Launched July 21, 2026
Xteink X4 Pro
The upgrade pick — front light and touchscreen for $99.
The X4 plus its two most-requested features: an adjustable warm/cool front light and a touchscreen (side buttons kept). It's 72 g with a bigger 1,100 mAh battery, but charges over pogo-pin, not USB-C. It runs Xteink's non-Android XTOS; the Android model is the S4, despite the old 'V2 Pro' name.
Specs
| OS / platform | XTOS (non-Android) |
|---|---|
| Screen | 4.3" E Ink, 219 PPI |
| Resolution | 219 PPI |
| Front light | Yes — adjustable brightness + warm/cool |
| Touchscreen | Yes + side page-turn buttons |
| Chip | Not disclosed ? |
| Storage | 16 GB microSD, exp. 256 GB |
| Charging | Magnetic pogo-pin |
| Battery | 1,100 mAh |
| Dimensions | 111 × 69 × 5.95 mm |
| Weight | 72 g |
| Thickness | 5.95 mm |
| Magnetic mount | Yes — built-in magnetic backplate |
Get more out of it
- Accessories that fit the X4 Pro — cases, lights, screen protectors.
- Guides — setup, firmware, and getting books on it.
- Firmware — CrossPoint and the community builds.
Compare with the lineup
Put the X4 Pro side by side with X3, X4, S4 — add or drop any device and see the specs and colours line up.