Sleep Wearable Form Factor
Compare smart rings, fitness bands, and smartwatches for overnight sleep tracking: comfort, battery habits, and sleep metric depth.
If you are interested in more details, you can find full information on the seller's page.
Ceramic RFID smart ring with a rewritable T5577 chip operating at 125 kHz.
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RFID Smart Ring Black Ceramic construction
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RFID Smart Ring, Black, Size 12# Black T5577 chip
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hecere T5577
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Smart Ring, Size 7, White White Ceramic design
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11 Smart Ring Health Tracker Silver Size 11
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Generic Logic, Inc. R02 Black ceramic Water-resistance rating: 5ATM
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| Brand | Generic Logic, Inc. | Generic Logic, Inc. | hecere | Generic Logic, Inc. | Generic Logic, Inc. | Generic Logic, Inc. |
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| Price | €40.70 | €40.70 | €26.96 | €88.20 | €54.28 | €94.99 |
| Seller | Newegg | Newegg | Retailer | Newegg | Newegg | Newegg |
| Update | Nov 13, 2026 | Nov 13, 2026 | Mar 21, 2026 | Nov 13, 2026 | Nov 13, 2026 | Nov 13, 2026 |
| Size | 10# | 12# | 7 | 11 | 8# | |
| Part Number | 144180195467 | 144180195450 | 424259686448 | 377622282672 | 552190743408 | |
| Product Type | RFID smart ring | RFID smart ring | Smart ring | Smart ring health tracker | Smart ring | |
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