I have - I can happily go without it most of the time. The watch has cellular, and notifications cover most of what I need. Responding to things can wait till

I have - I can happily go without it most of the time. The watch has cellular, and notifications cover most of what I need. Responding to things can wait till I'm back at a computer. If it's urgent, the watch can make calls, and if you're using a bluetooth headset, it's indistinguishable from a phone. I don't travel without the phone, though, it is great having easy, fast access to everything (maps, browser, tickets, etc). The watch can do most of that but it's clunkier, and for me it's not a hill worth dying on. So I do think you can achieve what you're looking for - rely less on your smartphone while still being 24/7 reachable. It is definitely worth looking into.