The Ultimate Pocket-Sized E-Reader: Meet the Xteink X4 Pro
TL;DR
- The Xteink X4 Pro (also called X4 V2 Pro) launches at $99, adding the two most requested features to the original X4: a touchscreen and an adjustable warm-to-cool front light.
- Despite the new layers, the device is thinner (5.98mm) and lighter (72g) than the predecessor, with a boosted 1,100 mAh battery and 16 GB storage (expandable via microSD).
- The device runs Xteink’s proprietary XTOS (non-Android) for a distraction-free experience, features built-in magnets for Qi2 phone attachment, and is currently sold out at launch with US shipping expected by late July 2026.
The Ultimate Pocket-Sized E-Reader: Meet the Xteink X4 Pro
For years, minimalist e-reader enthusiasts have been stuck with a frustrating trade-off: choose the ultra-portable Xteink X4 for its pocket-sized form factor, or choose a larger device for a touchscreen and front light. Xteink has finally bridged this gap with the Xteink X4 Pro (also known as the X4 V2 Pro or X4P), a $99 device that packs modern reading features into a 72-gram body without sacrificing its "cult" portability.
The Missing Features Are Finally Here
The X4 Pro is a direct response to widespread user feedback, specifically targeting the two biggest shortcomings of the original X4: the lack of a touchscreen and the absence of a built-in light. The new model introduces a 4.3-inch E-Ink touchscreen with a resolution of 220 PPI, allowing users to turn pages by tapping the screen rather than relying solely on physical buttons.
Complementing the touch interface is the device's most anticipated upgrade: a bicolor front light that adjusts from warm to cool tones. This feature allows for comfortable reading in low-light environments or at night without needing a separate clip-on lamp, a significant convenience upgrade for travelers and commuters.
Slimmer Design, Bigger Battery
Contrary to the expectation that adding a touchscreen and light would bulk up the device, the X4 Pro is actually thinner than its predecessor. At just 5.98mm, it is 0.42mm thinner than the original X4's 6.4mm chassis, while maintaining the same ultra-light 72-gram weight.
Power has also been significantly upgraded to support the new features. The battery capacity has jumped from 650 mAh to 1,100 mAh, promising extended reading sessions despite the added power draw of the front light and touch sensors. Users can expect battery life to hold steady at around 14 days per charge under normal usage conditions.
Distraction-Free Software and Smart Connectivity
Unlike some competitors pivoting toward Android, the X4 Pro runs on XTOS, Xteink’s proprietary non-Android operating system. This ensures the device remains a distraction-free entity, ideal for readers who want to avoid social media notifications and app bloat. The OS includes a substantial built-in library, cloud sync capabilities, and supports standard formats like EPUB and TXT.
Storage comes with 16 GB of fixed internal memory, which is expandable via a microSD card up to 256 GB. A unique "smart" feature is the inclusion of built-in magnets, allowing the X4 Pro to attach securely to the back of Qi2-compatible smartphones (such as the HMD Skyline). This enables users to display business cards, calendars, or boarding passes on the E-Ink screen, which retains the last image even when the battery is depleted.
Availability and Launch Status
The Xteink X4 Pro is priced at $99 (plus $8 for shipping) and was announced for a US launch in late July 2026. While the device is currently listed as sold out on the manufacturer’s online store, US regulatory clearance has been applied for, confirming a confirmed release in the United States.
The device is already available in China, with international shipping estimates ranging between $69 and $70 depending on the region. For those eager to secure a unit, the recommendation is to monitor Xteink’s official store for restocks, as the initial launch inventory has been quickly exhausted.
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