It's probably old news by now but everyone could agree that smartphones revolutionized the way we carry on with our daily lives. Aside from making calls, video chatting, or text messaging, with millions of apps available, the variety of ways you could use your smartphone is virtually endless. Here are a few things it can do that may surprise you.
1. Measure your heart rate
Health buffs will get a kick out of this. A free app that will measure your heart rate using only your smartphone!
Instant Heart Rate for iOS and Android uses your phone's camera and flash to monitor your pulse. Just place your index finger on the camera and the app will automatically measure your heart rate by detecting color changes on the fingertip. It is amazingly simple!
It is quite accurate too. Based on our tests, the results are comparable to the Apple Watch's built-in heart rate monitor.