Sometimes I will use something and realize I’ve owned it forever. It’s a nice change in our throwaway reality. I think my personal record is a bicycle multi-tool I got for one of my first bikes, ~25 years ago. Still have it, still use it. When it comes to electronic devices I have a Panasonic mini Hi-Fi from ~2005. Never felt like changing it.
What’s your record?
My Victorinox Swiss army knife. Got it close to 30 years ago, and I still carry it every day, using it for dozens of different things.
I’ve replaced the scales once, and the blade was ruined by a dodgy knife sharpener, but it still holds an edge.