> Isn’t Apple potentially under a lot of pressure due to the DRAM prices

Maybe. On the one hand, if there is a strong ceiling to what users are willing/able to pay for a smartphone (might not be true, with all those people making $$ on the stock market), they will have to cut prices.

On the other hand, if one part gets more expensive, premium phones need smaller relative price increases than budget phones. Certainly, if they are willing to accept lower margins, premium product might get more attractive.

Also, iPhones tend to have less RAM than competitors, so this might hit other premium manufacturers harder than Apple.