Smart Ring
Smart Rings for Sleep & Health Tracking
24/7 health tracking in a featherlight design. Sleep, heart rate, HRV and recovery — no watch, no screen, no subscription.
What it tracks
More insight than a watch, less on your wrist
Wellness device, not a medical device. OSAWALLA rings and the OSAWALLA app are intended for general wellness and fitness use. They do not diagnose, treat, cure or prevent any disease, and readings should not be used for medical decisions. Consult a qualified clinician for any health concern.
Sleep, measured properly
Wake up knowing how you slept.
Worn all night without you noticing it, the ring reads your night from the finger — where pulse and temperature signals are strongest. A typical night looks like this:
Stage splits are estimates, the same as on any wearable. The trend across weeks is the useful signal — the app shows both.
Choose your series
Three rings. One mission.
All three share the same sensor array, but each uses a different app and differs in width, weight, and finish.
Compare
Which ring is right for you?
| Signature | Slim | Ceramic | |
|---|---|---|---|
| Material | Brushed Stainless /Polished Stainless | Polished Stainless | Ceramic |
| Width | 8 mm | 6.5 mm | 8 mm |
| Weight | 3-5 g | 2.5-4 g | 3-5 g |
| Thickness | 2.7 mm | 2.5 mm | 2.6 mm |
| Battery | 5–7 days | 5–7 days | 5–7 days |
| Sizes | US 6–13 | US 6–13 | US 6–10 |
| Waterproof | 5ATM / IP68 | 5ATM / IP68 | 5ATM / IP68 |
| Charging | Magnetic charging / charging case | Magnetic charging / charging case | Magnetic charging / charging case |
| Main controller | Goodix 5331 | Bluetrum AB2056D | Goodix 5331 |
| PPG sensor | HX3918 | HX3918 | HX3918 |
| Bluetooth | BLE 5.3 | BLE 5.2 | BLE 5.2 |
| Health tracking | Heart rate, HRV, SpO₂, stress, sleep, activity, cycle insights, meditation | Heart rate, HRV, SpO₂, stress, sleep, activity, cycle insights | Heart rate, HRV, SpO₂, stress, sleep, activity, cycle insights, AI，meditation |
| Sports modes | 128 standard + 5 GPS-linked modes | 128 standard + 5 GPS-linked modes | 128 standard + 5 GPS-linked modes |
| Apple Health | Apple Health + Strava listed | Apple Health + Strava listed | Apple Health + Strava listed |
| App | Da Rings | OWRing | OWRing |
| Price | $49.99 | $59.99 | $69.99 |
OSAWALLA vs the big names
How we stack up against Oura, Ultrahuman & RingConn
Data only — every figure below is each brand’s own published specification. The full page has the complete table, first-year cost math and sources.
| OSAWALLA | Oura Ring 4 | Ultrahuman Ring AIR | RingConn Gen 2 | |
|---|---|---|---|---|
| Price (from) | $49.99 | $349.99 | $349 | $299 |
| Subscription | None | $5.99/mo | None | None |
| Battery (advertised) | 5–7 days | Up to 8 days | Up to 9 days | 10–12 days |
| Water resistance | IP68 | 100 m | IPX8 | IP68 |
| First-year cost* | $49.99 | $421.88 | $349 | $299 |
* Ring price plus 12 months of any required subscription. Specs from manufacturers’ published pages, October 2026.
The app
Your daily recovery score, at a glance.
Every feature is included in the purchase price — there is no premium tier and no monthly fee.
- Daily readiness score
- Weekly sleep report
- Stress & HRV trends
- iOS & Android
Not sure of your size? Choose “I don’t know my size” and a free sizing kit (US 6–14) ships before your ring — or buy the kit on its own for $6.99. Wear the dummy ring for a full day and the ring you buy will not have to be exchanged.
What owners say
Reviews from verified buyers
"I love it. No subscription fees. It connects easily."
"True to size! Very high quality, I’m obsessed, truly. This ring is by far the best smart ring! What’s not to love? The only downside is I’m cautious wearing it in hot showers. Order yours before they sell out! You…"
"I’m obsessed with this ring! I’ve always wanted an aura ring but didn’t wanna spend that much on top of a subscription. But this ring is perfect! The app is super user friendly, and it measures so many things. It’s…"
Questions before you buy
Not sure about your size? Select “I don’t know my size” when ordering your ring, and we’ll include a complimentary sizing kit with your ring purchase.
You can also purchase a sizing kit separately for $6.99. For the best fit, wear the sizing ring for 24 hours before confirming your size.
Yes — IP68, so showers and pool swims are fine. Avoid hot tubs, saunas and long exposure to salt water, which degrade the seals over time.
5 to 7 days of continuous wear, with a full charge in about an hour on the magnetic charger.
Both. The app needs iOS 10 or later, or Android 5 or later, with Bluetooth 5.0. Pairing guides live in Smart Ring support.
No. Sleep stages, readiness contributors, HRV history and every other view in the app are included with the ring.
Ready to start
Sleep, recovery and strain — no subscription
Not sure? Choose “I don’t know my size” and a free sizing kit ships first — or go straight to the ring if you already know your size.