I picked up a PicketBook Touch Lux 5 a while back and love it. It runs on the Linux kernel, but not Android or anything, just a customized slimmed down Linux basically. There are some easy to run scripts that give you root and terminal access so you can do SMB share to connect to Calibre wirelessly. I think it works with most formats (PDFs are a bit laggy and hard to read on the small screen, but you can zoom), but it uses epub primarily. Really sleek minimalist UI that you can customize and once you root it you can remove the OEM apps.
It is also super easy to sideload Koreader or Cool Reader. I think the stock interface is pretty good though, just missing some of the Koreader contrast functions.
I picked up a PicketBook Touch Lux 5 a while back and love it. It runs on the Linux kernel, but not Android or anything, just a customized slimmed down Linux basically. There are some easy to run scripts that give you root and terminal access so you can do SMB share to connect to Calibre wirelessly. I think it works with most formats (PDFs are a bit laggy and hard to read on the small screen, but you can zoom), but it uses epub primarily. Really sleek minimalist UI that you can customize and once you root it you can remove the OEM apps.
It is also super easy to sideload Koreader or Cool Reader. I think the stock interface is pretty good though, just missing some of the Koreader contrast functions.
There's also a color version with full color if that's your thing.