Xiaomi Haylou LS01: A sub ~US$20 smartwatch with IP68 certification, 9 sports modes, 24 hours heart rate monitoring and up to 14 days battery life - NotebookCheck.net News
Haylou Ls01 Global Version 9 Sport Modes Smart Watch Ip68 Waterproof Sleep Management Universal Fashion Bluetooth Smart Band - Smart Watches - AliExpress