Sleep Wearable Form Factor
Compare smart rings, fitness bands, and smartwatches for overnight sleep tracking: comfort, battery habits, and sleep metric depth.
B03B-R06 Smart Ring, Health Monitor, Heart Rate Sleep Monitor IP68 Waterproof Multi-Sport Modes
Product details
General specs
- Model: B03B-R06
Starting from €11.26
Last price update: 10/8/26
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| Brand | Kuinha | ZBNMY | KYUHJU | ZBNMY | Free Shark | |
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| Price | €11.26 | €15.16 | €31.24 | €36.85 | €38.36 | €44.62 |
| Seller | AliExpress | Retailer | Retailer | Retailer | Retailer | Retailer |
| Update | Sep 26, 2026 | Mar 21, 2026 | Mar 21, 2026 | May 29, 2026 | Apr 17, 2026 | Apr 27, 2026 |
| Waterproof Rating | IP68 | IP68 | IP68 daily waterproof | IP68 | IP68 | |
| Size | 9 | 7 | 7 | 7 | ||
| Battery Life | 7 days | 3-5 days normal use, 7-10 days standby | 5 days, 30 days with charging case | |||
| Compatibility | Android 6.0 or above, iOS 11.0 or higher | iOS, Android | Android, iOS | iOS, Android | iOS, Android | |
| Design Features | Lightweight, Durable, Waterproof | Lightweight, Durable, Waterproof | Ultra-thin, Lightweight, Comfortable Fit | |||
| Subscription Fee | No | No | None | |||
