I talk about my “Keitai”,today.
I use iPhone now. I used smart phone when I was high school student. I think iPhone is useful more than smart phon.
How ever it is very delicate, and broken easy. On the other hand, it could take a picture clearly more than smart phone. I like phone, and I always looking it and always in my hand. It is unhealthy and waste of timeThat is not good. So I make the rule in my self about using phone. It is so difficult for me, but I’ll do my best.