
PocketBook InkPad 4
Score: 79/100
Kobo Libra Colour
Score: 81/100Rankings

The Kobo Libra Colour is a 7-inch waterproof colour e-reader with a Kaleido 3 display, 32 GB storage and support for a magnetic stylus. Its colour and stylus capabilities consume more power and the lack of expandable storage may limit long-term library growth. Best for comic and manga fans or note-takers who want a portable colour device with a larger screen.

The PocketBook InkPad 4 is a 7.8-inch color e-reader with a vivid Kaleido 3 display and robust waterproof build. Its weight and lack of expandable storage are notable trade-offs. Ideal for readers who prioritize color comics and durability over ultra-light portability.
| Attribute | ![]() | ![]() |
|---|---|---|
7.8 inchesbest | 7 inches | |
| ↓ lower better | 265 g | 199.5 gbest |
32 GBbest | 32 GBbest | |
150 ppibest | 150 ppibest | |
1 GBbest | — | |
| ↓ lower better | 160 mm | 8.3 mmbest |
25 formatsbest | 16 formats | |
2,900 mAhbest | 2,050 mAh |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance(1) | ||
Processor | Quad Core 1.8GHz | Dual-core 2 GHz |
Display(1) | ||
Screen Size (inches) | 7.8 inches | 7 inches |
Battery & Power(1) | ||
Battery Capacity (mAh) | 2900 mAh | 2050 mAh |
Connectivity(2) | ||
Wi‑Fi Standard | Dual-band 2.4/5 GHz | 802.11 ac/b/g/n |
Bluetooth Version | 5.0/5.4 | 5.0 |
Build & Design(2) | ||
Weight (g) | 265 g | 199.5 g |
Thickness (mm) | 160 mm | 8.3 mm |
Software(2) | ||
Supported File Formats (formats) | 25 formats | 16 formats |
Operating System | Linux 4.9.56 | Linux-based |


Products in the top-left offer the best value (high score, low price).

Professional reviewers commend the InkPad Color 3 for bringing color e-reading into the mainstream with its vivid Kaleido 3 screen, eye-friendly SMARTlight and robust waterproof build, while noting its lack of external storage and heavier chassis.
Everyday users praise the device's portability, long battery life, clear color display for comics and manga, and the convenience of built-in audio, but complain about its relatively heavy chassis and inability to expand storage.

Professional reviewers applaud the Libra Colour for its lighter chassis, upgraded 2 GHz CPU and the vibrant Kaleido 3 screen that makes comics and PDFs come alive. They also caution that the color features and optional stylus increase power consumption and that the fixed 32 GB storage cannot be expanded.
Everyday users love the portable 7-inch form factor, the ample 32 GB library capacity and the vivid colors for manga and cover art, while repeatedly noting the strong battery life after prolonged use. Common complaints revolve around the separate stylus purchase, lack of expandable storage and occasional lag when handling high-resolution images.