Today we will look at three 10.3″ eink color note-taking tablets from Onyx Boox – The Tab Ultra C Pro, Note Air 3 C and the Tab Ultra C. All of them are using Kaleido 3 and were released in 2023 but each is different and buyers get to choose the one that suits them best. You can use the code BOOXAFF to get a small discount at the Boox Shop. Check out their specs below-
| Features | Boox Tab Ultra C Pro | Boox Tab Ultra C | Boox Note Air 3 C |
| Price | $649 | $599 | $499 |
| Buy From | Boox Shop | Boox Shop | Boox Shop |
| Discount Coupon - BOOXAFF | |||
| Boox EuroShop | Boox Euro Store | Boox Euro | |
| Operating System | Android 12 | Android 11 | Android 12 |
| Screen | |||
| Screen | 10.3" Kaleido 3 (4,096 colors) Carta 1200 glass screen with flat cover-lens | 10.3" Kaleido 3 (4,096 colors) Carta 1200 glass screen with flat cover-lens | 10.3" Kaleido 3 (4,096 colors) Carta 1200 glass screen with flat cover-lens |
| Resolution | 2480 x 1860 px | 2480 x 1860 px | 2480 x 1860 px |
| Resolution Color | 1240 x 930 px | 1240 x 930 px | 1240 x 930 px |
| PPI B/W | 300 | 300 | 300 |
| PPI Color | 150 | 150 | 150 |
| Frontlight | Front Light with CTM (Warm and Cold) | Front Light with CTM (Warm and Cold) | Front Light with CTM (Warm and Cold) |
| Hardware | |||
| CPU | Qualcomm 2.8Ghz Octa-core + BSR | Qualcomm Octa Core | Qualcomm 2.4Ghz Octa-core + BSR GPU |
| RAM | 6GB (LPDDR4X) | 4GB (LPDDR4X) | 4GB (LPDDR4X) |
| Internal Storage | 128GB | 128GB (UFS2.1) | 64GB (UFS2.2) |
| External Storage | microSD | microSD | microSD |
| Audio | Dual Speakers & Microphone | Dual Speakers and Microphone | Dual Speakers & Microphone |
| Battery | 4,600mAh Li-ion Polymer | 6,300mAh Li-ion Polymer | 3,700mAh Li-ion Polymer |
| Connect | USB-C with OTG | USB-C with OTG | USB-C with OTG |
| Fingerprint | Yes on power button | Yes on power button | Yes on power button |
| G-sensor | Yes | Yes | Yes |
| Sizes, Color | |||
| Dimesnsions | 225 x 184.5 x 6.6 mm (8.9" x 7.3" x 0.26") | 225 x 184.5 x 6.7 mm (8.9" x 7.3" x 0.26") | 226 x 193 x 5.8mm (8.9" x 7.6" x 0.23") |
| Weight | 450g (15.9oz) | 480g (16.9oz) | 430g (15.2oz) |
The Ultra Versions are for people who want a tablet-like experience in an eink device. While the Note Air 3C is for ones who want a lighter device they can lug around to do sketches, note-taking.
Video Version
