Tim knew everyone would upgrade anyway, so they did the iphone 6, the worst iphone ever, no, i'm not saying it is worse than 5s, but in comparision to what other iphones were compared to their predecessor, this iphone is just ********.
Almost every new iphone were 2X faster then it's predecessor, iphone 5 was almost 3 times faster than 4s actually (geekbench 2 i5: ~1600, i4s: ~600)
But not the iPhone 6, it is only 25% faster than the 5s.
OK, so you think "well, the 5s is pretty fast..we don't need a faster.." BAAAANG! you actually need, i agree that 5s is pretty fast, but evolution can't stop, and when Android L come out and the first flagship 64 bit devices with 3.5 ghz octa-core and 4 GB of RAM appear you will see what is performance (yes, i know androd is pretty unefficient with its resources, but they will be much faster than i6)
Then you think, ok, we can't get everything, A8 is 20 nm, it's pretty efficient! 50% more efficient they say!! BAAAAAANG!!! it's not that great! going from 28 nm to 20 nm gives you a theorical gain of 96% (!!!!!!!) of efficienty, so you say "it mean nothing" well, did you remember that i said almost every new iphone was 2x faster than before? yes, they were, but their battery life were the same or a bit better, just like the i6 (which isn't nearly as fast as 2x faster)
Lets see some specs for the 4.7" model:
Wifi browsing: 10h -> 11h (+10%)
3G browsing: 8h -> 10h (+25%)
LTE browsing: 10h -> 10h (+0 %, i don't believe it can get 10h on LTE anyway)
music: 40h -> 50h (+25%, music is played with screen turned off, it has a bigger battery and more efficient processor, should have got better results)
3G calling: 10h -> 14h (+40%, good)
video: 10h -> 11h (+10%)
Ok, so the iPhone 6 hasn't got a significant upgrade on performance and in battery life. but it can get worse:
1 GB of RAM!!!!!!!!!!
yeeees, lets hope the i6 Plus gets 2GB, but in the 4.7" it's pretty much has the same as the i5 got in 2012, it means that apps can't be designed to be more powerful and that every time you multitask between more than 5 huge apps you will need to wait to refresh again (if you have facebook, twitter, whatsapp, instagram all open and you are watching a 8 min HD video on youtube, when you get back to facebook...surprise!!! iOS killed it because it had no enough RAM)
AAAAAAND i said nothing about SAFARI, so, forget about having more than 10 tabs opened and going to youtube watch stuff (or even other app like facebook), when you came back you will need to wait everything refresh.