Looks like a 100% knockoff of the reMarkable 2, including the templates and pretty much every single feature. Only that the reMarkable came out 3 years ago, and doesn’t have problems with any type of document, be it epub, mobi, pdf, doc/x or whatnot.

Now that wasn’t cheap either (think I paid almost $500 and had to pre-order it almost a year before), but the quality and functions are top notch.