If you’re tired of wearable fitness trackers fighting for space on your wrist, it might not be a problem in the near future: researchers say they can reliably measure your heart and breathing rates just by looking at data from a smartphone sitting in your pocket or bag.
Researchers at MIT are working on a project called BioPhone that derives these biological signals from your smartphone’s accelerometer, which they say can capture the small movements of your body that result from the beating of your heart and rising and falling of your chest. A paper on the work was presented at a conference in August.
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