If you feel the need to resize your photos to around 18mp equivalent, the app called "Big Photo" does a superb job of resizing! I realize that a lot of you are probably not photographers and really don't push the limits of your iPhone with photography, so I maybe spinning my wheels here because I feel that a lot of y'all probably don't care the least. If that's the case, then I just won't share anymore of my tips. Anyway, here is a photo that I took with my iPhone 6s Plus and resized it to an 18 megapixel equivalent and it still holds its resolution quite well. I see that y'all are talking about the noise reduction being aggressive in the phone this time around, I'm not sure that's what that is, I'm thinking that it's the tiny optics unable to fully and completely resolve the out of focus background data and therefore it probably renders it into a mushy looking image.
Here is the photo.
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