The Signal
Sleep Science
Sleep Science articles from The Signal by Sensor Bio.
Devices
Sensor Bio V2
Raw PPG at the wrist
Infrared, red and green light, two photodiodes, an accelerometer and a skin temperature sensor.
Tech specs →The science
Science
The signal behind the score
How Sensor Bio V2 turns light at the wrist into heart rate, HRV and SpO2.
Read the science →Ways to integrate
Data
Start here
Compare integration paths
SDK, API and raw data side by side, so you can pick the one that fits your stack.
See the comparison →