So, like it says on the tin: I want to try GrapheneOS on my next new-to-me phone, which practically limits me to the Pixel series. And my price point will likely limit me further.

Anybody got thoughts on the Pixel 6a vs Pixel 7, those exact models (e.g. not Pixel 7 Pro etc)?

I currently have an old phone with Snapdragon 845 and 6GB of RAM which still performs well enough under LineageOS with microG to keep me happy.

Fears: that I'll miss the microSD slot; that the 6a's battery life might suck even on GrapheneOS; that the battery on a Pixel might be hard to replace.

Nice-to-haves: a camera that works well in low light.

Thoughts?