Keeping a phone for five years isn't something I'd want considering the rate of performance improvement. A five year old iPhone would be an iPhone 5. The improv

Keeping a phone for five years isn't something I'd want considering the rate of performance improvement. A five year old iPhone would be an iPhone 5. The improvements in CPU/GPU since then are fairly astounding. Going from an A6 dual-core at 1.3GHz to an A11 six-core at 2.39GHz is just nuts. One is 32nm, the other 10nm. Smartphones are the one area in computing that seem to still be having huge jumps in performance compared to desktop/laptop computers.