The OP asked about a Carta screen, nothing about high-res or low-res in that post. And the PB TL3 has a Carta screen. So it meets the OP's requirements.
But I admit that high-res is better, of course
Nathan may not be able to think of reasons why to buy the PocketBook, but I can. Just to name a few: native folder support, the possibility to install additional reading apps, including the almost perfect CoolReader, and advanced configurability. For me, this makes the PocketBook one of the most versatile readers available on this planet right now. But of course, it all depends on your priorities, and Nathan's priorities obviously are different than mine.
At least we've given the OP a couple of options to look into