eWritable > Blog > BOOX TAB ULTRA C vs REINKSTONE R1: Which e-ink tablet is best?

BOOX TAB ULTRA C vs REINKSTONE R1: Which e-ink tablet is best?

This page was created to explore the similarities and differences between two e-ink tablets; the ONYX BOOX TAB ULTRA C, and the REINKSTONE R1.

This is currently a simplified comparison consisting of a table of side-by-side specifications, and review cards of each tablet, outlining their pros and cons. If a tablet has a rating then you can also click on it for a full and detailed review of the tablet.

I do write detailed ‘versus‘ comparisons, however because I am only one person it is impractical for me to compare every single e-ink tablet against every other one! So if you think that this page would benefit from being fleshed out with additional information and my own thoughts and opinions, then feel free to drop me an email at dan@ewritable.com – I will prioritise pages that get the most requests πŸ™‚

Additional E-Ink Tablet Resources

If you’re new to e-ink tablets, you may wish to take a look at:

I have also created a gigantic e-ink comparison table (which is also searchable/filterable, so you can whittle down your search to the tablets that best meet your needs).

And a list of (what I believe to be) the best e-ink tablets can be found here.

Now, onto the comparison between the ONYX BOOX TAB ULTRA C and the REINKSTONE R1.

Spec Comparison

Below is the comparison table for the REINKSTONE R1 and ONYX BOOX TAB ULTRA C

PRODUCTBOOX TAB ULTRA CREINKSTONE R1
Specs & ratings infoONYX BOOX TAB ULTRA CREINKSTONE R1
πŸ‘Ž Not Recommended
My Rating
Price (approx)$600
Limited availability
$500
Limited availability
ManufacturerOnyx BooxReinkstone
Release year20232021
SCREENBOOX TAB ULTRA CREINKSTONE R1
Screen typeKaleido 3DES Slurry
Screen size10.3"10.1"
Screen resolution (B/W)1860 x 24801680 x 2232
Screen density (B/W)300dpi280dpi
Colourβœ“
(Kaleido 3)
βœ“
(DES Slurry)
Screen resolution (Colour)930 x 12401680 x 2232
Screen density (Colour)150dpi140dpi
Frontlightβœ“βœ“
Wacom compatibleβœ“β¨―
Buy
HARDWAREBOOX TAB ULTRA CREINKSTONE R1
CPU1.8 Ghz octa-core1.8 GHz quad-core
RAM4Gb4Gb
Storage128Gb64Gb
Battery6300mAh4500mAh
Super Refreshβœ“β¨―
Keyboard folioβœ“β¨―
Speakersβœ“βœ“
Microphoneβœ“βœ“
G-Sensorβœ“βœ“
Ceramic Tip⨯⨯
Bluetoothβœ“βœ“
Fingerprint scannerβœ“β¨―
SD card slotβœ“β¨―
Rear cameraβœ“β¨―
Front camera⨯⨯
Waterproof⨯⨯
USB-Cβœ“βœ“
Width184.5mm167.7mm
Height225mm236mm
Thickness6.7mm6.8mm
Weight480g425g
Buy
SOFTWAREBOOX TAB ULTRA CREINKSTONE R1
Operating systemAndroid 11Android 11
Google Play Storeβœ“βœ“
Kindle supportβœ“βœ“
Handwriting searchβœ“β¨―
Handwriting conversionβœ“β¨―
Insert shapesβœ“β¨―
Insert imagesβœ“β¨―
Split screenβœ“β¨―
Custom templatesβœ“β¨―
No. templates40++
Brush typesFountain Pen, Paintbrush, Ballpoint Pen, Pencil, Marker
Screen shareβœ“β¨―
ADE support⨯⨯
File formatsPDF, EPUB, DOC, DOCX, PPT, PPTX, TXT, HTML, RTF, FB2, CBZ, CBR, AZW3, MOBI, PRC, DJVU, CHM, ZIPPDF, EPUB, TXT, RTF, FB2, MOBI
File formats (image)PNG, JPG, TIFF, BMPPNG, JPG, BMP
File formats (Audio)WAV, MP3WAV, MP3
Buy
BUYBOOX TAB ULTRA CREINKSTONE R1
Where to buyAmazon BE
Amazon DE
Amazon ES
Amazon PL
Amazon US
eBay AU
eBay CA
eBay DE
eBay ES
eBay FR
eBay IE
eBay IT
eBay UK
eBay US
eBay AU
eBay CA
eBay DE
eBay ES
eBay FR
eBay IE
eBay IT
eBay UK
eBay US
PRODUCTBOOX TAB ULTRA CREINKSTONE R1

To compare even more e-ink tablets, click here for the full comparison table.

ONYX BOOX TAB ULTRA C Review Card

Overall rating

Pros

  • Colour screen
  • High screen resolution/density
  • Great hardware specs
  • Very versatile
  • Sophisticated native reading & note-taking apps
  • Handwriting search/conversion
  • Google Play Store
  • Frontlight
  • Optional keyboard attachment
  • Onboard GPU & Boox Super Refresh Tech
  • Audio (speakers and microphone)
  • 16MP rear-facing camera
  • MicroSD card slot

Cons

  • Expensive
  • Steeper learning curve
  • Some chassis design flaws
  • Heavy
  • Writing feels a little 'slippy'
  • GPU/Super Refresh uses more power
  • Screen is slightly darker than Monochrome Tab Ultra

A powerful and versatile COLOUR e-ink tablet that is as close as you can get to a regular tablet/laptop.

REINKSTONE R1 Review Card

Overall rating

Pros

  • More colours

Cons

  • Limited availability
  • Shipping delays
  • Inconsistent communication
  • Screen 'staining'
  • Ghosting
  • Poor performance

NOT RECOMMENDED: This was a Kickstarter campaign, and the backers have reported long shipping delays, inconsistent communication and a poor quality product when it was finally delivered. Therefore, this tablet is not recommended and all ratings have been set to zero.

About the author

Website | + posts

Dan Dutton is passionate about E-ink writing tablets, which bring together the pleasure of writing on paper with the power of digital technology. When he bought his first tablet, he realised that there wasn't a lot of unbiased information available for people that were considering buying an E-ink tablet, and so he built eWritable.

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