I'm late to the convo, I know. I was just checking out the details telling me I indeed had no reason to mind the AWU2 over my AWU1 I purchased last summer, mainly to have some health monitoring after a auto-immune disease that obviously nobody knows about where it comes from...
To be on topic: let's be nerds that know their mathematics well:
if...
the AWU2 has 160% transistors compared to the AWU1 (being 100%)
Then...
the AWU1 has 62.5% the amount of transistors compared to the AWU2 (then being 100%)
which meanzzzz....
I feel barely like a fool having 37.5% less transistors than the new AWU2 has 😎