Highlight the two complex sentences in the text below.

Are Smart Watches Worth it?

Smart watches have been around for a while now, but I’ve avoided buying one. I was never convinced having one offered any great improvements on simply owning a phone. As far as I was concerned, they would never be able to replace a phone. But were they even supposed to? After speaking to a friend who swears by his smart watch, I decided to give one a go. What did I find? It was more useful than I first anticipated. Or maybe the right word is interesting?