The BOOX Note Air 4C ($529) redefines what an E-Ink tablet can do. Combining a 10.3″ color Kaleido 3 display, Android 13 flexibility, and stylus support, it’s a powerhouse for reading, note-taking, and light productivity—without the distractions of a traditional tablet.
Key Features & Performance
10.3″ Kaleido 3 E-Ink Display (Color + B&W Modes)
- 4,096 colors—great for comics, textbooks, and PDFs.
- 300 PPI (B&W) / 150 PPI (color)—sharp for reading, softer for color content.
- Adjustable refresh rate (reduces ghosting in apps).
Android 13 + Google Play Store
- Install Kindle, Libby, OneNote, Evernote, etc.
- Not optimized for video/gaming (slow refresh rate).
Stylus Support (Magnetic, Pressure-Sensitive)
- Feels like paper (textured screen).
- Great for notes & sketches—but eraser function is clunky.
Long Battery Life (Up to 1 Week)
- Lasts days with moderate use (vs. weeks on a Kindle).
- Wi-Fi & frontlight drain battery faster.
Expandable Storage (microSD) + Cloud Sync
- Store thousands of books & notes.
Pros & Cons
Pros:
- Best color E-Ink display for comics & textbooks.
- Full Android app support (Kindle, Libby, etc.).
- Excellent stylus for notes/sketches (minus eraser).
- Highly customizable display & UI.
Cons:
- Expensive ($529).
- Eraser function is frustrating.
- Not for video/multimedia.
- Steeper learning curve than Kindle.
Alternatives
- Kindle Scribe ($420) – Better for pure reading/writing (no color, no Android).
- reMarkable 2 ($299+) – Best for distraction-free writing (no color, no apps).
- Kobo Libra Colour ($250) – Cheaper color e-reader (smaller, no stylus).
Final Verdict: Who Should Buy It?
Best for:
- Avid readers who want color for comics/textbooks.
- Note-takers & doodlers who need Android app flexibility.
- **Those who want one device for reading + notes (without iPad distractions).
Not ideal for:
- Casual readers (a Kindle is cheaper/simpler).
- Media consumers (video playback is poor).
- Those who want plug-and-play ease.
Rating: 8.5/10
(The most versatile E-Ink tablet, but niche and pricey.)
Where to Buy:
- $529 (Amazon, BOOX Store).
