How the palm scan works
The scan uses photoplethysmography: light reflected from your skin changes a tiny amount with each heartbeat, and a phone camera can pick that change up from an open palm.
Open your palm to the camera
Hold your open palm facing the camera, about a hand's width away. Ordinary video, no flash and no contact.
Hold still for 30 seconds
The capture runs for 30 seconds. With every heartbeat, a little more blood reaches the skin and its colour shifts very slightly. The camera sees that shift even though you cannot.
Read your estimate
The colour signal is turned into a pulse trace and an approximate heart rate, on your phone. Nothing is uploaded and no frames are kept.
What it reads
Heart rate, breathing rate, blood oxygen and heart rate variability, as approximate wellness estimates from a 30-second palm scan.
What it needs
A phone or laptop with a camera, a browser that can open it, and steady light. No app install, no account, no wearable.
What it keeps
Nothing, unless you choose to save a reading. Camera frames are processed in memory and discarded.
What it is not
A medical device. The values are estimates for curiosity and general wellness, not for diagnosis or treatment decisions.
MoniVitals is for everyday general wellness and curiosity. It is not a medical device and is not intended to diagnose, treat, cure, prevent, or monitor any disease or condition. If you have any health concern, please talk to a qualified professional.