Throwing the Apple fanboi label around is so 2001 
Like I wrote before, I donāt own a smart/sports watch, neither from Apple nor anyone else. However, my wife has one (I married a nerd) and my dad has one (fall detection and emergency button).
Apple sells something like 40 million Apple Watches each year and have >1 billion iOS users. Most of these people donāt have a strong opinion on any of this.
Really? I neither have an Apple Watch nor any Garmin product, just a Wahoo Elemnt Bolt, a Polar heart rate strap and a Wahoo speed sensor. What should I do?
No, seriously, I think there are fewer and fewer features that make Garmin stand out, especially once you consider the fact that you can run apps on the Apple Watch to get e. g. recovery metrics. Maybe Garmin does a better job, but how much better? What about next year, how quickly can Apple catch up vs. Garmin innovate? Garmin isnāt just up against Apple, but Apple plus the entire app ecosystem. Moreover, letās be charitable and say that developing easy-to-use UIs hasnāt been Garminās strong suit in the past.
All of this sounds like I want Garmin to fail, quite the contrary. When Wahoo came unto the scene, they made their head units easier to use. When it comes to competition, they have to figure out how to go about it. Iām curious what they will do.
I think Garmin executives are much more worried than you are and have been for several years. They know Apple Watch sales have been eating into the size of their addressable market for several years, and most features can be added by a simple software update. People at Garmin are not dumb. They for sure donāt want to end up like Blackberry. Other products are impacted as well, gadgets like their emergency satellite beacons have been commoditized to some degree if you are on the latest iPhone.
@dcrainmaker has dropped hints several times that the people at Garmin know. AFAIK Ray also rents out his consultancy skills and they just have to listen to his reviews of watchOS and the Apple Watch du jour.
I donāt think Garmin has shown their hand yet, but If I had to bet people at Garmin are very concerned and know they cannot and should not compete symmetrically with Apple. I want them to survive, because competition and niche products are a good thing. And I am super excited to see what they have in store 
Thatās the problem, those arenāt two separate markets, though: smart watches are a subset of sport tracking watching, though: any smartwatch can do fitness tracking. Only if you go towards the extreme ends (e. g. triathlons), then regular smart watches might not have the battery life you need.
The difference, I guess, is that Garmin has plenty of other products, many of which are beyond Appleās scope (e. g. maritime and aeronautic navigation). Just read @WombleHunterās post to see how easy it is to get squeezed out. If I had a smartwatch, I could listen to podcasts, music, pay with them, place calls, etc.
Yes, indeed, there is an app for that. Is that the one you use? (Iām also asking for a friend with a son who has type 1 diabetes.)
I wish there was more competition in the smart watch market. But wear OS seems to be a rounding error in the smart watch sales numbers.