Memory is different from device to device.
If you check “stats” in top right gear menu, you’ll see on lower number how much memory Nomad has available.
This is almost fixed, maybe differing a tiny bit after a restart.
I put a list together, what you can do.
But to things are missing:
Only use as much polygons you really need.
Dyntopo with detailing just specific area can be much less memory hungry, than subdividing everything.