| Name | Xteink X4 | Obook 5 |
|---|---|---|
| Image |  |
 |
| MSRP | $69 | $109.99 |
| Released | 2025 | 2025 |
| Availability | Available | Available |
| Current price | Xteink, AliExpress | Amazon |
| Display specifications | ||
| Display type | E Ink | E Ink |
| Display size (inch) | 4.3 | 4.26 |
| Resolution (pixels W×H) | 480×800 | 480×800 |
| Color display? | No | No |
| Pixel density | 220 PPI | 219 PPI |
| Screen light? | No | Yes |
| Adjust color temperature? | NA | No |
| Auto-rotate? | ❌ | ❌ |
| Input options & features | ||
| Touchscreen | ❌ | ✔ |
| Button controls? | ✔ Page-turn (2×), Back, OK | ✔ Page-turn/volume |
| Stylus input | ❌ | ❌ |
| Dark mode | ✔ | ✔ |
| Audiobooks | ❌ | ✔ |
| Connectivity | ||
| Bluetooth | ❌ | ❌ |
| Wi-Fi? | Wi-Fi 4 | Wi-Fi 4 |
| Cellular network | ❌ | ❌ |
| Software | ||
| Operating system | Custom OS | Custom OS |
| Reading apps & e-book shops | TXT/EPUB reader | DOC/PDF/TXT/EPUB reader |
| Web browser? | ❌ | ❌ |
| Email app? | ❌ | ❌ |
| Dropbox & Google Drive? | ❌ | ❌ |
| Hardware specifications | ||
| Internal storage | 32 GB ⓘ | 32 GB |
| RAM | 128 MB | ? |
| CPU clock speed | ? | ? |
| Other built in: | MagSafe magnet | Speaker, microphones |
| Ports & battery | ||
| MicroSD card reader? | ✔ | ❌ |
| 3.5 mm AUX out port? | ❌ | ✔ |
| HDMI port? | ❌ | ❌ |
| Battery capacity (3.7V) | 650 mAh | 1200 mAh |
| USB (charging) port | USB-C | USB-C |
| Physical specifications | ||
| Waterproof? | No | No |
| Size (cm H×W×D): | 11.4×6.9×0.59 | 12.5×7.0×0.825 |
| Weight (gram): | 74 | 94 |
| Size (inch H×W×D): | 4.49×2.72×0.23 | 4.92×2.76×0.32 |
| Weight (oz): | 2.61 | 3.17 |
| Screen: flush or recessed? | Flush | Flush |
| Color options: | Black, white | Blue |
| Accessories in the box | 32 GB microSD card, screen protector, MagSafe ring stickers | Lanyard, case |
| More information | ||
| Model number | X4 | ? |
| User guide / manual | User Guide | Not available |
| Official site link: | Xteink | Not available |
Xteink X4 vs Obook5
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