the ability to spot irregular heartbeats. 2 Researchers created a prototype of the device that could be integrated into other smart speakersCredit: Mark Stone/University of Washington Smart speakers could become contactless heart rate monitors with the AI-powered system. Researchers designed a prototype that sends out sound waves we can't hear to a person sitting nearby.