PocketBook claims in their press release, that the new device uses a slightly improved color display over last years 6" model.
They call it "
new Kaleido" and it supposedly uses a different color filter pattern, that offers better contrast and color saturation.
->
https://www.theverge.com/2021/2/15/2...able-now-price
A Pocketbook employee posted a comparison of the 6" and 7,8" model on
another forum: