What this product is
Oura Ring 5 is a device sold by Oura.
From the maker's page. See the maker's page ↗ We don't repeat the maker's health claims.
What it measures
The maker says it tracks sleep, heart rate, HRV, temperature trends, blood oxygen, respiration and movement, using LEDs and an accelerometer. ouraring.com ↗
How well it works in independent tests
A reviewer saw no change in data versus the Ring 4 and judged results broadly consistent, but did not give accuracy numbers. androidpolice.com ↗
FDA status
A reviewer says the maker states the ring is not a medical device. bgr.com ↗
Subscription
A reviewer says a paid subscription is required; without it only basic daily scores show. androidpolice.com ↗
Battery life
The maker rates battery at up to 6-9 days per charge, depending on size and usage; a reviewer got about a week. bgr.com ↗
What the maker offers
Comes with the ring, a charger and a USB-C cable; sizes 6-13; Silver and Black cost $399, other finishes $499. ouraring.com ↗
Each line rests on a passage quoted word for word from the linked page (hover the link to see it). Accuracy comes only from pages independent of the maker.
About this kind of device
Fitness trackers: watches, bands and rings
Smartwatches and fitness trackers are wrist-worn monitors that people commonly use to count their steps each day.
Main risk: The pages stress that wrist-worn monitors may not count steps as accurately as hip-worn pedometers.
Research stage 2: small studies in people. What it measures and the research →
This is research on this kind of device in general, not proof that this model is accurate or right for you.
Outside reviews
No independent reviews of this product found yet.
This is general information gathered from the sources listed, not medical advice. Talk to your doctor before starting anything new.