I've been participating. I noticed that when I'm doing a workout my Watch"s heart rate monitor might drop to 65 bpm from 120, for example, then recover on another reading. Does this mean that the Watch isn't always accurate?
Thank you for participating! And that's exactly what we're measuring—how accurate is the Watch, and in what circumstances does it make errors? The anecdotal evidence is very conflicting, which is why we're comparing the AW to a few different clinical gold standards to get hard metrics.
