[NewsyHacker]

The problem in the Android world is that the most respected Android version for privacy, GrapheneOS, only runs on Google Pixel phones that all lack SD card slot. Sure, you can choose to buy another phone that has an SD card slot, but that will involve a privacy tradeoff.

[replete]

DivestOS is the next best thing to GrapheneOS. The founder, Tad, has contributed a massive amount to privacy on android, I've used it for a few years. It's based on LineageOS and has similar device support..

[NewsyHacker]

The two projects are not even remotely comparable. DivestOS can’t ensure security features like memory-isolating the modem, because the range of hardware that it supports doesn't have that functionality. It doesn’t run sandboxed Play Services, so one is limited to generally the apps that are on F-Droid.

[eternityforest]

More importantly for average users, there are almost no flagships at all that take SD cards.