Keep your finger completely still
Trial 1
Rotate the dial until the tone precisely aligns with your heartbeat.
Where did you primarily feel your heartbeat?
Thank you for your participation.
Choose your available days and preferred check-in windows.
We'll confirm your device supports the task. For multi-lens phones, cover the lens closest to the flashlight.
A simulated heartbeat plays below. Rotate the dial to move the tone earlier or later until it lands on each beat.
Rotate the dial to align the tone with the beats
Setup is complete. Your check-in schedule has been saved. Your first session begins now.