I have this setup and it’s a great vision. Unfortunately I personally find it needless hamstringed:
1) the Watch works great for every single one of my smartphone needs, but you are required to pair it with an iPhone that has a phone plan…even if you keep the iPhone turned off 95% of the time.
2) the AirPods fall out of my head when I smile. I’ve tried the different sizings. For such an expensive gadget, I expect to be able to make them stay in my head without fear of losing them simply because I’m having a nice time.
3) people sometimes report that they can’t hear me very well through the AirPods even if I’m sitting still in a quiet room with no obstructions. This happens regardless of whether the pods are tethered to the Watch, computer, or iPhone.