My 3 years old iPhone mini 13 is still very fast, reliable, and I love every part of the phone. It's such an amazing phone that functions well. The only thing got worsened is the battery, now at 87% even though I always charge it to 80-85%, now I have to charge it to 100% to use through the day. I still have extra power (like 30%) for a whole day. Replacing the battery isn't a problem. If Apple does support it like other models, it should last another 4-5 years more. I have no plan to upgrade to anything as I don't see anything comparable on the horizon.