[Wowfunhappy]

I can't answer your question OP, but I'd really like to try going smartwatch-only some day.

The things I really need a phone for are directions, making calls, listening to music/podcasts, and occasionally replying to short messages. I should be able to do all of that from a smartwatch. Anything more in-depth can and should wait until I'm at a computer and ready to focus.

I would need the right product to come along, though, and that might never happen.

[onceiwasthere]

Not exactly what you're talking about, but I recently got a cellular Apple Watch and I've been trying to have only that with me as much as possible. I can do all the things on your list from it and my distraction plummets whenever I leave my phone at home and just have the watch. But I still maintain the bare minimum of connectivity and conveniences like music/podcasts/calls (with airpods)/texts/gps. Just not having the ability to open a web browser or reddit while having those less distracting essentials is the perfect balance for me.