Likely uses pulse transit time and the shape of the pulse wave to infer changes in blood pressure. I wrote a bit about how this works (in the context of Apple Watch's hypertension notifications) here: https://www.empirical.health/blog/apple-watch-blood-pressure...
How does it transform blood speed to pressure? Doesn't it require a different calibration for each person? Your article says something about deep learning, but IIUC it's to detect unusual peaks in one person.
Bloomberg links should be banned.
An explanation of it's features.
https://signalring.com/pages/how-it-works
Is there any technical detail? I don't understand how it works without cuffs or calibration.
Likely uses pulse transit time and the shape of the pulse wave to infer changes in blood pressure. I wrote a bit about how this works (in the context of Apple Watch's hypertension notifications) here: https://www.empirical.health/blog/apple-watch-blood-pressure...
I took a look at your link ...
It measure blood speed instead of pressure?
How does it transform blood speed to pressure? Doesn't it require a different calibration for each person? Your article says something about deep learning, but IIUC it's to detect unusual peaks in one person.