I am considering the idea of getting plasma mobile as a primary 'smartphone'.
From what I gather, the best hardware device to run the software is the Nexus 5x (Bullhead) Is this correct?
I would be very interested to hear of other users experiences of using plasma for their main mobile device; it's performance and reliability, etc.

i think this should work

Can I run Plasma Mobile on my mobile device?

Currently, Plasma Mobile runs on the following device types:
I have purchased a Nexus 5X 32GB (by LG).

I chose for the Nexus X5, this Android has the best specifications to port KDE Plasma.

The images are built on top of Halium and KDE Neon.
You can find more information for the "Plasma Mobile" on the following documentation pages. Find here.

Have fun,

Erwin