Smartphones
We spend a large part of our days on these phones, and they contain a large proportion of our lives: pictures, messages, dates, and important files. We need them to work well. They do have an expiration date, as you’ll be aware of if you’re coming up to an update and things start glitching on you.
Generally, a smartphone will work well for 3 years, after which it will start doing annoying things like turning off at the worst possible moment or refusing to update an app. If your phone has a non-removable battery then this can be even worse.