Thank you for your advices, @booklover6 and @Rzetlin!
The heaviness is something I don't really mind since I read mainly at home, but I do really care about the definition and the contrast.
As far as you know, does a larger screen (despite being bigger by only 0,8'') implies a better reading experience?
I'm still doubtful wether to buy one or the other, I should really make up my mind soon!
PS: probably the Aura One might be my lifetime reader, but 230 € is quite a great expense for me...
