Try Onyx Boox Tab X. I found it to be the only viable option now and it's really good. They did some own stuff to have "ultrafast" refresh rate (you can choose

Try Onyx Boox Tab X. I found it to be the only viable option now and it's really good. They did some own stuff to have "ultrafast" refresh rate (you can choose desirable tradoff some ghosting for refresh rate). Stylus and notes are pretty good too.