Pulse Check
Your phone camera is a pulse meter
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BPM
Normal resting range
Tap start, then cover the back camera
1
Cover the main (biggest) back lens fully with your fingertip, close to the flash.
2
Best: lay the phone face-down on a table, rest your fingertip lightly on the lens and stay still for 15 seconds.
3
Sit calmly first. Resting is usually 60 to 100.