** UPDATE**
Received yesterday and how we talked about it's a Kobo Aura One and it's in pristine conditions
So lucky. I really liked, in my first impressions, the screen size.
I did one test: I searched for a paperback book and how many pages it have, got the same on Kobo and set the font + size I like and the numbers of the pages is almost the same (more ou less 15 pages).
Almost the size of a real book. I liked the weight too, is not heavy.
Now I need to import a case from Aliexpress.