Sleep Wearable Form Factor
Compare smart rings, fitness bands, and smartwatches for overnight sleep tracking: comfort, battery habits, and sleep metric depth.
| This model | Recommendations | |||||
|---|---|---|---|---|---|---|
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allentian K59 1.43-inch display
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allentian K55 Heart-rate monitoring supported
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allentian Mk60 Bluetooth calling is stated.
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allentian K57pro 1.96-inch screen
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allentian K52 Bluetooth calling is supported.
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allentian Mk60 Bluetooth calling is supported.
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| Brand | allentian | allentian | allentian | allentian | allentian | allentian |
| Model | K59 | K55 | Mk60 | K57pro | K52 | Mk60 |
| Price | €76.85 | €66.13 | €67.91 | €111.70 | €83.10 | €67.91 |
| Seller | Newegg | Newegg | Newegg | Newegg | Newegg | Newegg |
| Update | Nov 3, 2026 | Nov 3, 2026 | Nov 3, 2026 | Nov 3, 2026 | Nov 3, 2026 | Nov 3, 2026 |
| Size | Medium | Medium | Medium | Medium | Medium | Medium |
| Model Name | K59 | K55 | Mk60 | K57pro | K52 | Mk60 |
| Part Number | 5237387484992 | 5160164258394 | 5465101195618 | 748992973157Black | 724194725332Black | 5465101195617 |
| Product Type | Smartwatch | smartwatch | Smart watch | Smartwatch | Smart watch | Smart watch |
| Compatibility | Android / iOS | Android / iOS | Android / IOS | Android / iOS | Android / IOS | Android / IOS |
| Bluetooth Calling | Supported | Bluetooth calling is stated. | Supported | Supported | ||