The Palma is a single-use e-reader with a solid design and E Ink screen, but it suffers from connectivity issues and bugs. Despite its flaws, the Palma can be a useful device for reading articles ...
The Onyx Boox Go 6 is an easy-to-carry ereader compatible with many ebook formats via the Google Play Store, but it lacks the waterproofing and smooth performance of the Amazon Kindle Paperwhite.
So while the colour fidelity never gets zingier than a diffuse shade of washed out, the Boox Tab Ultra C is still a unique and powerful (yet niche and pricey) tool for a particular type of user.