Ultra-compact Xteink X3 shuns USB-C charging

The tiniest e-reader just shrank—and it charges with a magnet, not USB-C.

In hands-on tests, the Xteink X3 emerges as the new poster child for pocketable tech: a device that’s millimeter-thin, dozens of millimeters narrower, and over half an inch shorter than its already-small sibling, the X4. At credit-card size, it finally fits in a tight pocket or a slim wallet—if you decide you’re happy constraining your reading device to be that project-size companion. The X3 isn’t just smaller; testers note it’s also smarter about the basics, with a refined software layer, more straightforward buttons, and a back that now uses magnets for mounting. The result, for a subset of readers, is a genuinely portable e-reader that you won’t notice when it’s tucked away in your bag.

The catch? Its charging method. Where most e-readers cling to USB-C for universal access to power, the X3 relies on a magnetic pogo-pin connector. In plain terms: you’ll need a compatible cradle or dock to recharge, rather than just plugging in a cable anywhere in a hurry. The Verge frames this as a “tragic flaw” for anyone who travels light or hates chasing accessory ecosystems. The X3’s magnetic back is improved over the X4, but the charging reality remains the same: you’re tethered to a specific charging setup rather than the familiar USB-C convenience. In hands-on reviews, testers describe the pogo-pin system as clean and unobtrusive when docked, but inconvenient on the go when you’re juggling a charger or if you misplace the cradle.

That magnet-forward approach bleeds into everyday usability. The X3’s creators clearly leaned into portability at the software and hardware level: a slimmer chassis, simpler controls, and a back that can magnetically mount to compatible surfaces or accessories. Yet, as testers put it, the software still isn’t the device’s strongest suit. The X3 represents an upgrade over the X4, but the operating system and app polish lag behind the best in class. For light readers who prize a minimal, distraction-free interface, that gap may be acceptable; for power users who want features and snappy interactions, it could feel undercooked.

Pricing and ongoing costs remain conspicuously absent from early coverage. The Verge piece notes only improvements and caveats, not a price tag or any subscription model tied to the X3. That omission matters for a device marketed on ultimates: ultimate portability at the expense of universal charging and potentially limited ecosystem access. Without price transparency, buyers must weigh the value of pocketability against the friction of a nonstandard charger—and the potential trouble of sourcing a compatible dock if one isn’t included.

Against a backdrop of larger e-readers that have become near-standards—think USB-C charging, familiar screens, and broad library support—the X3 catapults itself into a niche: readers who want the lightest, most portable device possible, even if it means forfeiting universal charging and a more mature software experience. The obvious alternative—for most buyers—remains the mainstream Kindle Paperwhite or similar devices, which offer USB-C charging, established ecosystems, and a more robust software polish, at the obvious cost of bulk.

Two practical takeaways for potential buyers:

If you prize true pocketability above all else and are comfortable carrying a single charging dock, the X3 offers a compelling, ultra-slim form factor.

If you value universal charging, broad app ecosystem, and worry about accessory sanity while traveling, you’ll likely prefer a more conventional e-reader now.

Verdict: wait for published pricing and official accessory details before pulling the trigger. The X3 is intriguing for its size and modest design improvements, but the magnet-based charging and software caveats keep it in “wait for hands-on value” territory until more information surfaces.

Pricing and setup notes:

Full price with all subscription fees broken out: not disclosed in the source material.

Setup time and difficulty: straightforward—power on, connect to Wi-Fi, and start reading; charging requires the compatible magnetic cradle.

Who should buy vs. who should skip: buy if you want the smallest possible reader and don’t mind a dedicated charger; skip if you rely on USB-C charging and a mature app experience.

Head-to-head: the obvious alternative is a standard USB-C e-reader like the Kindle Paperwhite, which offers broader ecosystem support and easier charging, albeit with a larger footprint.

Sources

This even smaller credit card-sized e-reader has one tragic flaw