I’m a big fan of ingenuity, and Azumio’s Instant Heart Rate – Heart Rate Monitor app for iOS is damn cool: When you place your finger on the iPhone’s camera and hold for 15 seconds, the app’s screen will tell you your heart rate. In my testing, it was surprisingly accurate. How does it work its magic?
Your finger changes color slightly as capillaries expand and contract when your heart beats. Under the bright light of the iPhone flash, Azumio’s app becomes a handy tool. Learn more from my review at MacNewsWorld.
