It seems a lot of comments I've read here and on other sites are about the screen. "It isn't bigger!" is the complaint. So do all those who comment on that realize WHY it isn't bigger, and why it probably won't ever be bigger?
Retina display. That's why. Apple has set the bar high on screen resolution. None of the current top Android or Windows phones have yet matched the dpi of the Retina display on the 4 and 4s. They haven't even matched the total resolution yet.
Galaxy S II? 800x480 with 4.3" or 4.5". Worse resolution and DPI than 4/4s.
Droid Bionic? 960x540 with 4.3". Worse resolution and DPI than 4/4s.
HTC Titan? 800x480 with 4.7". Worse resolution and DPI than 4/4s.
For Apple to make a larger screen iPhone they'd have to do one of two things.
1) Increase the resolution to keep the same dpi of a larger screen. They won't do this because it would cause problems with all the apps already out there. It would fragment the app market for slightly higher resolution 4s apps vs all the other apps. It happened with 3GS -4 transition, but in this case the 4 had double the resolution, so it made it easy to scale up non-retina aware apps. They can't do this with a slightly bigger phone screen. It wouldn't allow for as easy of a transition. This is not the Apple way.
2) Increase the screen size but keep the resolution the same. This loses DPI. Then it would no longer look as sharp as the current Retina display. A lower DPI would lose the "Retina" distinction, too. Don't you think people would complain when the screen looked worse than the previous model? "Hey Apple, it's not retina anymore! LOLZ!"
Apple's bigger screen is called an iPad.
Retina display. That's why. Apple has set the bar high on screen resolution. None of the current top Android or Windows phones have yet matched the dpi of the Retina display on the 4 and 4s. They haven't even matched the total resolution yet.
Galaxy S II? 800x480 with 4.3" or 4.5". Worse resolution and DPI than 4/4s.
Droid Bionic? 960x540 with 4.3". Worse resolution and DPI than 4/4s.
HTC Titan? 800x480 with 4.7". Worse resolution and DPI than 4/4s.
For Apple to make a larger screen iPhone they'd have to do one of two things.
1) Increase the resolution to keep the same dpi of a larger screen. They won't do this because it would cause problems with all the apps already out there. It would fragment the app market for slightly higher resolution 4s apps vs all the other apps. It happened with 3GS -4 transition, but in this case the 4 had double the resolution, so it made it easy to scale up non-retina aware apps. They can't do this with a slightly bigger phone screen. It wouldn't allow for as easy of a transition. This is not the Apple way.
2) Increase the screen size but keep the resolution the same. This loses DPI. Then it would no longer look as sharp as the current Retina display. A lower DPI would lose the "Retina" distinction, too. Don't you think people would complain when the screen looked worse than the previous model? "Hey Apple, it's not retina anymore! LOLZ!"
Apple's bigger screen is called an iPad.