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- InkPad 4 black/grey vs Inkpad Color 3 steel
Vivlio InkPad 4 black/grey vs Vivlio Inkpad Color 3 steel
What InkPad 4 black/grey does better (0) and where Inkpad Color 3 steel wins (2) — every spec side by side.
vs
5.5Screen6.5
2.2Comfort & build2.2
6.4Battery8.4
7.1Features7.1
Dimensions
Size comparison
InkPad 4 black/greyInkpad Color 3 steel
| InkPad 4 black/grey | Inkpad Color 3 steel | Difference | |
|---|---|---|---|
| Height | 189 mm | 189 mm | = |
| Width | 134 mm | 134 mm | = |
| Thickness | 8 mm | 8 mm | = |
| Weight | 265 g | 265 g | = |
Drawn to the same scale from the official dimensions (front and side).
Why is InkPad 4 black/grey better than Inkpad Color 3 steel?
InkPad 4 black/grey has no measurable advantages in this pair.
Why is Inkpad Color 3 steel better than InkPad 4 black/grey?
- Battery capacity2,000 mAh vs 2,900 mAh+45%
- Colour screenNo · InkPad 4 black/grey: Yes
Specifications
Side by side
| Screen | ||
| Screen size | 7.8″ | 7.8″ |
| Resolution | 1872 × 1404 | 1872 × 1404 |
| Pixel density | 300 ppi | 300 ppi |
| Screen technology | E Ink Carta | E Ink Kaleido 3 |
| Colour screen | No | Yes |
| Colour pixel density | — | 150 ppi |
| Grey levels | 16 | — |
| Touchscreen | Yes | Yes |
| Front light | Yes | Yes |
| Warm light (adjustable colour temperature) | No | No |
| Design | ||
| Weight | 265 g | 265 g |
| Width | 134 mm | 134 mm |
| Height | 189 mm | 189 mm |
| Thickness | 8 mm | 8 mm |
| Protection rating | IPX7 | IPX7 |
| Water resistance (IPx) | IPx7 | IPx7 |
| Colours | Black, Grey | Blue |
| Battery | ||
| Battery capacity | 2,000 mAh | 2,900 mAh |
| USB-C | Yes | Yes |
| Storage | ||
| Storage | 32 GB | 32 GB |
| RAM | 1 GB | 1 GB |
| Software & books | ||
| Platform | — | Own Linux-based system |
| Operating system | — | Linux |
| Supported formats | EPUB, PDF, MOBI, FB2, DJVU, CBZ, CBR, DOCX, DOC, RTF, TXT, HTML, CHM | EPUB, PDF, MOBI, FB2, DJVU, CBZ, CBR, DOCX, DOC, RTF, TXT, HTML, CHM |
| EPUB support | Yes | Yes |
| Text-to-speech | Yes | Yes |
| Audiobooks / audio playback | Yes | Yes |
| Connectivity & audio | ||
| Wi-Fi | Yes | Yes |
| Bluetooth | Yes | Yes |
| Mobile data (4G / LTE) | No | No |
| Built-in speaker | Yes | Yes |
| Performance | ||
| CPU clock | 1 GHz | — |
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