I actually find the Aura One quite light compared to what I was reading on, My iPad Air 2. And it is also much lighter than a hard back paper book, that with age will yellow so that the pages have non-uniform background - which is not even backlit.
I had gotten tired of reading on the too small 6" screens even though I liked e-ink displays. The eyes have had it, at least mine have so I need larger font, and more size on the screen is greatly appreciated. That's why I was using my iPad to read on. So thanks for the review which was very thorough but biased by younger, better eyes than mine.
P.S. in addition to my iPad, I have an EZ Reader, Kindle 1, Nook, Bookine, iPhone 6S+, and have had the original Sony reader & a Kindle Voyage (which I returned for refund due to small screen size but still would not fit into my shirt pocket). The Aura One won't fit in my shirt pocket either but it has a larger screen. And my ideal reader would be one that could fit in my pocket, was unbreakable, water & dust proof, read any format & project directly into my brain - bypassing my bad eyes. Not an audio book since my ears are worse than my eyes.
I quit reading paper because I can't increase the font size.