| 1. Possibility of mains charging | String | X |
| 1. E-Ink display generation | String | X | |||
| 2. Touch display type | String | ↑ | X | ||
| 3. Number of display colors | String | ↑ | X |
| 1. Graphic | String | X | |||
| 2. Other | String | ↑ | X | ||
| 3. Convert text to voice | String | ↑ | X |
| 1. Paging buttons | String | X |
| 1. Built-in backlight | String | X |
| 1. Multimedia formats | String | X | |||
| 2. Book and document formats | String | ↑ | X |