Boox Go 6 g2 OR Bigme B6 BW

Recently I want to get and android EReader and was about to purchase boox today but i heard bigme jas better specs? This will be my first android ereader and i dont mind the complexity of setting up bcs i heard it requires a lot of “tweaks”. I also plan to use Koreader on the device instead of stock UI.

Im unsure about which product is better despite the specs ofcourse its bigme right? But i cant find genuine reviews abt the battery life, screen, lags, software and etc.

Important aspects:

1. CRISP BW screen. This is super important.
2. Fast latency & No lags
3. Ghosting minimal
4. Battery life (without wifi)
5. Accessing Mihon, Manga apps
6. Sideload books // Calibre usage.
7. Reading PDFS (very important for thesis papers)

Initially I was going to get boox + pen support is great. However after learning the bigme has better specs, i was intruiged but unsure if it can deliver a good screen & pdf quality reading.