Additionally, the claimed infringement relates to the fact that it’s reflective pulse oximetry using three or more sensors. Your Garmin and old Apple watch aren’t infringing because they use two sensors. I think the patent in its current state should not have been granted. It would be like patenting the placement of three or more CPU sockets on motherboards that fit in a certain rack size.
Additionally, the claimed infringement relates to the fact that it’s reflective pulse oximetry using three or more sensors. Your Garmin and old Apple watch aren’t infringing because they use two sensors. I think the patent in its current state should not have been granted. It would be like patenting the placement of three or more CPU sockets on motherboards that fit in a certain rack size.