When comparing GEMINI PDA vs Any unlocked Android smartphone with LineageOS, the Slant community recommends Any unlocked Android smartphone with LineageOS for most people. In the question“What are the best smartphones for GNU/Linux enthusiasts?” Any unlocked Android smartphone with LineageOS is ranked 2nd while GEMINI PDA is ranked 4th. The most important reason people chose Any unlocked Android smartphone with LineageOS is:
You can choose between many devices.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Supports other Operating systems
There are other Operating Systems available like: SailfishOS or Debian.
Pro Has a physical keyboard
It has a physical keyboard so it can be used as a very portable net/notebook alternative.
Pro You can choose your favorit phone
You can choose between many devices.
Pro Opensource
LineageOS is completly open source.
Pro microG
there is a port "LineageOS for microG" that already has microG included, an opensource alternative to the proprietary GApps: https://lineage.microg.org
Cons
Con Battery
Makes it a useless phone.
Con Warranty
In some countries(excluding all counties in the EU) you can lose your warranty if you flash new software to it.