Here are all of the modern Hisense E INK smartphones
The Hisense A5 and Hisense A5 Pro use the traditional black and white e-paper display. The A5 came out last year and the Pro is the better buy, due to a higher version of Android and better hardware specs. The Hisense A5C and A5 Pro CC both came out this summer and are the first phones to employ color e-paper, the same technology that the Pocketbook Color brought to the table. I think the Pro CC is the better buy, it has a better processor, a fingerprint scanner, a dedicated speaker, and better hardware specs.
The Hisense A6L is a bit of an anomaly, it is similar to the Yotaphone, with one screen having an LCD display and the other E INK. This device has been lost in the shuffle, even though it has great hardware, and a modern version of Android, it is very underrated.