Quantified Self

The Quantified Self movement began in 2007 with the idea that tracking your own biometric data could lead to insights about your health that would otherwise be invisible. Two decades later, "quantified self" is mainstream — most people who own a smartwatch or smart ring are practicing it without using the term.

The promise: continuous data on sleep, activity, HRV, body composition, and more — at consumer prices. The reality: the data is only useful if you act on it, and most people generate more biometric data than they read.

Wellness Devices is, in a sense, a marketplace for the hardware layer of the quantified self: the wearables, monitors, and devices that produce the data that, used well, actually improves outcomes.