Smart rings, side by side
OSAWALLA vs Oura vs Ultrahuman vs RingConn.
Four smart rings, one table, no adjectives. Every number below comes from each manufacturer’s own published specifications (checked October 2026). Where a brand updates its specs, we update the table — nothing on this page is an opinion, and no brand is described except by its own numbers.
| OSAWALLA This pageSIGNATURE · SLIM · CERAMIC | OuraRING 4 | UltrahumanRING AIR | RingConnGEN 2 | |
|---|---|---|---|---|
| Price (from) | $49.99 · Signature / Ceramic $69.99 | $349.99 | $349 | $299 |
| Subscription | None — all app features included | $5.99/mo membership | None | None |
| Battery (advertised) | 5–7 days | Up to 8 days | Up to 9 days | 10–12 days |
| Material | Stainless steel (brushed / polished), Ceramic | Titanium | Titanium | Titanium |
| Water resistance | IP68/5ATM | 100 m water-resistant | IPX8 | IP68 |
| Size range (US) | 6–13 · sizing kit $0 | 4–13 | 5–14 | 6–14 |
| Heart Rate Monitoring | Yes | Yes | Yes | Yes |
| HRV Monitoring | Yes | Yes | Yes | Yes |
| Blood Oxygen (SpO2) | Yes | Yes | Yes | Yes |
| Sleep Tracking | Yes | Yes | Yes | Yes |
| Recovery Insights | Yes | Yes | Yes | Yes |
| Sports Modes | Yes | Yes | Yes | Yes |
| Women's Health | Yes | Yes | Yes | Yes |
| App Ecosystem | OWRing（Ceramic）/ Da Rings （Signature） | Oura App | Ultrahuman App | RingConn App |
| Apple Health Integration | YES | YES | YES | YES |
| Android Compatibility | Yes | Yes | Yes | Yes |
| First-year cost, ring + app* | $49.99 /$69.99 | $418.99 | $349 | $299 |
* First-year cost = advertised starting price plus 12 months of any required subscription ($349.99 + 12 × $5.99 = $418.99 for Oura). Brands without a subscription show the ring price only.
Core tracking features advertised by all four brands as of October 2026. Feature naming and scoring methods differ by brand; each app presents them in its own way.
How to use this page
Three numbers worth weighing first.
Where OSAWALLA sits
Same tracking category, different price structure.
OSAWALLA rings track the same core signals the brands above track — sleep stages, heart rate, HRV, SpO₂ and recovery. Two differences are visible in the table alone: the starting price ($49.99), and no membership fee at any tier. What the table cannot show you is fit and finish — that is what the 30-day return window is for.
FAQ
Frequently asked questions
Oura charges a membership of $5.99 per month for full access to its app features. OSAWALLA, Ultrahuman and RingConn do not require a subscription; app features are included with the one-time ring purchase.
OSAWALLA rings start at $69.99 (Slim series), with Signature and Ceramic at $99.99. RingConn Gen 2 lists at $299, and both Oura Ring 4 and Ultrahuman Ring AIR list at $349.
RingConn Gen 2 advertises the longest battery in this comparison at 10–12 days. Ultrahuman Ring AIR advertises up to 9 days, Oura Ring 4 up to 8 days, and OSAWALLA rings 5–7 days.
OSAWALLA and RingConn rings are rated IP68. Oura Ring 4 is water-resistant to 100 meters. Ultrahuman Ring AIR is rated IPX8. Exact submersion guidance differs by brand — check each manufacturer’s care instructions before swimming.
Oura Ring 4 is offered in US sizes 4–13, Ultrahuman Ring AIR in 5–14, RingConn Gen 2 in 6–14, and OSAWALLA rings in 6–14. A sizing kit is the safest way to choose for any brand — order the OSAWALLA kit here.
Specifications are taken from each manufacturer’s own published product pages and support documentation, checked October 2026. Prices are advertised list prices and change frequently. OSAWALLA products are wellness devices, not medical devices; the same distinction applies to the other rings in this comparison. Nothing on this page is sponsored, and no ranking is implied — the table exists so you can weigh the numbers yourself.
Decided?
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Order a sizing kit first, or go straight to the ring if you already know your size.