1.onyxbox A60, 6 inches, which better supports pdf in electronic paper books. 1980.

2.onyx boox has produced a 9.7-inch model, which is also handwritten and will be on the market soon. No more than 3000.

3. Hanwang's 6-inch product N6 18 supports handwritten labeling, and there is also an 8-inch product with a price between 2200 and 3200.