Believe it or not, I still have an Iphone 6. With the IOS updates it's still going strong. Though i'll be interested to see what the new Iphones look like & might be tempted to finally upgrade
The only reason I changed form my original iPhone 4 to a iPhone 6 was because the 4 was on it's last leg both with functioning and charging. I have no desire to change from my 6 as it's also still going strong! I just don't get the "upgraditis" like I have with audio equipment. Maybe that's a good thing?
During the recent hot weather my iPhone 5S’s battery swelled up and pushed the screen out of its frame. I took it to local shop Eye Phone, who copied its entire contents onto a nearly new 256GB iPhone 7, fitted a case and screen protector and gave me a new charger and cable...all in about 30 minutes and for less than half the price of a new 32GB unit. All the phones they sell come from leasing companies, handed back after expiration of the contract. There are certain things I do like to spend money on, but phones aren’t one of them so I was quite pleased with this solution.