2024 EKG+PPG+PPT+HRV Monitor Elektrokardiogramm Smartwatches IP68 Wasserdicht For Android IOS. PPG sensor chip ： SFH2201. Waterproof ： waterproof ip68. heart rate/blood pressure ： Green light PPG. Charging mode: Magnetic suction charging line (protect) ： USB 2.0.
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