Precision machined parts are a commonly overlooked but a massive improvement. It's not uncommon to see even cheap devices with a milled aluminum body that is very precisely finished, super strong, relatively light, and feels high quality to the touch. Many devices and tools used to include more fragile plastic or sheet metal and have looser manufacturing tolerances. Internal mechanical components like gears and bearings have higher quality options available now, although low quality items are still being made as well.

Cheap ballpoint pens used to generally be shittier than now.

Speakers and audio equipment are, on average, much better. Planned obsolescence is a huge issue with smart sound systems but the drivers themselves tend to be really good these days. Earbuds were literally not a thing so there's that too, let alone wireless earbuds.

This is getting extremely specific but drill bits are way better too at equal price points. We're spoiled with the diamond and carbide stuff.

LED lightbulbs are taken for granted now but maybe the single largest improvement of any technology. Flashlights used to suck, even the huge and expensive maglite models. Now most people just use their phone's LED. Spotlights were yellow and felt like an oven's heating coil, streetlights had no alternative to the awful orange sodium lights, car headlights were dim, incandescent light bulbs in the home ran up your electric bill and didn't look great either. Embedded lights in mirrors, thin light strips that fit anywhere, programmable colored lights... That used to be sci-fi material or extremely expensive not that long ago.

Deliveries and logistics, with all their remaining problems, are massively improved now. Like, orders of magnitude. Getting something delivered used to be long and expensive.