Looking for an honest Kobo vs Onyx Boox Note Air3 C comparison in 2026? We scored both e-readers on the same six-dimension framework — performance, battery, display, camera, design and value — using identical methodology, so the numbers below are directly comparable. In our overall scoring the Onyx Boox Note Air3 C comes out ahead 52/100 to 60/100 — a 8-point gap. The widest gap is in design and build, where the Kobo pulls noticeably ahead. On price the Kobo undercuts the Onyx Boox Note Air3 C by 100% ($249 vs $499), which materially changes the value calculus for budget-conscious buyers.
Kobo
Prices may vary · We may earn a commission on purchases. Learn more
Onyx Boox Note Air3 C narrowly beats the Kobo in the e-readers category, especially in display quality, scoring 60 vs 52. If you want the better overall e-readers, Onyx Boox Note Air3 C is the recommended choice.
Picking Onyx Boox Note Air3 C over Kobo means trading these off.
$249
Scores are relative within the e-readerscategory. Percentages show each dimension's weight in the overall score. A difference of less than 0.5 points is considered a tie.
✓ Pros
✗ Cons
✓ Pros
✗ Cons
| Spec | Kobo | Onyx Boox Note Air3 CW |
|---|---|---|
| Price | 249$✓ | 499$ |
| Display | 8" | 10.3"✓ |
| Display Type | E-Ink Carta 1200 | E-Ink Kaleido |
| Resolution | 1920 x 1440 | 1872 x 1404 |
| Storage | 32GB | 64GB✓ |
| Battery Life | 672hrs | 672hrs |
| Bluetooth | 5.0 | 5.0 |
| Wi-Fi | Wi-Fi 5 | Wi-Fi 5 |
| Weight | 240g✓ | 420g |
| Dimensions | 178 x 130 x 8 mm | 245 x 195 x 6.8 mm |
| Colors | Black | Black |
Buy Kobo if…
Choose the Kobo if budget is your top priority — it offers competitive specs at a lower price point.
Buy Onyx Boox Note Air3 C if…
Buy the Onyx Boox Note Air3 C if you want the best overall value in this comparison. It scores higher overall and is the recommended choice for most buyers.
Onyx Boox Note Air3 C narrowly beats the Kobo in the e-readers category, especially in display quality, scoring 60 vs 52. If you want the better overall e-readers, Onyx Boox Note Air3 C is the recommended choice.
No, Onyx Boox Note Air3 C scores higher (60 vs 52).
Kobo is cheaper at $249 vs $499 for the Onyx Boox Note Air3 C.
Choose the Kobo if budget is your top priority — it offers competitive specs at a lower price point.
Buy the Onyx Boox Note Air3 C if you want the best overall value in this comparison. It scores higher overall and is the recommended choice for most buyers.
Both offer 672 hours of battery life.
Onyx Boox Note Air3 C has the larger display (10.3" vs 8").
Kobo is lighter at 240g vs 420g.
Reviewed by VersusMatrix Editorial Team
Last updated: June 1, 2026
Methodology: AI-powered analysis of technical specifications from manufacturer data. Scores are calculated by comparing products across multiple dimensions and normalized relative to the full category database. Our editorial process is independent and not influenced by affiliate partnerships.