Price range
€27
– €53
Free Shark Smart Ring with Sleep Monitoring, Step Counting, Heart Rate, Blood Oxygen
This smart ring offers discreet, all-day health monitoring without the bulk of a wrist device. It tracks heart rate, blood oxygen, sleep stages, steps, and calories, with no subscription fees. IP68 waterproof up to 80 meters, it's suitable for swimming and workouts. Compatible with iOS and Android, the ring provides detailed health reports via its app. With a battery life of up to 5 days (extendable to 30 days with a charging case), it seamlessly integrates into daily life.
- 4 offers
- No subscription fee required
- Color: 3 colors
Price spread
~100%
Across listed offers
Customer rating
26 ratings
Available offers (4)
Choose an offer, then open its detail page for seller-specific information.
Offer comparison
Compare prices, availability, and key variant differences in one table.
| Feature | Black | Rose Gold, 8 | Silver, 7 | Silver, 10 |
|---|---|---|---|---|
| Price | €26.64 | €53.27 | €44.40 | €44.40 |
| Updated | Mar 11, 2026 | Apr 1, 2026 | Apr 27, 2026 | — |
| Availability | Available to order | Available to order | Available to order | Available to order |
| Color | Black | Rose Gold | Silver | Silver |
| Size | — | 8 | 7 | 10 |
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|---|---|---|---|---|---|---|
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UouNeaCo R11-Black-013 All-in-One Health Monitoring
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JHYLJSH 2024
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GJKQRJ 7 Gold 24/7 health monitoring and sleep tracking
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Generic R11M Health monitoring with advanced sensors
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Smart Ring Silver
|
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| Brand | Free Shark | UouNeaCo | JHYLJSH | GJKQRJ | Generic | S SECRETTOP |
| Model | Smart Ring | R11-Black-013 | 2024 | 7 | R11M | |
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| Price | €26.64 | €53.28 | €23.97 | €53.27 | €36.41 | €213.15 |
| Seller | Retailer | Retailer | Retailer | Retailer | Retailer | Retailer |
| Update | Mar 21, 2026 | Apr 18, 2026 | Dec 17, 2025 | May 20, 2026 | Mar 21, 2026 | May 7, 2026 |
| batteries | 1 Lithium Polymer batteries required. (included) | 1 AAA batteries required. (included) | 1 9V batteries required. (included) | |||
| Item Weight | 3 Grams | 2.39 ounces | 3.52 ounces | |||
| Country of Origin | China | China | China | |||
| Package Dimensions | 4.05 x 3.11 x 1.22 inches | 2.99 x 2.91 x 1.73 inches | 3.03 x 2.95 x 1.73 inches | |||
| Battery Life | 5-7 days of use, 15 days of standby | 5 days | 3-5 days typical use, 7-10 days standby | |||
| Compatibility | Android 5.1 or above, iOS 8.0 or above | iOS, Android | iOS, Android | |||
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