Onyx Boox · Updated July 2026
Onyx Boox Note Air4 C: price, specs & release date
Onyx Boox Note Air4 C, released 2024-10. Every price and spec below is linked to its source and dated — no guesses.
Source: shop.boox.com verified ✓ corroborated verify in ledger
The Onyx Boox Note Air4 C is listed at $499.99 on shop.boox.com as of 2026-07-25, #16 cheapest of 17 e readers (median $239.99); other retailers may be lower. It earns a Bronze Deskmark — 59/100 pay-blind standing, #13 of 19 in class.
Verified Jul 25, 2026 · figures linked to their source in the table below
- Best for Strong overall device, well-liked by reviewers testing it hands-on; Fast performance for an Onyx/E Ink device.
- Skip if Handwritten notetaking experience falls short of expectations is a dealbreaker.
Price history
$499.99Rose from the price on record when we began tracking (2026-07-25). A dated chart builds here as the price moves over the coming days.
Is the Onyx Boox Note Air4 C a good buy?
At $500, the Onyx Boox Note Air4 C is the most expensive of the 16 e readers we track, where the median is $235. On the spec sheet, its ppi bw of 300 is the highest of the 19, its release of 2024 is the highest of the 17, and its screen of 10.3 in is above the median of the 19. By release date, it is among the newer of the 17 we date.
Evidence of Record
Our data- Independent labsmeasured it
- 3
- Physical metricsrecorded
- 7
- Outlets on recordall tested
- 3
3 independent labs measured this product, logging 7 distinct physical metrics between them — price, weight, dimensions and 4 more. That is how much independent evidence stands behind any claim about it — not a rating of the product.
price · weight · dimensions · ram · storage · battery · resolution
Review consensus · sourced & dated
What reviewers say about the Onyx Boox Note Air4 C
Across 3 testing outlets, the Boox Note Air 4C lands as a well-liked color e-reader/tablet hybrid, with XDA Developers calling it a "near-perfect everything device" they "really love" and Good e-Reader praising it as the fastest Onyx product they've reviewed. Reviewers highlight the color E Ink display's strength for comics and graphic novels, but flag weaker-than-hoped handwriting/notetaking performance, slow charging, and only marginal weight savings over its predecessor.
Based on 3 reviews · 3 lab-tested · 2024-11-02–2025-04-30
Tested by XDA Developers, Good e-Reader, MakeUseOf
Consistently praised
- Strong overall device, well-liked by reviewers testing it hands-on · 2 sources
- Fast performance for an Onyx/E Ink device
- Color E Ink display suits comics, graphic novels, and colored book covers well
Commonly flagged
- Handwritten notetaking experience falls short of expectations
- Slow charging, taking a couple of hours to fully charge
- Weight reduction versus prior model is negligible/unnoticeable
Where reviewers disagree Outlets report slightly different specs — price ($499.99 per Good e-Reader and MakeUseOf vs $529.99 per XDA) and weight (420g per XDA/Good e-Reader vs 430g per MakeUseOf) — though these are minor measurement discrepancies rather than a disagreement in overall verdict.
The sources (3)
Price: $529.99 · Weight: 420g · Dimensions: 226 x 193 x 5.8 mm · RAM: 6GB · Storage: 64GB · Battery: 3,700mAh
It's a near-perfect everything device
I really love it
Handwritten notetaking isn't what I'd hoped
Price: $499.99 · Resolution (B/W): 2480 x 1860 · PPI (B/W): 300 PPI · Weight: 420g · Battery: 3,700mAh · RAM: 6GB · Storage: 64GB
This is by far the company's most ridiculous release.
The differences are negligible: 10 G of weight savings is unnoticeable by the human hand
This is the fastest Onyx product we have ever reviewed.
Price: $499.99 · Battery: 3700mAh · Weight: 430g · Dimensions: 226 × 193 × 5.8mm · RAM: 6GB · Storage: 64GB
This makes it perfect for appreciating the art of colored book covers and enjoying graphic novels and comic books.
It doesn't charge quickly, with the tablet taking a couple of hours to go from empty to full.
