hi guys ! im the one who posted the question , and finally i created my account. (wilber1 you're right)
So thanks for the recommendations.
I think the SE is not a choice . it will feel like buying the same phone (not internally but externally)
i forgot to mention that the 7 will be 32g , whereas the 6s 64g .
im not going with the 16g again.no way.
I know that the 7 is better overall but i hear many people sayng that is not such a big improvement from the 6s , thats why i asked if 150 more is worth it.
wish i could wait for the 8 . That was my original intention but now im using and old motorola brick haha..
I am holing onto 6s and take a pass on 7. As Tartrus said, there is not a huge difference between 6s and 7. In fact, this is the first time I did not upgrade the iphone. I have been upgrading for every iteration of iPhone since the first iteration.
Having said that, you do not have the 6s, but 5s, and if your next candidate is a 6s or a 7, and plan to hang on to it for at least 2 years, I would recommend going for the 7, if you could tolerate the $150 difference. the 7 in 2 years is much more future proof than the 6s.
BTW, Sherry_B's recommendation has to be taken seriously. You may not like the size of the 7, which is the same as the 6s, and the SE has essentially the same internal as the 6s. I went back and forth between the 6s and the 7 6 times until I realized I do have a deteriorating eyesight