There are a growing number of devices available with E Ink’s new Kaleido color display technology which allows the company’s electronic paper displays to display up to 4,096 colors while delivering the benefits of E Ink, including low power consumption, visibility in the sun and reduced eye strain.
Most of these devices were designed primarily for reading e-books and digital comics and periodicals. But the new Onyx BOOX Nova3 Color is basically an Android tablet that supports pen and touch input and an E Ink display.
This means that in addition to reading color and black-and-white content, you can annotate documents with handwritten notes and run third-party Android apps to edit documents, play games, or even watch videos – although some things work best on tablets with E Ink screens.
The BOOX Nova3 Color is now available for $ 420.
A few things to keep in mind before you take out your wallet:
- E Ink Kaleido color displays do not display as many colors as an LCD or AMOLED display, and colors tend to look duller due to the way they are implemented with a color filter on an E display. Ink in grayscale.
- This color filter also results in lower resolution and pixel density when viewing color content. The Onyx BOOX Nova3 Color can display black and white text and graphics at 300 pixels per inch, but the color only appears at 100 pixels per inch.
- The screen can be viewed using only ambient light, but there are side lights that illuminate the screen to make it easier to see in low-light environments. Unlike other front-lit e-readers, the Onyx BOOX Nova3 Color does not have an adjustable color temperature to read with less blue light at night.
- Screen refresh rates are much lower on E Ink displays than on most other modern display types. This makes videos difficult to watch and many games difficult to play. In a review of this eReader, Gizmodo shows that ghosting is also an issue (where some of the graphics from previous scenes stay on screen for a few seconds while new frames from a video are displayed).
On the bright side, the Onyx BOOX Nova3 Color is expected to offer days of battery life, the ability to read and annotate documents on a portable device with stylus support, and at least the ability to give it a try. Android applications which may not be available for other E Ink color devices, although some may not be fully usable on a device with this type of screen.
Here’s a look at some key specs for the latest member of the Onyx BOOX family:
|Display||7.8 inch Kaleido Plus|
4096 colors or 16 shades of gray
1872 x 1404 (300 dpi grayscale)
624 x 468 (100 dpi color)
Wacom digitizer (4096 pressure levels with stylus)
|Processor||Qualcomm Snapdragon 636|
|RAM||3 GB LPDDR4x|
|Storage room||32 GB EMMC|
|The ports||USB Type-C OTG|
|audio||Speaker and microphone|
|Software||Android 10 with custom user interface|
|Dimensions||197.3 x 137 x 7.7 mm|