Not sure why you say “even iPhones” as this kind of high-end tech is likely among the most difficult to manufacture outside of China. But even iPhones are starting to get manufactured in India, and you also have other smartphones being manufactured in Vietnam (I believe this include the new Pixel).

Trump’s China tariffs have already forced many companies to move to Vietnam/India/Mexico/etc. The few remaining are likely hoping Biden will win since he said he would end Trump’s China tariffs.