A:AnswerThe man thing is the plus has full 1080p resolution screen and the better battery life. Also one small thing is the plus has is optical stabilization, But the plus does weigh more and is very big in the hand.
http://www.apple.com/iphone/compare/
A:AnswerI know there are some sites that may still carry it. you just have to look for it. I bought mine instore at bestbuy on sunday 1/3/16. that location had some left. and a special promotion with it.