Comment by tejohnso

You're using Kaleido 3 then.

Compared to the previous generation, E Ink Kaleido 4 doubles its color gamut volume to more than 40K, increases white reflectance by 15%, and improves contrast by 50%. Additionally, with the introduction of new algorithms, E Ink Kaleido 4 is capable of video playback at up to 18 frames per second (FPS).