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.
A smartwatch described as a sports watch, compatible with Android and iOS. Advertised features include a female physiological cycle reminder, true blood oxygen functionality, GPS and double star positioning.
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allentian K37 Smart Watch Compatible with Android and iOS
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allentian K37 Compatible with Android and iOS
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allentian K37 Compatible with Android and iOS
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allentian K37 Black 1.32-inch listed size
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allentian Mt39 Bluetooth calling is supported.
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allentian ET381 Compatible with Android and iOS
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| Brand | allentian | allentian | allentian | allentian | allentian | allentian |
| Model | K37 Smart Watch | K37 | K37 | K37 | Mt39 | ET381 |
| Price | €167.82 | €167.82 | €167.82 | €49.88 | €86.18 | €107.95 |
| Seller | Newegg | Newegg | Newegg | Newegg | Newegg | Newegg |
| Update | Nov 13, 2026 | Nov 13, 2026 | Nov 13, 2026 | Nov 13, 2026 | Nov 13, 2026 | Nov 13, 2026 |
| Size | Medium | Medium | Medium | Medium | Medium | |
| Model Name | K37 Smart Watch | K37 | K37 | K37 | Mt39 | ET381 |
| Part Number | 693973919278Green | 693973919278Grey | 693973919278Black | C16101TUL=TBD0602798901A | 752343437086Green | 5362835421266 |
| Positioning | Advertised as having GPS and double star positioning. | GPS and double star positioning | GPS double-star positioning | |||
| Product Type | Smartwatch | Smart watch | Smartwatch | smartwatch | Smart watch | Smartwatch |
| Compatibility | Android / iOS | Android and iOS | Android / iOS | |||
| Physiological cycle reminder | Advertised as having a female physiological cycle reminder. | Advertised as a female physiological cycle reminder | Yes | |||
| Device Compatibility | Android / IOS | Android/iOS compatibility | Android / iOS | |||
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