I have a Garmin watch. It sends data to my iPhone Health App. I can prove that the data is wrong, simply because I don’t run 50k runs and definitely not at midnight either, as Garmin’s data shows it. So I ask Apple. They explain that they get the data from Garmin and post it as is in the Apple Health app. That sounds plausible to me and the Apple guy spends at least half an hour on the phone with me going through all possible options to make double sure that it’s not the Apple Health App that screws up somehow. So I trust Apple’s answer that Garmin’s data is faulty. Apple did what was reasonably possible to make sure they weren’t wrong. So I ask Garmin, and they say ‘no, no, we do send the correct data to your Apple device’. But they didn’t even check, the simply recite a standard helpdesk answer. It took that helpdesk person 5 seconds to copy and paste an answer. They clearly don’t care, and don’t bother to help a longtime Garmin customer. Garmin helpdesk sucks, big time! And as a result, Garmin is is a lousy company that you cannot trust as a consumer. Buy something else, this is crap, no matter what you think of their hardware.