Xteink X4 Pro challenges e-book DRM with $99 open-ecosystem reader

Chinese hardware manufacturer Xteink has launched the X4 Pro, a $99 pocket-sized e-reader aimed at consumers looking to bypass mainstream digital book platforms. Weighing 72 grams and measuring 5.95 mm thick, the device features a 4.26-inch screen equipped with a touchscreen and a front light. Xteink introduced these hardware additions in direct response to widespread user feedback regarding its previous models.

The X4 Pro positions itself in the market through an open-source approach to software and content management. Unlike dominant e-reader manufacturers, Xteink allows users to load open-source code directly onto the device. This enables readers to purchase unprotected .epub files directly from publishers and transfer them to the device using Wi-Fi, Bluetooth, or a removable micro SD card.

However, this open-ecosystem hardware comes with significant trade-offs regarding digital rights management. Users cannot integrate the X4 Pro with digital library applications like Libby, nor can they read e-books purchased from Amazon. Both platforms utilize protected file formats that prevent users from copying titles to third-party hardware.

From a design perspective, Xteink has also departed from industry standard connection methods. The X4 Pro relies on a magnetic pogo charger, replacing the USB-C port used by its predecessor. While the omission of USB-C may frustrate consumers prioritizing universal cables, Xteink notes the device requires infrequent charging; the battery retains 60% capacity after three weeks of daily use, even with the added front light active.

Available exclusively on Xteink’s website, the device highlights the challenges hardware manufacturers face when operating outside major content ecosystems. While the X4 Pro's ultra-portable design allows for flexible reading through screen taps or physical side buttons, its small screen and software limitations ensure it remains a niche alternative to mainstream e-readers.