XTEINK X3 Developer Edition is a compact 3.7-inch E-Ink pocket e-reader with a magnetic back, physical page-turn buttons and a 259 PPI display. Its 58 g weight and 5.1 mm body make it easy to carry for focused reading on the move. This listing is for the X3, not the X4, X4 Pro or X4 Classic.

Key features - 3.7-inch E-Ink display, 259 PPI - Dimensions: 97.6 x 63.7 x 5.1 mm; weight: 58 g - 650 mAh battery; magnetic Pogo Pin charging - 2.4 GHz Wi-Fi and Bluetooth - microSD storage expansion up to 256 GB - Physical page-turn buttons and gyroscope-assisted shake-to-turn control - Built-in NFC for unencrypted access-card simulation; not payment-card support - No touchscreen or built-in frontlight

Choose your configuration Black: standalone US$62.00, or with a tempered glass screen protector US$65.62. White: standalone US$65.00, or with a tempered glass screen protector US$68.74. Select the exact color and configuration when requesting an order.

Reading and transfer EPUB and TXT documents, JPG and BMP images, and BIN fonts are supported. Use the official XTEINK app for file transfer; the X3 is not an Android device and does not support third-party apps.

Availability and firmware Stock quantity, included accessories, delivery time and firmware/language requirements must be confirmed with HONGTE before ordering. Developer Edition is the supplier's listing designation; confirm any firmware flashing requirement before purchase. Manufacturer guarantees covering purchases directly from xteink.com do not automatically apply to this listing. Product and accessory pictures do not establish current inventory or guarantee every pictured accessory is included.