41 facts in comparison
BOOX Tab Ultra C Pro vs BOOX Note Air3
This comparison puts the BOOX Tab Ultra C Pro and BOOX Note Air3 side by side — two E Ink Tablets measured against the same 41-spec sheet, with every meaningful gap scored and explained. On our weighted VS Score the BOOX Tab Ultra C Pro finishes ahead, 96 to 67 — a decisive result.
The most consequential difference is color display — the BOOX Tab Ultra C Pro has it, the BOOX Note Air3 does not. A transparency note before you dive in: the spec sheets are BOOX Tab Ultra C Pro 83% and BOOX Note Air3 76% complete. Anything unverified shows as Unknown and is left out of the scores — we never estimate a missing value.
Head-to-head points: every spec is scaled between these products only, so a product can score high here and modestly on its own page, where the VS Score measures it against the median of its class.
Where the BOOX Tab Ultra C Pro beats the BOOX Note Air3
- Higher resolution ?2,480 px vs 1,872 px
- A higher pixel density ?300 ppi vs 227 ppi
- Has color display ?
- Has pen eraser ?
- Much more RAM ?6 GB vs 4 GB
- Much more storage ?128 GB vs 64 GB
- A bigger battery ?4,600 mAh vs 3,700 mAh
Where the BOOX Note Air3 beats the BOOX Tab Ultra C Pro
- A slimmer body ?5.8 mm vs 6.6 mm
Key real-world differences
The spec sheet pulls in both directions. These are the gaps big enough to shape the decision — with the actual figures, and what each one means in real-world use.
- Color displayDisplayYes vs No — only the BOOX Tab Ultra C Pro has it
A colour E Ink panel shows coloured ink, highlights and diagrams.
- Pixel densityDisplay300 ppi vs 227 ppi — 32.2% more for the BOOX Tab Ultra C Pro
More pixels per inch make text and ink strokes crisper.
Beyond roughly 400 ppi, extra sharpness is very hard to see at normal viewing distance.
- Internal storagePerformance128 GB vs 64 GB — 2× more for the BOOX Tab Ultra C Pro
More storage holds more notebooks, books and documents.
- RAMPerformance6 GB vs 4 GB — 50% more for the BOOX Tab Ultra C Pro
More memory keeps large PDFs and apps responsive.
- Battery capacityBattery4,600 mAh vs 3,700 mAh — 24.3% more for the BOOX Tab Ultra C Pro
Rated cell capacity. It is not a runtime figure: screen, chip efficiency and software decide how long a charge lasts, so compare the rated battery life where one is given.
Capacity is not a runtime figure. A rated battery life is missing for at least one of these products, so how long each lasts per charge cannot be compared here.
Which one should you buy?
There is no single answer — it depends on what you will actually use it for. Match your priority to the pick below.
- Best for display BOOX Tab Ultra C Pro takes the category 100 to 59 — driven by color display (Yes vs No).
- Best for writing BOOX Tab Ultra C Pro takes the category 100 to 92 — driven by pen eraser (Yes vs No).
- Best for performance BOOX Tab Ultra C Pro takes the category 100 to 23 — driven by internal storage (128 GB vs 64 GB).
- Best for design BOOX Note Air3 takes the category 100 to 68 — driven by thickness (6.6 mm vs 5.8 mm).
- The safe all-rounder BOOX Tab Ultra C Pro wins more of the categories that carry real weight, topping the overall VS Score at 96.
Where each one falls short
BOOX Tab Ultra C Pro
- Thickness: 6.6 mm vs 5.8 mm
- 7 specs are unreported (shown as Unknown) and excluded from its scores.
BOOX Note Air3
- Color display: Yes vs No
- Pixel density: 300 ppi vs 227 ppi
- Internal storage: 128 GB vs 64 GB
- 10 specs are unreported (shown as Unknown) and excluded from its scores.
What matters to you?
Drag the sliders to weight each category and re-rank the products to suit your priorities.
Score breakdown
Display
Writing
Software
Performance
Battery
Connectivity
Design
Specs last verified September 14, 2026BOOX Tab Ultra C Pro: 34 of 41 specs verified (83%)BOOX Note Air3: 31 of 41 specs verified (76%)Unverified specs show as Unknown — never estimated, never scored
What reviewers say
The bottom line
The BOOX Tab Ultra C Pro is the clear winner, scoring 96 to 67 on our VS Score. It leads on Display, Writing and Performance. The BOOX Note Air3 answers back with stronger Design. Pick the BOOX Tab Ultra C Pro unless Design matters most to you — then the BOOX Note Air3 is the smarter buy.
