> fully debugged

And here I am each morning having to manually enforce sync multiple times to have my fucking Garmin watch sleep data show up in my iPhone Garmin app. I love this watch (Instinct 2) but it’s far from bug free even in its most fundamental functions like data sync

I had a phone I liked that was stuck on Android 7 and had increasing sync issues until I got a phone that can run current Android. iPhone should be better with support, but also, Apple is hostile to third-party apps that use Bluetooth, so I'm hesitant to say this is Garmin's fault and not Apple's.

Thats the app, not the watch. On my Android phone, I think it's runnig afoul of OS power saving features.