yellingdog·قبل 11 شهرًا·discussI would expect an extremely infrequent heart rate sample rate at idle. I believe the current-gen watches only sample every 10 minutes unless activity is detected.
yellingdog·قبل 3 سنوات·discussThey do, it's free, and their developer website is shockingly nice. https://developer.usps.com/api/18