Coming July 2026 (intl)
Xteink S4
The Android pivot — sideload Kindle, Kobo, anything.
Xteink's first Android model. Android 11 means you can sideload Kindle, Kobo, or any reading app — a clean break from the ESP32-based X3/X4 — and it adds a front light for the first time. Launched in China; an international release is expected around July 2026. Specs below are press-reported and community-consistent but not yet on xteink.com.
CNY 339 (~$50) · ~$70 intl est.
*
Specs
| OS / platform | Android 11 * |
|---|---|
| Screen | 4.3" E Ink * |
| Resolution | Not disclosed ? |
| Front light | Yes (adjustable temp) * |
| Touchscreen | Not disclosed ? |
| Chip | Not disclosed ? |
| Storage | 32 GB + microSD · 2 GB RAM * |
| Charging | USB-C * |
| Battery | 1,400 mAh * |
| Weight | 95 g * |
| Thickness | 6.98 mm * |
| Magnetic mount | Yes (to phone) * |
No mark Confirmed on xteink.com
*
Press-reported, not yet on the official store
?
Rumored / unconfirmed
Where to follow it
The Xteink S4 isn't on xteink.com yet. These are the sources we're tracking it from — open them for the latest.
Compare with the lineup
See the S4 next to X3, X4, X4 V2 Pro in the full comparison table →