The Xteink X3 is a compact, MagSafe-compatible e-ink reader that attaches magnetically to the back of an iPhone, designed to offer a dedicated reading experience and potentially reduce doomscrolling. Priced at $80, the device has a 3.7-inch screen and uses a magnetic charger (no USB-C port), unlike the larger X4 model. The X3 ships with clunky firmware, but a community-made, free, open-source alternative called CrossPoint is available and relatively easy to install with online instructions.
What it does
The X3 magnetically attaches to the back of a phone like a Pop Socket. It can also be carried in a pocket or purse. The device holds hundreds of books via .epub files transferred over Wi-Fi from a phone or computer. It has no apps, no touch screen, and no internet browser — it is a "dumb" e-reader. Users can add custom screensavers.
Tradeoffs
- Charging: The X3 uses a proprietary magnetic charger, not USB-C. Battery life is excellent — after two weeks of consistent use, charge dropped from 100% to 96%.
- File compatibility: The X3 cannot legally read library ebooks from Libby or books from Amazon's Kindle store, because those use protected file formats. Users must load unprotected .epub files, such as public-domain books or files created with Calibre.
- Firmware: The stock firmware is clunky but functional. The CrossPoint open-source firmware is a significant improvement and is free.
- Size: The X3 fits standard-sized iPhones (tested with iPhone 16). The previous X4 model only fit larger phones like the iPhone Pro Max.
When to use it
The X3 is best for reading in short bursts — waiting in line, on public transit — as an alternative to opening social media. It does not replace a Kindle for long-form reading or library borrowing. The device requires some manual file management and a willingness to use open-source firmware for the best experience.
Bottom line
The Xteink X3 can help you read more if you make a conscious effort to use it. It is not a magic fix for doomscrolling, but it provides a distraction-free reading option that fits in a pocket. The lack of Libby and Kindle support is a real limitation, but the device's simplicity and long battery life make it a useful tool for readers willing to source their own .epub files.