A fantastic tool... or a mind-capturing monster.
It's your choice.
My smartphone stays in my pocket until I need one of its functions.
I make less than 3-4 calls a month, but use the phone two dozen times a day for paying bills, looking for traffic jams, checking the weather, looking for an answer to a question (at least 3-4 times a day,) taking a picture, listening to music, or reading a book.
It's a tool. Like any tool, it can be misused in the wrong hands.