Just under four years for the first.Once in two years, three years?
No idea as I haven't performed a statistically meaningful survey. Why does it matter? People vary. Some replace more often than others.Would I be right in assuming that people upgrade their smartphones much faster than they do tablets?
's latest and greatest on release date, they are far cheaper with the next model comes outI am using an iPad 3. Since, I did not upgrade the OS beyond its native iOS 5; haven't felt the subtle pressure from Apple to upgrade hardware; with their one-way tickets to OS sluggishness.