Thank you all for replying!
On additional note on the Khadas website, under the specifications as starred (*) additional information it says:
 LPDDR4 or LPDDR4X RAM will be selected randomly during manufacturing.
I know stuff are randomized in production all the time, but I find it a bit weird they go upon the RAM on which the LPDDR4X one is much more efficient if you want some kind of portability with a battery and also because I think LPDDR4X is not backwards compatible meaning that the boarding having this one will be different then the one that can have LPDDR4, am I missing something?
Ya i would agree that seems a bit weird to make a disclaimer like.
without comparing the actual specs between the 2 to see the differences its hard to say but typically whenever i have seen disclaimers like that it usually equates to parts-supply chain stuff where depending on the availability of the part at that point in the production cycle maybe what they are talking about. that would be my quess.