E300 Laser Therapy Smartwatch | HR EKG ECG SPO2 Blood pressure cold laser light therapy

Check it out on AliExpress:
s.click.aliexp...
...and here's where I talk about EKG/ECG in layman's terms:
• MorePro ECG (EKG) V19 ...
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My E88 Smartwatch review:
• E88 Smartwatch | Best ...