What Oura does

Sleep stages and a daily readiness score.
Heart rate, HRV and temperature trends.
Activity tracking.
Runs on a paid Oura Membership.

Source: Oura .

Ring or watch?

A ring is lighter and better for sleep. A watch has a screen, notifications and workout controls. If you lean toward a watch like I do, compare in Whoop vs Oura .

Not medical advice. Talk to a doctor about your own health.

More guides on the Smart Rings hub .