Sleep Wearable Form Factor
Compare smart rings, fitness bands, and smartwatches for overnight sleep tracking: comfort, battery habits, and sleep metric depth.
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ISKOVI W03 Bluetooth Calling and Smart Notifications
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Paybay Y7
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RifePhi G51 1.83" TFT touch screen with HD resolution
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Apple MR8W3LW/A Carbon neutral design
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Matast P76 Bluetooth call and message alerts
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Tensky 38a18813-be86-462e-a4d5-e710042ffc4c Make Call and Message Notifications
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| Brand | ISKOVI | Paybay | RifePhi | Apple | Matast | Tensky |
| Model | W03 | Y7 | G51 | MR8W3LW/A | P76 | 38a18813-be86-462e-a4d5-e710042ffc4c |
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| Price | €27.13 | €9.04 | €45.23 | €301.44 | €180.94 | €44.32 |
| Seller | Retailer | Retailer | Retailer | Retailer | Retailer | Retailer |
| Update | Mar 21, 2026 | May 8, 2026 | Mar 21, 2026 | Mar 21, 2026 | Mar 21, 2026 | May 19, 2026 |
| batteries | 1 Lithium Polymer batteries required. | 1 9V batteries required. (included) | 1 A batteries required. (included) | 1 Lithium Ion batteries required. (included) | 1 P76 batteries required. (included) | 1 Nonstandard Battery batteries required. (included) |
| Item Weight | 2.39 ounces | 3.52 ounces | 6.4 ounces | 1.34 ounces | 3.2 ounces | 6.4 ounces |
| Package Dimensions | 5.67 x 3.7 x 0.71 inches | 10.71 x 3.46 x 0.67 inches | 10.87 x 3.54 x 0.75 inches | 6.73 x 3.27 x 0.79 inches | 11.34 x 3.74 x 0.75 inches | |
| Standing Screen Display Size | 1.91 Inches | 1.83 Inches | 1.83 Inches | 1.94 Inches | 1.85 Inches | |
| Country of Origin | Hong Kong | China | China | China | China | |
| Memory Storage Capacity | 64 MB | 128 MB | 512 MB | |||
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