The iPhone 4 had severely constrained availability when it launched, managing to sell "only" 1.7 millions over the first week-end (only 700k more than the 3GS)
The 4S on the other hand, had plenty of units available even if Apple launched in a lot more countries at the same time.
It sold 4 millions over the first week-end, more than twice as the iPhone 4. This was possible because of the fact that the form factor didn't change so it was easy for Apple to produce millions of them quickly (with higher margins).
The iPhone 5, just like the 4 was a new form factor which was hard to manufacture at the beginning of the production line, leading to limited availability. The iPhone 5 only sold 1 million more units over the first week-end compared to the 4S.
People underestimate the appeal of the "S" models.
"Tried and tested and even better than before" beats "Fancy all new design and futuristic features" in the minds of many.
I think that Apple could sell a lot of iPhone 5S especially if they have a lot of supply available for launch. Something like 8-10 millions over the first week-end.
The 4S on the other hand, had plenty of units available even if Apple launched in a lot more countries at the same time.
It sold 4 millions over the first week-end, more than twice as the iPhone 4. This was possible because of the fact that the form factor didn't change so it was easy for Apple to produce millions of them quickly (with higher margins).
The iPhone 5, just like the 4 was a new form factor which was hard to manufacture at the beginning of the production line, leading to limited availability. The iPhone 5 only sold 1 million more units over the first week-end compared to the 4S.
People underestimate the appeal of the "S" models.
"Tried and tested and even better than before" beats "Fancy all new design and futuristic features" in the minds of many.
I think that Apple could sell a lot of iPhone 5S especially if they have a lot of supply available for launch. Something like 8-10 millions over the first week-end.