[Crystallize]

Quote:

Originally Posted by Mauzen I like how this refers to some app as the nonexistent iphone 5s heart rate monitor, instead of calling it as it is, or at least saying "hear rate monitor app for iphones" BTW the camera method is pretty accurate. Theres not much magic involved, it requires nothing more than a simple FFT (or even simpler methods) for the brightness of the camera pictures to get the correct heart rate with a maximum tolerance of the camera's fps ratio (typically +-1/1800 bpm). In case light situation (and the app itself) isnt too bad there are no factors that could cause this method to show a too fast or too slow heart rate.

I didn't say it's impossible but the guy that I quoted was.He said that phones doesn't have "this technology" so I linked him an article which says that they does without using any 3rd party application.