Sleep Wearable Form Factor
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allentian C21pro Configuration unspecified Medium Smart Watch
Available offers (4)
Current
Configuration unspecified
Newegg
€68.81
Available to order
Features
- 1.39-inch display
- Listed functions: pedometer, Bluetooth calling, heart-rate measurement, and blood-pressure measurement
- Described as three-proof
- Compatible with Android and iOS
General specs
- Brand: allentian
- Model: C21pro
- Seller: Newegg
- ID: 9SIAEWSKAT8218
- Size: Medium
- Brand: allentian
- Model Name: C21pro
- Part Number: 719091237520Black
- Display Size: 1.39 inches
- Product Type: Smart watch
- Compatibility: Android and iOS
- Listed functions: Pedometer, Bluetooth calling, heart-rate measurement, and blood-pressure measurement
- Outdoor designation: Described as three-proof
- First listed by seller: October 21, 2026
If you are interested in more details, you can find full information on the seller's page.
€68.81
Last price update: 10/21/26
Available to order
Shipping options
Delivery to 
United States
United States
Available
A medium smart watch with a 1.39-inch display, listed functions including pedometer, Bluetooth calling, heart-rate measurement, and blood-pressure measurement, and compatibility with Android and iOS. It is described as three-proof.
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allentian C21pro 1.39-inch display
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| Brand | allentian | allentian | allentian | allentian | allentian | allentian |
| Model | C21pro | C20pro | K57pro | C20 | C20 | K57pro |
| Price | €68.81 | €60.76 | €68.81 | €57.19 | €97.40 | €111.70 |
| 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 | C21pro | C20pro | K57pro | C20 | C20 | K57pro |
| Part Number | 719091237520Black | 661740078878Black | 759248916715Black | 5100578589452 | 672236601559Black | 748992973157Black |
| Product Type | Smart watch | Smart watch | Smart watch | Smart watch | Smart watch | Smartwatch |
| Compatibility | Android and iOS | Android / IOS | Android / IOS | Android / IOS | Android / IOS | Android / iOS |
allentian C21pro 1.39-inch display
€68.81
When this device makes sense
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