The fact that you, already just use your phone for bare essentials and nothing else. Means, normal smartphones are the best for you. Think of this more like a re-hab pill for addicts :) , normal people dont take rehab meds. This is for people who are facing severe addiction.

I went through that phase several years ago, had to destroy my phone, and went without any phone for 6 months, relied on people to call me only via my computer over VoIP when i was on PC. Picked up a smartphone again once i was finally mentally free.