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- Focus Plus vs Libra Colour
inkBOOK Focus Plus vs Kobo Libra Colour
What Focus Plus does better (2) and where Libra Colour wins (4) — every spec side by side.
vs
8.8Screen9.3
2.5Comfort & build6.5
7.6Battery7.2
8.1Features8.3
Dimensions
Size comparison
Focus PlusLibra Colour
| Focus Plus | Libra Colour | Difference | |
|---|---|---|---|
| Height | 192 mm | 161 mm | +31 mm |
| Width | 140 mm | 145 mm | −5 mm |
| Thickness | 9 mm | 8 mm | +1 mm |
| Weight | 251 g | 200 g | +51 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Focus Plus better than Libra Colour?
- Battery capacity2,900 mAh vs 2,050 mAh+41%
- Screen size7.8″ vs 7″+11%
Why is Libra Colour better than Focus Plus?
- Battery life (claimed)4 weeks vs 6 weeks+50%
- Weight251 g vs 200 g+25%
- Colour screenNo · Focus Plus: Yes
- Thickness9 mm vs 8 mm+12%
Specifications
Side by side
| Screen | ||
| Screen size | 7.8″ | 7″ |
| Resolution | 1872 × 1404 | 1680 × 1264 |
| Pixel density | 300 ppi | 300 ppi |
| Screen technology | E Ink Carta 1300 | E Ink Kaleido 3 |
| Colour screen | No | Yes |
| Colour pixel density | — | 150 ppi |
| Touchscreen | — | Yes |
| Front light | Yes | Yes |
| Warm light (adjustable colour temperature) | Yes | Yes |
| Design | ||
| Weight | 251 g | 200 g |
| Width | 140 mm | 145 mm |
| Height | 192 mm | 161 mm |
| Thickness | 9 mm | 8 mm |
| Protection rating | — | IPX8 |
| Water resistance (IPx) | — | IPx8 |
| Physical page-turn buttons | — | Yes |
| Colours | — | Black |
| Battery | ||
| Battery capacity | 2,900 mAh | 2,050 mAh |
| Battery life (claimed) | 4 weeks | 6 weeks |
| USB-C | Yes | Yes |
| Storage | ||
| Storage | 32 GB | 32 GB |
| RAM | 2 GB | — |
| Memory card slot | Yes | Yes |
| Max memory card | 2,048 GB | 32 GB |
| Pen & notes | ||
| Pen support (handwriting) | — | Yes |
| Software & books | ||
| Platform | Android | Own Linux-based system |
| Operating system | Android 11 | — |
| Google Play apps | — | No |
| Built-in bookstore | — | Rakuten Kobo Store |
| Supported formats | EPUB, PDF, MOBI, AZW3 | EPUB, PDF, MOBI, CBZ, CBR, RTF, TXT, HTML |
| EPUB support | Yes | Yes |
| Text-to-speech | Yes | — |
| Audiobooks / audio playback | — | Yes |
| Public library lending (OverDrive / Libby / Onleihe) | — | Yes |
| Connectivity & audio | ||
| Wi-Fi | Yes | Yes |
| Bluetooth | Yes | Yes |
| Mobile data (4G / LTE) | — | No |
| Performance | ||
| CPU clock | — | 2 GHz |
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