Upgrading an M4 Pro Mac mini's storage for half the price

I completely quit buying Apple devices all togehter, but I still occasionally check their website. The SSD upgrade prices are ridiculous and funny, especially since I keep meeting people that are convinced that Apples SSDs are somehow magically better than my 60 EUR Samsung M.2 and the price is hence justified.

The upgrade prices - 13" MacBook Air: 256GB to 512GB -> 256GB for 250 EUR

- 14" MacBook Pro: 512GB to 1TB -> 512GB for 250 EUR

So the Air upgrade is twice the price for what is - as far as I was able to figure out - the same hardware?

Double check the SoCs. The base model MacBook Air has a slower GPU than the base model MacBook Pro and the upgraded MacBook Air. When shopping for Apple products, you need to compare every number on the spec page individually because Apple is scared of model numbers.

For a while, some MacBooks also had slower disks because some capacities used one NAND chip while others used two. I believe they stopped doing that for their latest models, though. That kind of fuckery means you need to look up benchmarks for each individual model, because the performance differences aren't clear from the product description.