Vitalab records the heart pulse waves from your finger blood flow and pressure waves when pressed against your phone camera. In order for Vitalab to record quality health metrics, there are certain good practices to follow:
- Do not press too hard as the blood flow will be blocked
- Do not press to weakly as the light from the flash will not penetrate the skin enough
- Do not move your finger, wrist or hand during the measurement
- Best to measure while sitting with your phone and/or your hand stabilized
The following examples show good and bad pulse waves. You can check by yourself while measuring.

