Addicted: "physically and mentally dependent on a particular substance, and unable to stop taking it without incurring adverse effects"
Hmmmm...well...I guess I am, sort of... It does have my emails for notices of books in the library, mastercard statements that are due; my app for my food (weight loss), listen to music. News via Twitter, facebook to keep in touch with family and friends. Calendar for all my appointments; contact list with all my phone numbers (sons, daughter, sisters and brothers). Charge cards.
So I guess I would incur adverse effects if I didn't take it with me. I don't use it when I am active taking with others; conversations, check out lines at stores, etc. I can leave it for some time if I am reading, walking (but I use my Apple phone watch for that), talking, sitting and gazing out at nature. Shall I go on? On a positive note: I probably wouldn't use the phone as much if I didn't have help from my daughter.