Summary:
- Hisense has unveiled the A9, a new smartphone that features an e-ink display on the back of the device.
- The e-ink display can be used for tasks like reading, note-taking, and displaying information without draining the phone's main battery.
- The A9 is targeted at users who want the benefits of an e-ink display, such as reduced eye strain and longer battery life, combined with the functionality of a traditional smartphone.