> The average American now holds onto their smartphone for 29 months, according to a recent survey by Reviews.org, and that cycle is getting longer. The average was around 22 months in 2016.

As someone who makes enough money to buy a new phone every year if I wanted, I typically upgrade my phone (iPhone for what it's worth) every 4 years. My experience is that this is about as long as it takes for enough new features to accumulate to make me excited about an upgrade. By the end of this 4 year period, my phones are in a sufficiently good state to be sold, or passed on to a family member.

The idea that a typical person is expected to upgrade their phone every 2 years or so is almost incomprehensible to me.