B57 fitness tracker smart watch Waterproof Sport For IOS Android phone Smartwatch Heart Rate Monitor Blood Pressure Functions
![B57 fitness tracker smart watch Waterproof Sport For IOS Android phone Smartwatch Heart Rate Monitor Blood Pressure Functions](http://ae01.alicdn.com/kf/H4d203b9ed0794a4593fe1b87d6f8068eV/B57-fitness-tracker-smart-watch-Waterproof-Sport-For-IOS-Android-phone-Smartwatch-Heart-Rate-Monitor-Blood.jpg_350x350.jpg)
sku: 4000585210440
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$13.18
Shipping from: China
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