Waterproof Heart Rate Sports Smartwatch
$49.99
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Strap material: silicone two-color strap Size Host::43*37.5*13.5mm Other operations: single touch, lift the wrist screen Battery : Polymer lithium ion battery Battery capacity: 170 mAh Standby time: 7-10 days Charging method: USB magnetic charging cable Charging time: about 2 hours
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