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.
The CK20S is a fitness watch with a round display. It provides heart rate monitoring and fitness tracking.
Its stated water resistance rating is IP67.
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
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Round-Screen Fitness Smartwatch Heart rate monitoring
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SANDA SANDA CF18 For sport and fitness use
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Round Full-Touch Screen Smartwatch Round full-touch screen
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BRIM V11 Supplier-stated IP67 water resistance rating.
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BRIM Karen M V11 IP67 water resistance rating.
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Round Screen Smart Watch Water resistance rating: IP68
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| Brand | SANDA | BRIM | BRIM | |||
| Model | CK20S | SANDA CF18 | TD28 | V11 | Karen M V11 | K9 |
| Price | KZT 7,835.01 | KZT 9,203.24 | KZT 5,927.51 | KZT 7,977.62 | KZT 7,754.79 | KZT 5,570.97 |
| Seller | Alibaba | Alibaba | Alibaba | Alibaba | Alibaba | Alibaba |
| Update | Nov 13, 2026 | Nov 13, 2026 | Nov 13, 2026 | Nov 13, 2026 | Nov 13, 2026 | Nov 13, 2026 |
| Product Type | Fitness Watch, Smartwatch, Smart Wrist Watches | Smart Watch | Smart watch, Fitness tracker | |||
| Waterproof Rating | IP67 | IP67 | IP67 | IP67 | IP68 | |
| Heart Rate Monitoring | Heart Rate Monitoring | Heart rate monitor | heart rate | |||
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