Instant Heart Rate for iPhone App Sees Your Heartbeat

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.

About the author

Chris Maxcer

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I've been writing about the tech industry since the birth of the email newsletter, and I still remember the clacking Mac keyboards from high school -- Apple's seed-planting strategy at work. I'm a big fan of elegant gear and great tech, but there's something to be said for turning it all off -- or most of it -- to go outside. Online I like to call out cool stuff on Wicked Cool Bite and blog with my buddies at Man Makes Fire. To catch me, take a "firstnamelastname" guess at the url of this site.