Xteink’s micro e-readers are the smallest on the market, designed to clip onto your phone. The Xteink X4 Pro offers a more smartphone-like experience with a touchscreen and home button, yet it remains surprisingly compact.

However, users must bring their own books as there's no built-in shop. Loading EPUB files or URLs is quick but requires organisation. Despite its small screen, the device features clear text thanks to a 4.3-inch display and dual-tone front light, making reading comfortable even in low light.

The Xteink X4 Pro’s design is both charming and functional, challenging traditional e-reader expectations. Its ease of navigation and compact size make it an ideal portable companion. However, for those who prefer a seamless experience where books are readily available, this might be a step back from the convenience of dedicated e-readers.

Still, whether you’re looking to save space or simply want something cute to clip onto your phone, the Xteink X4 Pro is a fun option. Just remember to pack your literature!