E-readers don’t have to be big, expensive, or locked into one ecosystem. Xteink, a Chinese brand quietly challenging the likes of Amazon and Kobo with compact devices, just announced its latest model.

The Onyx BOOX Go 6 (Gen II) is an eBook reader with a 6 inch, 1448 x 1072 pixel E Ink display featuring 300 pixels per inch, a glass cover, capacitive touch input, and a front light with support for ...