Can a smart ring track your sleep without a watch?
Short answer
Yes. Rings from Oura and Samsung track sleep, heart rate and recovery for about a week per charge. Oura needs a monthly membership; Samsung's ring needs an Android phone.
Which products can do it?
- Samsung Galaxy RingYes
The Galaxy Ring tracks sleep and health with no subscription.
Good to know: $399; Android only, and a Samsung phone for all AI features. Comparison from Aug 2025.
- RingConn Gen 2 AirYes
The RingConn Gen 2 Air tracks sleep stages, heart rate, breathing rate and HRV with no subscription, for $199.
Good to know: Limited fitness tracking; the reviewer found the inner sensors a little uncomfortable. 2025 review.
- Oura Ring 5Yes
The Oura Ring 5 tracks sleep stages, heart rate, HRV and temperature; BGR rates its sleep analysis among the best.
Good to know: $399-$499 plus $5.99/month for most features. Not a medical device; new blood pressure trends lack independent validation.
Why it matters
Many people don't want to sleep with a smartwatch, and want health tracking that's easy to forget you're wearing.
Not proven yet
How accurate ring sleep stages are compared with a sleep lab; we haven't read an independent study yet.
Guide
Oura Ring vs Samsung Galaxy Ring: the real cost of a smart ringOura charges a monthly membership; Samsung doesn't, but needs Android. What each ring costs over a year, what works with your phone, and what they can't do.How we know (3 sources)
Months-long review of the RingConn Gen 2 Air ($199, no subscription): detailed sleep tracking (REM, heart rate, respiratory rate, HRV), 24/7 vitals, over a week of battery (ten-day rating), 100 m water resistance. Limited fitness tracking; protruding inner sensors are a little uncomfortable.
Read the sourceReview of the Oura Ring 5: much smaller titanium ring, $399 (Black, Silver) to $499 for other finishes, plus $5.99/month membership that unlocks most features, so about $470 in year one. About a week of battery. Sleep and recovery analysis among the best; new blood pressure and breathing trend features have little independent validation and are not diagnostics. Not a medical device.
Read the sourceGalaxy Ring vs Oura Ring 4 (last updated Aug 6, 2025): Galaxy Ring $399 with no subscription but Android only (Samsung phone for all AI features); Oura Ring 4 from $349 plus $5.99/month membership, works with iPhone and Android. Neither does detailed workout tracking on its own.
Read the source