Open Book Touch: open-source e-reader
hackernews
| Open Book Touch | Xteink X4 | Kindle | Kobo Clara BW | Boox Go 6 | |
|---|---|---|---|---|---|
| Display size | 4.26" | 4.3" | 6" | 6" | 6" |
| Resolution | ~220 ppi | ~220 ppi | 300 ppi | 300 ppi | 300 ppi |
| Touchscreen | Yes | No | Yes | Yes | Yes |
| DRM | None | None | Yes | Yes | Varies |
| Book formats | EPUB, TXT | EPUB, TXT | Kindle formats | EPUB, PDF, MOBI, TXT, HTML, RTF, CBZ, CBR, KEPUB | EPUB, PDF, MOBI, TXT, HTML, RTF, CBZ, CBR, AZW3, DJVU, DOC, DOCX |
| Frontlight | Warm + cool | No | Cool only | Warm + cool | Warm + cool |
| User-replaceable battery | Yes | No | No | Yes (kit required) | No |
| Expandable storage (microSD) | Yes | Yes | No | No | Yes |
| Local Wi-Fi book transfer | Yes (browser, no account) | Yes (companion app) | No | No | Yes (BooxDrop) |
| Waterproof | No | No | No | Yes (IPX8) | No |
| Open source (HW + SW) | Yes | No (community firmware only) | No | No | No |
| Account required | No | No | Yes (Amazon) | Yes (Kobo) | Optional |
| Runs custom code | Yes | Yes (community firmware) | No | No | Yes (Android apps) |
| Price (USD) | $149 | $69 | $130 | $160 | $150 |
Source: hackernews