[elektronjunge]

>While it's easy to say "it's more compelling to do stuff on a phone than it is to do it on a watch, so you'll naturally use the phone more", that rather makes me wonder why I would bother buying the watch, especially when you actually need the phone as well.

While this is true, no body is browsing the web or watching a video on their watch. People are doing quick checks of stocks, the weather, firing off a text message on their watches. The use cases overlap significantly but smart watches fill the niche of "I don't want to pull my phone out to check the time/if I have texts."