Sleep Wearable Form Factor
Compare smart rings, fitness bands, and smartwatches for overnight sleep tracking: comfort, battery habits, and sleep metric depth.
MIRO R1E Smart Ring
Product details
General specs
- Brand: MIRO
- Model: R1E
- Depth: 3 inches
- Width: 3 inches
- Height: 1.2 inches
- Stated battery life: 10 days
Starting from €36.18
Last price update: 11/7/26
MIRO R1E smart ring for fitness, sleep, stress, and heart-rate tracking, with ECG and iOS and Android compatibility.
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| Brand | MIRO | Generic Logic, Inc. | Secofy | Milavan | Generic Logic, Inc. | Generic Logic, Inc. |
| Color |
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| Price | €36.18 | €67.85 | €49.75 | €90.47 | €67.85 | €120.78 |
| Seller | Newegg | Newegg | Retailer | Retailer | Newegg | Newegg |
| Update | Nov 13, 2026 | Nov 13, 2026 | Jun 24, 2026 | May 20, 2026 | Nov 13, 2026 | Nov 13, 2026 |
| Size | 7 | #7 | Size 8 | 8 | Size 9 | 7 |
| Part Number | R1E-BK7 | 525687598942 | 525687598959 | 831599614978 | ||
| Battery Life | 10 days | 5 to 7 days, Charging time: 1.5 hours, Includes charging case | 3–5 d | 5–7 days | ||
| Product Type | Smart ring | Smart ring | Smart health-tracking ring | Smart ring | ||
