I have a "smart" weight scale. It still connects via Bluetooth just fine (meaning: I see it connect on my phone) but because the app is no longer in development, it's essentially useless. A perfect piece of hardware, "dead" because the company behind it stopped supporting it. (I'm exaggerating a bit; it shows the weight on its display, but the app used to store data for up to 5 users to keep track over time. I miss that!) It's infuriating that we allow this to happen with all the wasteful electronics already lying around. We deserve better.