How viable is it to buy an iphone5 now with the purpose of using it for 3-4 years? I am asking this because the iphone 5 does not have NFC and a fingerprint reader. There are also a lot of rumors about new iphones and apple switching to bigger screens. Possibly with new resolutions making the 4" screen obsolete. Furthermore the overall consensus on macrumors and just about every other tech site is that 4" is too small. Then there are android devices with 4.5"+ screens with 720p and 1080p displays with the latest CPUs and 2gb of ram, making the 1.3ghz dual core look fairly weak. Will it be able to run ios 7,8 or 9? Finally there is still no jailbreak for the iphone 5 and it might never ever come at all. It seems to me that the iphone 5 does not have a lot of longevity. Especially not as much as the iphone 4.