How big is the Xteink X4 Pocket eReader, and can I really hold it in one hand?

Absolutely! The Xteink X4 Pocket eReader is designed for ultimate portability. With its compact size, roughly the dimensions of a credit card stack but thinner, you can comfortably hold and operate it with a single hand, making it perfect for reading on the go, during commutes, or whenever you have a moment.

What kind of screen does the X4 have, and is it comfortable to read in bright sunlight?

The Xteink X4 Pocket features a glare-free E-Ink Carta HD screen. This technology mimics real paper, meaning no harsh backlight or screen reflections. It's incredibly comfortable to read on, even in direct sunlight, eliminating eye strain often associated with traditional screens.

How many books can I store on the Xteink X4, and how do I get books onto it?

The Xteink X4 Pocket comes with ample storage for thousands of books, ensuring you never have to leave your library behind. You can easily transfer books via Wi-Fi by connecting to cloud services or by using a USB-C cable to load your favorite titles from your computer.

Does the X4 Pocket support common e-book formats like EPUB or PDF?

Yes, the Xteink X4 Pocket eReader supports a wide range of popular e-book formats, including EPUB, MOBI, TXT, and PDF. This versatility means you can enjoy content from various sources without needing to convert your files.

What is the battery life like on the X4 Pocket eReader? Can it last for a long reading trip?

The Xteink X4 Pocket is engineered for exceptional battery efficiency. With its E-Ink display and optimized power management, you can expect weeks of reading on a single charge, making it your ideal companion for extended trips or busy reading schedules without the constant need to recharge.

Xteink X4 Pocket eReader - Space Black

Fast Shipping

Ship out within 1-5 business days

30-Day Return

Hassle-Free & 100% Risk-Free

One-Year Warranty

100% Authentic & Direct Support

Quick Support

support@xteink.com

Woman reading on ultra-thin eReader during commute, lightweight and portable design

Man reading on ultra-thin eReader inside tent at night, enjoying portable lightweight device

Ultra-thin eReader with paper-like display held beside laptop, ideal for modern readers

Person holding ultra-thin Xteink eReader in cozy bedroom lighting

Ultra-thin eReader with minimalist design, displaying inspirational text on e-ink screen for comfortable reading.

Featherlight 74G

White smartphone with eReader case displaying minimalist text design for reading on fingertips

Magnetic Back

Ultra-thin eReader being slipped into pocket, lightweight and portable for on-the-go reading

Pocket Size

16 GB

Storage

TXT/EPUB

Format

650mAh

Battery

219 PPi

Resolution

BMP/JPG

Image

Type-C

Charging

Ultra-thin eReader with minimalist design and motivational text display

Xteink X3

Ultra-thin eReader displaying minimalist text, ideal for modern readers seeking portable, eye-friendly reading.

Xteink X4

E-reader screen rotation icon for device orientation adjustment

3.7" E Ink Display

4.3" E Ink Display

Feather icon in circular design, symbolizing lightweight and elegant reading experience

Weight: 58g

Weight: 77g

Checkerboard pattern inside a circle, minimalist black and white design

PPI: 259

PPI: 219

Magnet with lightning bolts inside a circle

Ultra-thin eReader designs with minimalist camera layouts and paper-like screens

Optimized magnetic designfor wider phone compatibility

Ultra-thin eReader with paper-like display and minimalist design for modern reading

Magnetic design with limited compatibility

Clock and battery icon indicating long battery life for eReaders

Orange checkmark icon indicating approval or confirmation

Clock & Battery Indicator

Clock & Battery Indicator

Xteink X3

Xteink X4

Minimalist black line art icon with concentric circles and atomic-style center design

Gyroscope Shake-to-turn-page

Gyroscope

NFC symbol indicating wireless connectivity for modern eReaders

NFC

Fast charging icon with lightning bolt and battery symbol

Magnetic Pogo Pin (Cable included)

Type-C (Not included)

Four squares in a circle icon, minimalist design

Xteink APP Supported

Battery icon indicating power status for eReader devices

650 mAh Single charge on the eReader lasts up to 14 days, based on 1-3 hours of reading per day.

Xteink X4 ultra-thin eReader with packaging, screen protector, and accessories on white background

Display 4.3 inch

Resolution 220 PPI

Dimensions 114 × 69 × 5.9 mm (4.49" × 2.72" × 0.23")

Weight 77g

CPU ESP32

Storage Comes with 16 GB microSD card, supports expansion up to 256 GB

Connectivity Wi-Fi 2.4 GHz & Bluetooth® wireless technology

Ports USB-C

Physical Buttons Power Button, Page-Turn Buttons

Battery 650 mAh (*A single charge on the eReader lasts up to 14 days, based on 1–3 hours of reading per day.)

Supported Formats Document: EPUB, TXT / Image: JPG, BMP / Fonts: BIN

Color Options Space Black / Frost White

Languages English, Simplified Chinese, Traditional Chinese, and Japanese

Others Does not support 3rd-party Apps

Front light No

Touchscreen No

Battery 650 mAh(*A single charge on the eReader lasts up to 14 days, based on 1–3 hours of reading per day.)

Connectivity Wi-Fi 2.4 GHz

Ports USB Type-C

Physical Buttons Power Button, Page-Turn Buttons

1 × X4 E-Reader

1× Quick Start Guide

1× MicroSD Card

1× Matte Screen Protector

2× Magnetic Stick-on Rings

FAQs

Unlike phones or tablets, eReaders are designed purely for reading. The e-ink screen is easy on the eyes and perfectly visible under sunlight, the battery lasts for weeks, and the lightweight design makes it convenient to carry anywhere. For avid readers and learners, it’s a healthier and more focused way to enjoy books.

Xteink focuses on minimalist design and ultimate portability. The X4 fits right in your palm, weighing only 74g, yet holds thousands of books. With its true “paper-like” display and intuitive user experience, it’s built to make reading effortless, pure, and inspiring.

Absolutely. The X4 is about the size and weight of a smartphone, turning your pocket into a portable library. Whether you’re on the subway, at a café, or on a long flight, it transforms idle moments into quality reading time.

Yes. The X4 requires a magnetic ring to securely attach and pair with your phone.

No. A charging cable is not included in the box.

Item added to your cart

Xteink X4 Pocket eReader