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Casio "Pro Trek" Outdoor Heart-Rate Monitor GPS Sports Watch (Model WSD-F21HR-BKAGU) (BLACK) - Walmart.com
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Casio unveils Pro Trek WSD-F30, a rugged smartwatch that lasts up to 30 days on a charge | VentureBeat
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Amazon.com: SEMILU Nylon Magnet Charging Cable Compatible with CASIO GSW-H1000,Pro Trek Touchscreen Smart Watch WSD-F30,Wwsd-F21,SD-F20,WSD-F10 Charger : Cell Phones & Accessories
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Amazon.com: Nylon Braided Magnet Charging Cable for Gshock GSW H1000 and Protrek Smartwatch Casio WSD-F21HR,WSD-F30,WSD-F20,WSD-F10 : Cell Phones & Accessories
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