As digital note-taking devices continue to evolve, two standout models from Onyx Boox have caught the attention of tech enthusiasts: the Boox Note Air 4C and the Boox Tab Ultra C Pro. Both devices cater to users who need a feature-rich e-paper tablet, but each has distinct strengths. This comparison will help potential buyers decide which one best suits their needs.
Display and Build Quality
Both the Note Air 4C and Tab Ultra C Pro feature a 10.3-inch Kaleido 3 color E Ink display, supporting 4,096 colors. Their black-and-white resolution reaches 300 PPI, while color content is displayed at 150 PPI, ensuring clear visuals for reading, note-taking, and graphics.
However, their screen surfaces differ:
- The Tab Ultra C Pro has a smoother and clearer screen, providing sharper text and improved clarity, making it ideal for working with documents and reading. However, it offers less of a “paper-like” feel when writing.
- The Note Air 4C has a more matte surface, delivering a better paper-like writing experience, but the matte finish slightly reduces display clarity compared to the Tab Ultra C Pro.
In terms of design, the Note Air 4C is slightly thinner and lighter, measuring 226 x 193 x 5.8 mm and weighing 420 grams. Meanwhile, the Tab Ultra C Pro measures 225 x 184.5 x 6.6 mm and weighs 450 grams. Those who prioritize portability may find the Note Air 4C more convenient for travel and daily use.
Performance and Storage
Both devices feature an octa-core processor and 6GB LPDDR4X RAM, ensuring smooth performance and efficient multitasking. However, the Tab Ultra C Pro has a larger 128GB internal storage, whereas the Note Air 4C offers 64GB. For those needing extra space, both models support microSD expansion, allowing for additional storage flexibility. Some users notice that the BOOX Tab Ultra C PRO might operate slightly faster, but this is noticeable only when comparing them side by side.
Software and User Experience
One key difference between the two is their operating systems. The Note Air 4C runs on Android 13, offering the latest security and feature updates, while the Tab Ultra C Pro operates on Android 12. Despite this, their interfaces are nearly identical, as both models run Onyx Boox’s customized Boox OS, which optimizes the software for e-paper displays. Additionally, both devices have access to the Google Play Store, allowing users to install various apps.
Battery Life and Power Efficiency
Battery performance is crucial for e-paper tablets. The Tab Ultra C Pro is powered by a 4,600mAh Li-ion Polymer battery, while the Note Air 4C features a 3,700mAh battery. The larger battery in the Tab Ultra C Pro translates to longer usage between charges, making it ideal for users who need extended screen time.
Additional Features
One of the biggest advantages of the Tab Ultra C Pro is its ability to connect to a dedicated cover with a built-in keyboard and trackpad. This feature transforms the device into a more laptop-like experience, allowing for faster typing, improved navigation, and enhanced productivity. This makes the Tab Ultra C Pro a more versatile option for users who want a device that can handle both reading and work tasks.
Additionally, the Tab Ultra C Pro includes a 16 MP rear camera with LED flash, allowing users to scan documents or capture high-quality images. This feature is particularly beneficial for professionals and students who frequently digitize handwritten notes or paperwork.
Pricing and Value for Money
As of 2025, the BOOX Note Air 4C is approximately $705 CAD, while the BOOX Tab Ultra C Pro is around $845 CAD. These prices are directly converted from US dollars to Canadian dollars, and actual prices in Canada may vary. The price difference reflects the added storage, larger battery, camera, and keyboard support available in the Tab Ultra C Pro.
If you’re looking for BOOX in Canada, Einktab is always glad to offer the best possible deal, along with exceptional customer service, a flexible return policy, and a local warranty with service available in Canada.
Final Verdict: Which One is Right for You?
Both the Boox Note Air 4C and Boox Tab Ultra C Pro are excellent E Ink tablets, but they cater to different user needs:
- The Note Air 4C is more focused on writing. It has a matte screen for a paper-like feel, making it ideal for note-taking, journaling, and sketching.
- The Tab Ultra C Pro is more like a traditional tablet with better screen clarity, more storage, a larger battery, and keyboard support, making it a more universal device for both reading and productivity tasks.
Ultimately, if you prioritize a writing-focused experience, the Note Air 4C is a great choice. But if you want a more versatile tablet that can also function as a lightweight productivity device, the Tab Ultra C Pro is the better option.