I followed the instructions at this site to install Jupyter/Python including numpy and matplotlib, on my Android phone:

leouieda.com/blog/scipy-on-android.html

It worked as advertised. Granted, it was a symbolic gesture, since I can't imagine doing any real work on my phone, but it answers the question of whether I could live with an Android tablet as a laptop replacement. My definition du jour of a "real computer" is anything that can run Jupyter. ;-)

Being kind of ignorant of the inner workings of this stuff, I was quite impressed.