Specifications
| Price (US) | $499.99 — current on record (was $469.99) |
|---|---|
| Brand | Onyx Boox |
| Released | 2024-10 |
| Screen (in) | 10.3 |
| Ppi bw | 300 |
| Storage (GB) | 64 |
| Color display | Yes |
| Warm light | Yes |
| Waterproof | No |
| Page turn buttons | No |
| Battery weeks | — |
| Stylus included | Yes |
Source: shop.boox.com (verified 2026-07-09) · corroborated by en.wikipedia.org. The official BOOX store product page (shop.boox.com) confirmed verbatim the 10.3" Kaleido 3 (4,096-color) screen, B/W resolution 2480 x 1860 (300 ppi), 64 GB ROM, 6 GB RAM, Android 13, a Front Light with CTM (Warm and Cold), a 3,700 mAh Li-ion Polymer battery, and the BOOX Pen Plus included in the standard box; the only button listed is the "Power Button with Fingerprint Recognition" and the comprehensive hardware spec lists no IP water rating, so page_turn_buttons and waterproof are false. That page's device comparison table lists the Note Air4 C at "$469.99 Order Now" (distinct from the Note Air3 C at $499.99 and Tab Ultra C Pro at $599.99). The Wikipedia Onyx Boox release-date table corroborates the October 2024 launch, the Kaleido 3 panel, Android 13, 6 GB RAM, 64 GB storage, and the 10.3" (2480×1860) screen for the exact Note Air4 C row. No battery-life figure in weeks appears on either page, so battery_weeks is null.
Is the Onyx Boox Note Air4 C worth it vs cheaper e readers?
Onyx Boox Note Air4 C against its closest cheaper and pricier e readers on the specs that matter — every value sourced. See all 17 ranked
| Product | Price | Screen (in) | Ppi bw | Storage (GB) | Color display | Warm light |
|---|---|---|---|---|---|---|
| Onyx Boox Note Air4 C this | $499.99 | 10.3 | 300 | 64 | Yes | Yes |
| Amazon Kindle Scribe (2024) | $399.99 | 10.2 | 300 | 16 | No | Yes |
| reMarkable Paper Pro | $629 | 11.8 | 229 | 64 | Yes | — |
Frequently asked questions
What do reviewers say about the Onyx Boox Note Air4 C?
Across 3 testing outlets, the Boox Note Air 4C lands as a well-liked color e-reader/tablet hybrid, with XDA Developers calling it a "near-perfect everything device" they "really love" and Good e-Reader praising it as the fastest Onyx product they've reviewed. Reviewers highlight the color E Ink display's strength for comics and graphic novels, but flag weaker-than-hoped handwriting/notetaking performance, slow charging, and only marginal weight savings over its predecessor. Praised: Strong overall device, well-liked by reviewers testing it hands-on; Fast performance for an Onyx/E Ink device; Color E Ink display suits comics, graphic novels, and colored book covers well. Flagged: Handwritten notetaking experience falls short of expectations; Slow charging, taking a couple of hours to fully charge; Weight reduction versus prior model is negligible/unnoticeable. (From 3 tester reviews, 3 lab-tested.)
How much does the Onyx Boox Note Air4 C cost?
The Onyx Boox Note Air4 C has a US price of $499.99, as of 2026-07-25.
How does the Onyx Boox Note Air4 C compare on price?
At $500, the Onyx Boox Note Air4 C is the most expensive of the 16 e readers we track, where the median is $235.
Has the Onyx Boox Note Air4 C's price changed?
No — the Onyx Boox Note Air4 C has held at $499.99 since 2026-07-25.
What is the lowest price the Onyx Boox Note Air4 C has been?
The lowest we have recorded for the Onyx Boox Note Air4 C is $499.99 on 2026-07-25.
Is now a good time to buy the Onyx Boox Note Air4 C?
The Onyx Boox Note Air4 C is currently $499.99; the lowest we have recorded is $499.99 (2026-07-25). Every price is dated, so you can judge it against its own history.
When was the Onyx Boox Note Air4 C released?
The Onyx Boox Note Air4 C was released 2024-10.
What are the Onyx Boox Note Air4 C's key specs?
Onyx Boox Note Air4 C (Onyx Boox): screen in 10.3, ppi bw 300, storage gb 64, color display Yes, warm light Yes. Full sourced spec sheet verified 2026-07-09.
Price of record: $499.99 at shop.boox.com, 2026-07-25. Other retailers may be lower — check the current price:
See Onyx Boox Note Air4 C on Amazon As an Amazon Associate we earn from qualifying purchases.Similar e readers
Nearest in price — swipe to browse. Every pick sourced and dated.
All e readers ranked · Open data & methodology · Queryable via MCP
Compare with
Cheaper e readers
- Amazon Kindle Scribe (2024) $399.99
- Kobo Elipsa 2E $399.99
- Amazon Kindle Colorsoft Signature Edition (2024) $279.99
- Onyx Boox Palma 2 $269.99
- Kobo Sage $259.99
- Onyx Boox Go Color 7 $249.99
Step up
- reMarkable Paper Pro $629
More from Onyx Boox
- Onyx Boox Page $239.99
- Onyx Boox Palma $199.99
- Onyx Boox Palma 2 $269.99
- Onyx Boox Go Color 7 $249.99
Part of the Tablets & e-readers cluster
Screens for reading, drawing and notes. Same sourcing, same dated prices: