The Xteink X4 brings a different kind of screen to your phone one that’s low-power, glare-free, and surprisingly useful. This 4.3-inch e-reader attaches magnetically to iPhones via MagSafe, turning your device into a pocket-sized display hub for far more than just novels.
Xteink X4 clicks into place, literally
At just 74 grams, the Xteink X4 is lighter than most wallets. It measures 114 x 69 x 5.9 mm, making it barely thicker than a case. Despite its slim profile, it includes WiFi, Bluetooth, and 32 GB of microSD storage. There’s no heavy-duty processor here just an ESP32 chip common in DIY hardware. That tradeoff helps the 650 mAh battery last up to two weeks if you use it a couple of hours per day.
It doesn’t rely on touch controls. Instead, a pair of physical side buttons lets you flip through pages or switch screens. The 4.3-inch panel runs at 220 PPI, which is plenty sharp for text, though the compact size means frequent tapping.
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It’s more than a book reader
Reading novels is just one of its tricks. The Xteink X4 can show boarding passes, QR codes, calendars, or ID cards. Whether you’re heading through airport security or checking your gym access, the device handles it without draining your phone’s battery.
Here’s what it can display:
- ePUB and TXT files
- BMP and JPG images
- QR codes and barcodes
- Digital passes (e.g., boarding, entry)
- Schedules and lists
Minimal by design
This isn’t trying to replace your Kindle or your phone; it works best as a flexible, always-visible mini screen. The lack of a touchscreen may feel limiting, but the physical buttons keep interactions direct and battery-friendly. For $69, it’s a niche product with practical appeal.
A different kind of phone companion
Not every idea needs an app. The Xteink X4 finds a quiet middle ground between analog and smart. It’s a screen with a purpose and no distractions.
