Here are my thoughts on the iPhone 6 / 6 Plus
Size: I think this is a good thing. I’ve thought that 4 displays are passe. They can be an option, but there ought to have been bigger phones from Apple, like back in 2012 or something. Like the fact that they have a 4.7 and a 5.5. Personally, I think 5.5 is too big for a phone, too bad for the pocket.
Rear Camera: If I am not wrong, there is hardly any change, may be the sensor perhaps? . iPhone cameras have always been good, so no complaints there. I personally don’t believe more pixels translates into better images.
Front Camera: Apparently the front camera lets more light in or something. Selfie lovers will like this. Should be good for FaceTime as well.
Processor: The electronics bit goes above my head, but from what I hear, this is a solid generational upgrade.
Storage: I love this part. a 128GB option is pretty damn cool.
Battery: Though Apple claims improvements, they’ve gone for a thinner design. To me this means the battery output will remain pretty much the same. Not very good.
OS: Love the fact that there are widgets( notification panel only, though) and the possibility of using a non-stock key board. These are nice things to have, things that Android has long had, and were missed on iOS.
Overall: I think these are solid phones. They’re already a huge success