Well, assembly can mean that a pick and place machine is assembling individual capacitors onto a raw circuit board, or it can mean a teenager putting the battery in and putting the battery cover on before packaging it. That’s why “look it up in a dictionary” comments aren’t helpful. We aren’t confused about the word, we are confused what it means in this use because it can have a VERY broad definition.

Pick and place PCB assembly is very different from the final assembly of batteries in terms of who is capturing value and building a reasonable moat. Their sales angle is around European autonomy.

Low wage workers putting batteries in phones is not that, but PCB assembly is much closer to that.

I don't know anything but I thought it's the opposite of that? I thought pick-and-place machines are like fancier 3D printers, and they can be bought and copied anywhere sufficiently advanced, but low-wage assembly workers are organic AGIs that require multi year culture building and prompt engineering know-hows accumulation to be able to achieve and maintain even usable yield rates and cannot be spun up overnight, especially after a workplace was once torn down.

Or am I just spoiled by apparent local regional abundance of cheap roboticists?

Seems much more likely to me that the main board of the phone is assembled in China and the battery and the case, and perhaps the screen are added in Finland. But it would be nice to know for sure.