Yes, the Apple Watch was a fantastic purchase. I started noticing how much (or little) I was active some days. I started walking regularly the day after I got my watch, and it's been a slow build up since then. Obviously it wont' do the work for you, but it's a great tool if you're ready to get started.
I also bought the Sony 1000X-M3 headphones, and they have indeed been a game changer. My work puts me in "war room" situations several times a year, and having noise-cancelling headphones allows me to continue deep work even when there's a crowd of people.