Watches
I never saw the point of them. I don’t see the problem with analog or digital watches. Everything is regressed to a tiny square of a screen, that you barely look at. I just find it as an unnecessary distraction.
Light Bulbs
I work in retail and I stock these things all of the time. We have light bulbs, that are smart now because why? They’re stuffed with wireless functionality, just so you can simply change a color or maybe dim it through phone. More unnecessary apps, more unnecessary functions just for cheap attraction.
Kitchen Appliances
I’m bundling them all here.
There is nothing you’re gaining an advantage of, when slapping a screen on any appliance and relying on some unsupported app on your phone for basic functions.
I’d actually add that one of the biggest uses for so many “unnecessary” devices is opening up ability/convenience to people with various disabilities. Practically every worthless “as seen on TV” gadget has a niche use for someone. Jar openers help arthritis. Pouring gadgets help people with reduced motor control. Smart bulbs help people who are in pain whenever they get up.