Onyx BOOX Tab Ultra C is an Android 11 tablet with a 10.3-inch E-Ink Kaleido 3 color display with 2480 x 1860 black & white resolution, 1240 x 930 color resolution, a capacitive touchscreen and support for a stylus with 4096 levels of pressure.
The tablet is an evolution of the BOOX Tab Ultra black-and-white tablet with a 4096-color E-Ink display using the latest Kaleido 3 screen that increases color saturation by 30 percent and reduces blue light reflections compared to earlier Kaleido Plus displays.
BOOX Tab Ultra C specifications:
- SoC – Unnamed “Qualcomm Advanced” octa-core processor (likely the 2.0 GHz Snapdragon 662 octa-core Cortex-A73/A53 processor like in its black-and-white predecessor)
- System Memory – 4GB LPDDR4X
- Storage – 128GB UFS 2.1 flash, microSD card slot
- 10.3-inch Kaleido 3 (4,096 colors) Carta 1200 glass screen with flat cover-lens
- Resolution: B/W: 2480 x 1860 (300 ppi); color: 1240 x 930 (150 ppi)
- Capacitive touch and support for BOOX stylus touch with 4,096 levels of pressure sensitivity
- Front Light with CTM (Warm and Cold)
- Audio – Built-in dual speakers, built-in dual microphones
- Camera – 16MP rear camera mostly used for document scanning
- Connectivity – Dual-band Wi-Fi and Bluetooth 5.0
- USB – USB Type-C OTG port that can also be used as an audio jack
- Sensors – G-sensor for Auto Rotation
- Supported file formats
- Document – PDF, DJVU, CBR, CBZ, EPUB, AZW3, MOBI, TXT, DOC, DOCX, FB2, CHM, RTF, HTML, ZIP, PRC, PPT, PPTX
- Image – PNG, JPG, BMP, TIFF
- Audio – WAV, MP3
- Misc – Power Button with Fingerprint Recognition
- Battery – 6,300mAh Li-ion Polymer
- Power Supply – Charging via USB-C port
- Dimensions: 225 x 184.5 x 6.7 mm
- Weight – About 480 grams
The BOOX Tab Ultra C ships with the BOOX Pen2 Pro (Black) stylus, a USB Type-C cable, a card tray eject tool, a Quick Start Guide, and a warranty sheet. We’re told the tablet supports third-party apps, so I suppose that means Google Play might be pre-installed, unless they expect people to sideload apps.
We are not told anything about refresh rates. I’ve included the unboxing video below to have a better look at the ports and hardware features, but the company has uploaded a few very short videos showing the device in action, I’d just wish there were a few more, for example, to show features such as document scanning with the built-in camera.
We’ve covered 10.3-inch e-paper tablets in the past including the KloudNote e-Reader and the PineNote devkit, but those were all with a black & white display and the BOOX Tab Ultra C is the first 10.3-inch tablet I’ve seen with a color e-Ink display. The price of such hardware is still pretty expensive with Onyx selling the BOOX Tab Ultra C for $599.99.
Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.