It almost goes without saying that modern Apple devices are tough to repair or upgrade, but the Touch Bar-equipped MacBook Pro might just take the cake. An iFixit teardown of the 13-inch model reveals that there are even fewer replaceable parts than before. The solid-state drive is embedded on the motherboard (even the non-Touch Bar model has a removable card), to begin with -- whatever capacity you choose is what you'll have for the life of the system. The Touch Bar, as you might guess, isn't exactly easy to replace. And while having a fingerprint reader in the power button is very convenient for sign-ins and purchases, that also makes repairs complicated. The button is tied to a chip on the motherboard (since it needs a secure element), so you can't just slip in an aftermarket component and call it a day.