Free FlashLight - LED Light

Free Flashlight is free, simple flashlight app with super bright LED light, and can measure blood pressure, heart rate, SpO2 by camera LED light.

Flashlight features:

► Small size

► Free

► The brightest, fastest, and most handy LED flashlight!

► The Flashlight takes full advantage of the LED light!

► Most elegant design and the fastest startup

► Health check by camera LED light

► Blood pressure measurement by flashlight

► Heart rate measurement by flashlight

► SpO2 measurement by flashlight

With the flashlight as a light source, put your finger lightly on the camera,then 4Free can capture the pulse of the blood capillary.

Collected by a photoelectric pulse wave signal stability, 4Free Health could get heart rate, blood pressure, blood lipids, blood oxygen and other physical parameters of the pulse wave analysis.