$270 shipped. Allows you to continuously record ECG (actual ECG, not just HR), HRV etc.
https://photos.app.goo.gl/eLWiMXxGUAixPaLE6
See
https://fourthfrontier.com/...YKgmYc8aAuKOEALw_wcB
For features etc.
https://photos.app.goo.gl/eLWiMXxGUAixPaLE6
See
https://fourthfrontier.com/...YKgmYc8aAuKOEALw_wcB
For features etc.