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.
Medium smartwatch with health and activity monitoring, Bluetooth calling, and Android and iOS compatibility. It is described as waterproof, but no rating is specified.
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
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allentian P45
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allentian P58 Bluetooth calling is supported
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allentian Zw39
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allentian Et440 Bluetooth connectivity and Bluetooth calling
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allentian K55 Heart-rate monitoring supported
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allentian T21 Measures heart rate and blood pressure.
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| Brand | allentian | allentian | allentian | allentian | allentian | allentian |
| Model | P45 | P58 | Zw39 | Et440 | K55 | T21 |
| Price | €53.18 | €49.57 | €34.25 | €96.44 | €66.70 | €59.49 |
| Seller | Newegg | Newegg | Newegg | Newegg | Newegg | Newegg |
| Update | Nov 12, 2026 | Nov 12, 2026 | Nov 12, 2026 | Nov 12, 2026 | Nov 12, 2026 | Nov 12, 2026 |
| Size | Medium | Medium | Medium | Medium | Medium | Medium |
| Calling | Bluetooth calling | Bluetooth calling | Bluetooth calling | |||
| Model Name | P45 | P58 | Zw39 | Et440 | K55 | T21 |
| Part Number | 5028030322112 | 776243948556Silver | 5081777833463 | 5084367773303 | 5160164258394 | 5157592253254 |
| Product Type | Smartwatch | Smartwatch | Smartwatch | Smart watch | smartwatch | Smartwatch |
| Compatibility | Android and iOS | Android and iOS | Android and iOS | Android / IOS | Android / iOS | Android and iOS |
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