I would also buy a 5 inch phone and want one very soon.
It may be your opinion that 4 inches is the right size, but that is YOUR opinion. Do not presume that that applies to everyone.
Android is passing Apple in many ways in this regard. Some are even leaving for the bigger screens. I would think that adding a larger screen phone would sell well.
No flaming. Everyone has their own thoughts...
I think that, generally speaking:
- Most people do want a larger screen, or at least would not dismiss one outright, sight unseen, if made aware of the option.
- Most of the people (perhaps approaching all of them) who really do believe they don't want a larger screen in reality simply don't want a larger device. If their current phone were replaced by an identically sized device tonight while they slept, except that the impostor device had a larger screen (and therefore a smaller bezel) they would perhaps not even notice right away, and would in all liklihood be delighted once they did.
- Most people don't want a screen with a lower pixel density, or at the very least would not dismiss any device without such a feature outright, sight unseen, if made aware of alternative options.
- Most of the people (perhaps approaching all of them) who really do believe they want a screen with a lower pixel density simply don't want smaller icons, fonts, and UI elements. If their current phone were replaced by an identically sized device tonight while they slept, except that the impostor device has a higher pixel density screen (and identically sized UI as before) they would perhaps not even notice right away, and be delighted once they did.
So, indeed, the fact that Apple grew the iPhone's size to provide the new larger screen for the iPhone 5 probably put some people off, even though it also got thinner and lighter. And I agree that if that trend continues it's not a good thing. Articles like the one that is the topic of this thread touch a nerve because they sort of suggest the trend may or could continue. In addition, in this case we are talking about sacrificing pixel density too. Doubly bad.
The current iPhone 5 is 4.87" x 2.31". For a moment let's suppose that a 5" x 2.5" phone is really as big any anyone who has "grown up" with the iPhone from the beginning is willing to tolerate. So just slightly larger than what we have today. Still very manageable, and noticeably smaller than a Galaxy S3 at 5.38" x 2.78" or, certainly, a Note II at 5.95" x 3.16".
Now, let's consider the current state of the art phone screen: 5" diagonal, 1920x1080. Such a screen has a pixel density of 440 PPI and its dimensions are 4.36" × 2.45".
So put simply, if Apple can deliver the device at the size and screen size I mention above, then pretty much everyone would be happy, assuming battery life does not suffer vs. the outgoing model (we'll assume advancements allow for this).
I personally think that device will arrive sooner than later, although probably not for the iPhone 6, and maybe not the 7. In the meantime, though, we'll get incrementally more pixels and smaller bezels, but I don't think the phone will get bigger than what I outline above, and I don't think pixel density will get lower than it is today.