Admittedly, I envy you. I still use an iPhone, which I justify for work and the camera. But I know it's a problematic item, and I am very aware that it is bad for me and was designed and optimized to interfere constantly by interjecting nonsense into the brain. It's a very tough habit to break.
When I really think about it, the camera is likely what I'd miss most. That's the true convenience offered by a smartphone.
I imagine if someone released a new dumb phone that happened to have an amazing camera onboard, it would generate substantial interest.