If you just make a phone call, use WeChat, Alipay or something, and don't play games, it's absolutely no problem to use 10 years.
Of course, it is recommended to change the battery every 3-4 years. Apple has this battery replacement service. As long as the battery is ok, Apple's mobile phone is still very durable and basically won't break down.
If you want to keep your mobile phone smooth, you need to install less software, just install 3-5 commonly used ones, and don't install the rest.
If all this is acceptable to you, keep using it. At least my Apple 6plus has been used for more than five years without problems. 2065438+changed the battery once at the end of 2008, and now it still has 98% battery performance, and the performance of the mobile phone is extremely high.