Sleep Wearable Form Factor
Compare smart rings, fitness bands, and smartwatches for overnight sleep tracking: comfort, battery habits, and sleep metric depth.
Sport smart wristband
Product details
General specs
Starting from €11.98
Last price update: 9/22/26
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Sport smart wristband Supplier-stated IP67 waterproof rating.
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| Model | SKY2 | B57 | B57 | |||
| Price | €11.98 | €18.30 | €12.49 | €20.62 | €10.62 | €9.80 |
| Seller | Alibaba | Alibaba | Alibaba | Alibaba | Alibaba | Alibaba |
| Update | Oct 11, 2026 | Oct 11, 2026 | Oct 11, 2026 | Oct 11, 2026 | Oct 11, 2026 | Oct 11, 2026 |
| Product Type | smart wristband | Smart Wristband | Smart Watch, Sport Wristband, Fitness Tracker | Sports Watch, Smart Bracelet | Smart Watch | |
| Water Resistance Rating | IP67 | IP68 | Ip67 | |||
| Heart Rate Monitoring | Heart Rate Monitor | Heart Rate | Heart Rate Monitor | Yes | ||
