What happens when a phone runs out of storage and pictures are taken? I am unsure of which iphone I need-64gb or 128gb. I mainly need storage space for photos and videos and I dont think 64gb would be enough. Someone has said that due to iCloud drive a 64gb would however be sufficient but I am unsure of this. When my memory is full will it allow me to carry on taking photos and videos and store straight to iCloud or will I get the usual notice saying there is not enough storage space?
iCloud storage price : http://support.apple.com/kb/HT5879?viewlocale=en_US&amp;locale=en_US

So it depends if you have a good network connection for download what you need when you want (photos with iCloud, musics with spotify...) or if you want all your photos, all your iWork documents and all your stuff on your iPhone all the time. 

It depends if you take a lot of videos, if you download a lot of big games from the App Store... 

In fact, it depends of your money ^^