I am completely stumped. I can not think of a single thing. The only thing that comes to mind are little brats or those poop-machines that people make.
A cell-phone with a specification more advanced than Android 5.1. I have only upgraded my phone twice in my life so far and I hate having to do it - if it will allow me to make and receive calls, text, take photographs and surf the internet, that should suffice, and will suffice 99.99% of the time. Unfortunately the model I have is too primitive to allow the NHS app to run, and I may need the NHS in the future to display proof of vaccination in order to get admitted to festivals and so forth. So I think that will be my next purchase.
Things that start with smart. The exception is two smart TV's that do not have a microphone. I hope people are paying attention. Who do you really think smart light bulbs benefit. Why does your vacuum need WIFI? It goes on and on. Today I completely inspect anything I purchase (prior to purchase) to insure it in not capable of receiving and sending digital signals.
And, of course, I don't have a smart phone nor a doorbell that needs a power or battery source. I bought the old-fashioned twist/ring doorbell. It's a hit in the neighborhood.