The Xteink X4 Classic and Xteink X4 Pro are both ultra-portable 4.3-inch E-Ink pocket e-readers, but they are built for different reading styles and environments.
Key Differences
Display & Clarity
• X4 Classic: Lacks a touchscreen and a front light layer, making its E-Ink screen brighter, whiter, and crisper ("text really pops off the screen").
• X4 Pro: Includes an additional touch layer and a built-in, dual-temperature adjustable front light (warm/cool). This makes the screen slightly darker/less crisp side-by-side, but essential for reading in dim or dark spaces.
Navigation & Controls
• X4 Classic: Uses pure physical/mechanical buttons (front and side page-turn buttons) for a distraction-free experience.
• X4 Pro: Combines a capacitive touchscreen with physical page-turn buttons and dictionary/clipping features.
Size & Weight
• X4 Classic: Thinner and lighter at roughly 4.9mm thick and 68g.
• X4 Pro: Slightly thicker and heavier at roughly 5.95mm thick and 72g.
Battery & Power
• X4 Classic: Features a 920 mAh battery.
• X4 Pro: Features a larger 1,100 mAh battery to account for power used by the front light.
Charging
• Both models use magnetic pogo-pin connectors rather than a direct built-in USB-C port on the device body (requiring a magnetic adapter/cable).
Hardware & Storage
• Both share 16GB of internal storage plus a microSD card slot, Wi-Fi, Bluetooth, and support standard formats like EPUB, TXT, MOBI, and PDF. The X4 Pro uses a faster ESP32-S3 dual-core chip with 8MB RAM for snappier image handling and indexing.
Colorways & Pricing
• X4 Classic: Available in space black and mist gray.
• X4 Pro: Retails around $99 when in stock, though availability fluctuates.
Which one should you choose?
• Choose the X4 Classic if: You mostly read in daytime, natural light or bright outdoor environments, and you prefer the crispest possible E-Ink display, physical buttons, and a slightly slimmer build.
• Choose the X4 Pro if: You need to read at night, under the covers, or in unpredictable lighting where a front light and touchscreen are necessary. You can check current model details or availability via the Xteink Product Comparison Page.
