S1 Water-proof sport smart watchRugged from Inside Out! Born for Adventure, No matter where your pursuits take you the S1, will be there every step of the way Worldwide Curved SmartwatchThe ergonomic curved design that pays homage to traditional watches allows the S1 to fit the wrist more closely and provide more accurate data. Latest Wearable ChipThe RTL8763EW is designed for smart wearable devices and supports multiple hardware sensors running in parallel, making a breakthrough
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