A new category of pocket-sized e-ink readers has emerged in 2026, led by Xteink's X3 and X4 models, competing not with traditional e-readers but with smartphones by offering distraction-free reading during brief moments like checkout lines. These devices use magnetic phone-case attachment and stripped-down designs to optimize for quick reading sessions rather than hours of use, though some manufacturers like Xteink have begun restricting custom firmware despite community expectations for openness.
Boox has announced the Picco, a 3.97-inch microreader with USB-C, touchscreen, 16GB expandable storage, and a custom lightweight OS running on ESP32. Priced at $99 USD and €109.99 with a category-leading 2-year EU warranty, it competes directly with the XTEINK X4 Pro but lacks an app store and third-party app support.
A reader troubleshoots display bugs on a cheap Xteink X3 e-ink device running CrossPoint firmware, discovering issues with greyscale rendering and ghosting artifacts, then investigating mysterious vertical stripes that appear in images but not in the source files.
The Xteink X3, a $70 credit-card-sized e-reader that attaches to phones, has become unexpectedly popular for increasing reading habits. Despite being plasticky and bare-bones, its small screen creates addictive page-turning similar to social media, and users are customizing it with firmware and accessories to enhance functionality.
Xteink announced plans to include USB-C ports on future e-reader devices after facing significant user backlash over their current reliance on pogo pins for charging. The company stated they will develop multiple product lines catering to different user preferences, including feature-rich models with front lights and touchscreens, while continuing to explore thinner designs.