Measuring heart rate variability
Taking measurements with your smartphone camera
Taking measurements with your Apple Watch
How to take accurate heart rate variability measurements
Taking measurements with your Samsung Watch and Google Pixel Watch
What the liquid means and how it reflects your body’s current state
How we interpret your heart rate variability metrics
About your heart rate variability metrics
Frequency domain scores of your Heart rate variability
What normal ranges and measurement standards we use to interpret your heart rate variability
How do I make sense of my measurement results?