Most are underestimating the upgrades in the 5s, and are not giving credit to some serious improvements and innovations. Most people are focused on the screen, and without a bigger screen it won't be seen as innovative or even new. That is short sighted. The processor is the first 64-bit of its type, leap frogging ARM and partners who are only in prototype mode. The M7 chip opens up a lot of possibilities for a hot market for devices like the jawbone up and fitbit. The camera should be quite a sizeable image quality and low light performance upgrade, but we will see after testing. The finger print reader is quite innovative and opens up a lot of corporate acceptance for security reasons. Losing a device should present less risk if the use of the reader can be enforced by admins. I want to see the battery life for sure, and it better be longer, quite a bit longer.
Overall, I think the 5s is a nice upgrade. Many will disagree and say they don't innovate. I disagree. When you combine iOS 7 and the hardware, I think there are quite a few improvements in there. Maybe not a lot more than a Samsung announcement, but on par for sure. Those that say Apple does not innovate, but claim Samsung and others do, are just haters. The sales results will tell.
How much can we really expect going forward an on annual upgrade path in terms of annual innovation? Innovation rarely comes linear in my experience. It comes in spurts. I think the 5s is targeted at 4 and 4s owners, not necessarily 5 owners. To me the only two things not on par and better that other phones out there are the screen size and the scratch factor for the aluminum. Those two need addressed in the 6, and I agree it would have been great if they would have addressed this this round. Everything else to me make this the best phone on the market, still.