Sleep Wearable Form Factor
Compare smart rings, fitness bands, and smartwatches for overnight sleep tracking: comfort, battery habits, and sleep metric depth.
BIEMHA Smart Ring
Product details
General specs
- Brand: BIEMHA
Starting from €98.25
Last price update: 6/27/26
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| Brand | BIEMHA | Nyweey | Free Shark | Domhong | Warchody | Kuinha |
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| Price | €98.25 | €53.57 | €44.65 | €44.65 | €41.06 | €15.18 |
| Seller | Retailer | Retailer | Retailer | Retailer | Retailer | Retailer |
| Update | May 29, 2026 | Apr 29, 2026 | Apr 27, 2026 | May 20, 2026 | May 29, 2026 | Mar 21, 2026 |
| Size | 8 | 7# | 7 | 09# | 9 | 9 |
| Battery Life | 2-3 days | 5 days, 30 days with charging case | 4+ days (full charge) | 5-7 days per charge, 30+ days with charging case | 7 days | |
| Compatibility | iOS, Android | iOS, Android | iOS, Android | iOS, Android | Android 6.0 or above, iOS 11.0 or higher | |
| Waterproof Rating | IP68 | IP68 | IP68 | 5 ATM | ||
When this device makes sense
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