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Amazon.com: HAYLOU LS02 SmartWatch(1.4", 260mAh, Bluetooth 5.0, IP68)-Fitness Tracker App(Heart Rate, Pedometer, Calorie, Sleep, Multi-Sports Tracking, Smart Notifications), iOS & Android Compatible
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Xiaomi Haylou Solar: Not solar-powered, but a smartwatch that costs just ~US$20 - NotebookCheck.net News
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Amazon.com: Haylou LS05 Smart Watch with 30 Day Battery Life, Biometric Sensors for Heart Rate Monitor, Sleep & Fitness Tracking, IPX68 Water Resistant, Metal Body w/ Touch Display, Bluetooth 5.0 : Electronics
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Haylou RS4 LS12 Smart Watch with 1.78-Inch Color AMOLED Screen Bluetooth5.1 IP68 Waterproof Sleep/Heart Rate/Blood Oxygen Monitor 12 Sport Modes Message Compatible with Android iOS - Walmart.com
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