Heart Rate Waterproof Smart Band X9 - Black
Product Description:
- Heart Rate Waterproof Smart Band X9 - Black.
- Battery capacity: 60 MAH.
- Wait Time: 300 hours.
- Weight: Net weight: about 23g.
- Silicone strap: length 245 mm.
- Display: 0.96 inch OLED.
- Heart rate: High Progress Huajing Sensor.
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