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 medium sports watch with Bluetooth calling, a pedometer, heart rate, blood pressure, and sleep monitoring, and compatibility with Android and iOS.
| This item | Recommendations | |||||
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allentian C21pro Bluetooth calling is supported.
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allentian C21 Supports Android and iOS
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allentian C20pro Compatible with Android and iOS
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Medium Smart Bracelet / Sports Watch 1.39-inch round display
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Medium Smart Watch Bluetooth calling is supported.
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Medium Smart Watch Bluetooth calling is supported.
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| Brand | allentian | allentian | allentian | allentian | allentian | allentian |
| Model | C21pro | C21 | C20pro | |||
| Price | €68.81 | €115.27 | €60.76 | €45.57 | €25.47 | €25.47 |
| 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 |
| Pedometer | Included | Pedometer | Included | |||
| Model Name | C21pro | C21 | C20pro | |||
| Part Number | 776624732431Black | 641277286062Black | 661740078878Black | 719253449357Black | 674998787475Black | 674998787475Grey |
| Product Type | sports watch | smart watch | Smart watch | Smart bracelet / sports watch | Smart watch | smart watch |
| Compatibility | Android and iOS | Android / IOS | Android / IOS | Android / IOS | Android and iOS | |
| Sleep Monitoring | Supported | Supported | Supported | |||
| Bluetooth Calling | Supported | Supported | Supported | Supported | Supported | |
| Heart Rate Monitoring | Supported | Supported | Supported | Supported | ||
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