Compare up to three models from one category. Keep the purpose and the source beside the numbers.
A gesture controller for glasses and computers
Keep in mind Real-world false triggers and exact device compatibility are the tests that matter. It lacks payments and vibration, and shipping fees are collected after the campaign. Core features currently have no subscription planned.
Sleep, recovery and daily activity trends
Keep in mind Native US and UK ring prices were not verified; membership prices for those regions were verified.
Published specifications and documented constraints. See the full comparison below for prices and sources.
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| Smart ringsAdd a model |  |  |
|---|---|---|
| Prices · all markets | $249 USD≈ €223 EURECB 2026-10-12International · Historical campaign price 1 offer records & sources$249 USD≈ €223 EURECB 2026-10-12 International · Historical campaign price Historical campaign priceKiWear Historical Super Early Bird: one ring, charging case, USB-C cable, phone stand and manual Current reward availability and final checkout total not confirmed.Check merchant offer ↗Price source ↗ Checked 2026-10-12 | €265.30 EUR≈ $297 USDECB 2026-10-12EU · Store price · Listed 1 offer records & sources€265.30 EUR≈ $297 USDECB 2026-10-12 EU · Store price ListedSilver; ring size unselected; LT delivery Official LT/EUR store lists a discounted ring price of €265.30 (regular reference €379). Manufacturer metadata adds €15 LT shipping. Size-specific stock, expiry and final checkout total are unverified.Price source ↗ Checked 2026-10-12 |
| Designed for | A gesture controller for glasses and computers ↗ | Sleep, recovery and daily activity trends ↗ |
| Tracking | Not verified | Sleep stages, heart rate, overnight HRV and SpO2, temperature trends, activity, stress and recovery insights ↗ |
| Sensors | HR, SpO2, sleep and activity ↗ | Green/infrared PPG, red/infrared blood-oxygen LEDs, digital temperature sensor and accelerometer ↗ |
| Battery / power | 3-5 days typical or about 20 hours continuous (manufacturer claim) ↗ | Typically 5-8 days; about 20-80 minutes recharge ↗ |
| Battery context | Not verified | Manufacturer estimate; ring size, features, battery age and use dependent ↗ |
| Water / dust rating | Not verified | 100 m; manufacturer excludes diving ↗ |
| Connection & compatibility | Up to 8 Bluetooth devices; 2 active simultaneously ↗ | Bluetooth LE; Oura app requires iOS 16+ or Android 11+ with Google Play services and phone Bluetooth 5.0 support ↗ |
| Material | Not verified | Titanium inner and outer surfaces; finish-dependent PVD or DLC coating ↗ |
| Fit & sizing | Not verified | Use Oura Ring 4 sizing kit; Ring 5 sizing kit differs ↗ |
| Weight | Not verified | 3.3-5.2 g depending on ring size ↗ |
| Subscription | Not verified | Membership for detailed insights: US $5.99/month or $69.99/year; EU €5.99/month or €69.99/year; UK £5.99/month or £69.99/year; first month free for eligible new members ↗ |
| Ring width | Not verified | Not verified |
| Thickness | Approx. 3mm ↗ | Not verified |
| Materials | Zirconia ceramic outside, epoxy resin inside ↗ | Not verified |
| Controls | Air Mouse, swipes, pinches, taps and customizable gestures ↗ | Not verified |
| Payments & haptics | No NFC payments; no vibration alert ↗ | Not verified |
| Availability | Funded campaign ended October 7, 2026. Reward schedule points to late November; actual shipping not independently confirmed. Late November 2026. | Official Ring 4 store and support pages remain available. A current EUR storefront offer was verified; US/UK ring prices could not be verified in this geo-specific session. |
| Important context |
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| Editorial pick & release | #2 · Upcoming Smart ringsExpected: Late November 2026Original Kickstarter reward plan | #4 · Our Top 10 Smart ringsReleased: Oct 15, 2024US retail availability directly reported by the retailer |
| Evidence | Manufacturer source Checked 2026-10-12 | Manufacturer source Checked 2026-10-12 |
Battery claims use different conditions and are not a controlled benchmark. “Not verified” is an evidence gap, not a missing feature. Prices are dated regional snapshots. Deposits, bundles and historical launch prices are labelled. Brightness measurement methods and battery workloads vary by manufacturer.
