> It also has a full Android system, which comes with advantages for sure but invites distractions and leads to very disappointing battery life.

While some models have a disappointing battery life, it's most definitely because of BSR[0] not because of them running Android. I had a Note Air 3 and that thing got easily 2 weeks of battery life with heavy use while the BSR version (Note Air 3C) barely survived 2 days.

0: https://shop.boox.com/blogs/news/boox-super-refresh-bsr-tech...