Onyx's Boox C67ML is a touch E Ink (6" 1024x758, Carta) e-reader based on Android 4.22. It uses a dual-core 1.2Ghz CPU and has 8Gb of built-in memory with a TF-card card slot.
The Boox C67ML is now shipping for $168.
E Ink display info:
6" 1024x758 E Ink Carta