[ev1]

A Pixel 4a or 5a is $200-400 and works fine with Graphene. Don't get anything below 4a in terms of age if that is your plan.

Also, they have back hardware fingerprint reader instead of in-screen with the 6/6 Pro which has been orders of magnitude more responsive, at least for me. I routinely have issues with the in-screen readers.

[throwaway54313]

My concern with getting a pixel less than 6 is that the phone would only be supported for a year or two by google which means I'd have to get a new phone or have firmware that is not receiving security patches.

[ev1]

Wait, is that not what Graphene is for?

[throwaway54313]

My limited understanding is that smart phones also have firmware that is distributed by the manufacturer that also requires security updates. So grapheneos takes care of the operating system, but google would need to provide the firmware updates. I think this is one of the reasons why the graphene docs recommend a pixel 6/6a, as they have an unusually (for android) long support life from google - 5 years or so.