Microwear L9 New 2019 ECG + PPG Smart Watch (link in the description) - YouTube
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Microwear L9 Review: specifications, price, features - Priceboon.com
$32.46 (Free or Cheap Shipping) Microwear L9 1.3" IPS Touch Screen Bluetooth V4.0 Smart Watch (L9, Black Silicone Band) at m.FastTech.com - FastTech Mobile
$32.46 (Free or Cheap Shipping) Microwear L9 1.3" IPS Touch Screen Bluetooth V4.0 Smart Watch (L9, Blue Silicone Band) at m.FastTech.com - FastTech Mobile
Microwear L9 Full Round Touch Screen Stainless Steel Bezel ECG Heart Rate O2 IP68 Facebook Display Business Smart Watch