[jrmg]

This seems incredibly pessimistic to me. Do you really not expect things to last for over ten years?

In my experience most electronic things - and especially things that are simple and solid with no wear and tear like an AirTag - easily last 10 years. I’d expect an AirTag to work for, at least, decades.

[dmd]

My amplifier and speakers date from the 70s.

[avree]

Do they run a proprietary Apple software, and have NFC and UWB inside them?

[Spivak]

When the software is fixed we're back to thinking of the object as a single piece of hardware. My Gamecube and Xbox 360 have been working for (nearly) 20 years now.

Unless there's a known failure mode in these devices that gets worn down over time you should probably expect them to outlive you. The worst you'll probably get is corrosion from the AA batteries in the pack.

[avree]

The software isn't fixed.