The XTEINK X4 Classic Strips the Pocket E-Reader Down to Its Purest Form
At 4.9 millimeters thin with no touchscreen or frontlight, XTEINK’s refined micro reader—paired with a Pogo-pin dock and a magnetic book lamp—doubles down on tactile minimalism.
Printed inside the packaging of the new XTEINK X4 Classic is a simple, six-word manifesto: "Read more, scroll less, feel free." In an era of bloated smartphones and glowing tablets, micro e-readers have quietly carved out a devoted following by proving a counterintuitive point. Shrinking an E Ink screen down to the footprint of a credit card holder does not make reading harder; because the device disappears into a pocket and eliminates notifications, you actually finish more books than you ever would on a phone.
The XTEINK X4 Classic—essentially a second-generation refinement of the original X4—takes that minimalist philosophy and sharpens the hardware. Dressed in a stealthy Space Black finish, the difference in build quality is apparent the moment it comes out of the box. At just 4.9 millimeters thick and 68 grams, the Classic shaves a full millimeter off the original X4 and feels substantially lighter and sleeker in the hand than both its predecessor and the thicker, heavier X4 Pro. Yet inside that razor-thin chassis, XTEINK managed to upgrade the processor to an ESP32-S3 chip and boost the battery capacity from 650mAh to 920mAh, easily stretching endurance to weeks between charges.
That obsession with thinness comes with deliberate omissions. Unlike the X4 Pro, the X4 Classic has neither a touchscreen nor a built-in frontlight over its 4.3-inch, 219 PPI E Ink display. For e-paper purists, that is a feature rather than a compromise: with no extra optical layers dimming the panel, text renders with crisp, paper-like contrast—clarity best preserved by leaving the bundled screen protectors in the box. Navigation relies entirely on physical controls, which feel noticeably more solid this generation. Rather than the single-side rocker and front buttons of the original X4, the Classic adopts the clean side-button layout of the X3 and X4 Pro alongside a microSD slot.
Not every physical tweak is an unvarnished win, however. While XTEINK includes adhesive magnetic rings in the box and equipped the X4 Classic with noticeably stronger internal magnets, the repositioned magnetic array changes how the reader sits on a smartphone. Where the original X4 snapped cleanly onto the back of an ultra-thin phone like the iPhone Air without protruding, the X4 Classic—much like the X4 Pro—sits lower and overhangs the edge, even when inverted. The device also drops the original model's onboard USB-C port in favor of rear Pogo pins, bundling a tiny magnetic USB-C adapter dongle that unifies charging across the X3, X4 Classic, and X4 Pro.
That Pogo-pin transition makes much more sense once you pair the reader with XTEINK’s new companion accessories. The Space Black Base Stand has a reassuring, hefty weight that anchors any reader in the lineup on a desk, and slotting the magnetic Pogo-pin adapter into its base turns it into an effortless drop-in charging dock for the X3, X4 Classic, and X4 Pro. Meanwhile, the XTEINK Magnetic Reading Light solves the lack of a frontlight by snapping magnetically onto the top edge of the reader, cycling through three color temperatures including warm and cool light. Instead of feeling archaic, reading in bed under a tiny warm lamp makes the digital device feel remarkably like an old-fashioned paperback.
On the software front, XTEINK’s native Licorice firmware has matured into a clean, capable reader right out of the box. Still, for enthusiasts, the real magic of the X4 Classic’s open architecture is the ability to flash community-built firmware like CrossPoint within minutes. Thinner, lighter, and unapologetically tactile, the XTEINK X4 Classic proves that sometimes the best way to move reading tech forward is to strip almost everything else away.
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