a Garmin Optical Armband – like WHOOP. With Garmin finally pushing out the Elevate Gen 4 optical heart rate sensor into the latest Venu then the chances of Garmin using the technology in novel ways is increased. Let’s take a look at the prospect of Garmin making a screen-free, optical heart rate armband, ostensibly it would be for the upper Z8TS9.

does garmin hrm pro work with apple watch