Apple gives a standard of three years for its iPhones, subject to change depending on your usage of course.
Though Apple estimates an average lifespan of three years for their iPhones, a lot of people have reported a decline in performance after only two years of use.
However, some users have reported keeping their iPhones for up to five years with a few trips to the repair shops for new batteries, screens and other parts.
Can An iPhone Last 5 Years?
How long your iPhone lasts depends on how carefully you treat and what tasks you subject your device to. Constantly dropping your phone, misuse of battery, using the phone while charging will significantly reduce the lifespan of your iPhone, and indeed any other phone, even android.
Overall though, you can expect a regular iPhone to last you about two and three years. The lifespan extends significantly and becomes more enjoyable, with fewer trips to repairs, if you treat your iPhone right and keep it rightly maintained.