I found this stat a little hard to believe so I looked up what appears to be the source—it’s 81% of iPhone owners who own a smart watch https://www.statista.com/chart/31973/likelihood-of-iphone-us...

It’s hard to find a source of how many iPhone owners specifically also own a smartwatch, but in the US it seems like 35% might be a decent estimate of smartwatch ownership, so it’d be more in the realm of ~28% of iPhone owners also having an Apple Watch.

True, it did seem a bit unbelievable. Either way, if you look around, Apple Watch is worn by all walks of life and just doesn't have the dorky vibe HNers might insist it has.

100% of iPhone users also use the App Store. Anyone who owns a Mac will tell you that's not due to immense satisfaction or competitive zeal, though.