Lenovo S2 PRO 1.69'' Touch Screen With Heart Rate Blood IP67 Smartwatch | eBay
Global Version Lenovo S2 Pro Smart Watch Sports Bracelet 1.69-inch Screen Bt Fitness Tracker Ip67 Waterproof Heart Rate Monitor - Smart Activity Trackers - AliExpress
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Lenovo S2 Smart Watch Fitness Tracker with Heart Rate Monitor, Blood Oxygen Tracking, Sport Modes, 1.4 Inch Touch Screen Smartwatch Fitness Watch for Women Men Compatible with Android iOS : Amazon.sg: Electronics