Certainly not. I use mine as a hotspot and generally forget to take it with me or to even check for messages.
My wife is as glued to her smartphone as I am to my computer. She won't let it go, no matter where she is, but there's no point in arguing with her about it, she'll just tell me that "I'm also addicted to my computer", and that'll shut me up.
I have this vision of the future whereby people will be unable to avoid bumping into other people as they are walking around, because all of them are gazing at the phones without looking where they are going. Come to think of it, it seems to be happening already...
When I see people on their phones all the time I often wonder if I am missing something because I hardly use mine. I am always asking myself what are they using their phones for that I do not use mine for. I do not play games on my phone or computer. People have everything in their phones, what do they do when they lost the phone with all of their information in it. I do not feel comfortable putting all of that information in a phone.
Viewed from my window this morning: man standing right in the middle of the road gazing intently at his phone. While I accept that the road where I live is not the busiest in the land, this did not appear to be the best idea.
I am not addicted to my phone, but I work from home so I use it a lot. I check the weather, tides, TV programs, email. I send sms and messages , make calls, take photos, download recipes, download books, check the time, use the alarm and keep my shopping list on it. I have various lists on it that I often use. I download podcasts and videos which I watch on it. I have music downloads on my phone. This is not to mention the apps for learning a language, weight loss, running, sixpack and others. I am not addicted, but I do use it a lot.