--- source_url: "https://www.xteink.com/products/xteink-x4" title: "Xteink X4 Pocket eReader - Space Black | Buy Now" mirrored_at: 2026-08-12T13:03:04.655Z host: www.xteink.com cited_in_42a: true mirror_canonical: "https://index.42a.ai/www.xteink.com/products/xteink-x4" --- > **Original source:** https://www.xteink.com/products/xteink-x4 ![Fast Shipping](https://www.xteink.com/cdn/shop/files/delivery--parcel_1_1.svg?v=1757182400&width=200) Fast Shipping Ship out within 1-5 business days ![Free 30-Day Return](https://www.xteink.com/cdn/shop/files/Free_30-Day_Return-1.svg?v=1757182401&width=200) 30-Day Return Hassle-Free & 100% Risk-Free ![One-Year Warranty](https://www.xteink.com/cdn/shop/files/tools_1.svg?v=1757182400&width=200) One-Year Warranty 100% Authentic & Direct Support ![Quick Support](https://www.xteink.com/cdn/shop/files/tools_2.svg?v=1757182401&width=200) Quick Support support@xteink.com ![Ultra-thin eReader displaying minimalist text, lightweight portable design for comfortable reading](https://www.xteink.com/cdn/shop/files/Spec..png?v=1782380942&width=800) Featherlight 74G ![White smartphone with eReader case displaying minimalist text, ideal for reading on the go.](https://www.xteink.com/cdn/shop/files/MAGSAGE-02.jpg?v=1782380945&width=800) Magnetic Back ![Ultra-thin eReader being slipped into pocket, lightweight and portable for easy reading on the go](https://www.xteink.com/cdn/shop/files/278891757526357_.pic_hd.jpg?v=1782380894&width=800) Pocket Size ![Ultra-thin 4.3-inch eReader with slim 0.23-inch profile, lightweight portable design for easy reading](https://www.xteink.com/cdn/shop/files/750x1050.png?v=1782380876&width=800) ![Minimalist eReader icon with ultra-thin design, paper-like screen, lightweight portable reading device](https://www.xteink.com/cdn/shop/files/icon-01_ecd382ef-8dc5-4b51-bfce-fa74ab9f833e.png?v=1782380930&width=200) 16 GB Storage ![Ultra-thin eReader icon with arrow indicating portability and easy navigation for digital reading](https://www.xteink.com/cdn/shop/files/icon-04_91a9c038-cfaf-474e-a3d8-f060715a5896.png?v=1782380936&width=200) TXT/EPUB Format ![Simple icon of a terracotta-colored eReader with handle, minimalist design](https://www.xteink.com/cdn/shop/files/icon-06_fb833c8f-3165-43a2-8149-17488dc8bd9d.png?v=1782380935&width=200) 650mAh Battery ![Checkerboard pattern with alternating terracotta and white squares](https://www.xteink.com/cdn/shop/files/icon-02_6507b757-1ce1-41bd-91f1-af672f3a7ddb.png?v=1782380931&width=200) 219 PPi Resolution ![Placeholder image icon for eReader product display](https://www.xteink.com/cdn/shop/files/icon-05_2755cd63-c256-42a1-a25e-226ccab46911.png?v=1782380933&width=200) BMP/JPG Image ![Battery icon with lightning bolt, indicating fast charging or power for eReader devices](https://www.xteink.com/cdn/shop/files/icon-03_65bdec5a-b9cc-4ed7-b0d9-7a078a96b60f.png?v=1782380934&width=200) Type-C Charging ![Rotate screen icon: device with diagonal arrows inside circle for orientation adjustment](https://www.xteink.com/cdn/shop/files/Icons-01.png?v=1782381055&width=80) 3.7" E Ink Display 4.3" E Ink Display ![Feather icon in circle, symbolizing lightweight eReader design](https://www.xteink.com/cdn/shop/files/Icons-02.png?v=1782381053&width=80) Weight: 58g Weight: 77g ![Checkerboard pattern inside circular frame with curved arrow](https://www.xteink.com/cdn/shop/files/Icons-03.png?v=1782381053&width=80) PPI: 259 PPI: 219 ![Circular icon with lightning bolt symbol, indicating fast charging or power feature](https://www.xteink.com/cdn/shop/files/Icons-04.png?v=1782381054&width=80) ![Ultra-thin eReader designs with minimalist camera layouts and paper-like displays](https://www.xteink.com/cdn/shop/files/Icons-08.png?v=1782381061&width=200) Optimized magnetic designfor wider phone compatibility ![Ultra-thin eReader device with paper-like display, lightweight and portable design for easy reading](https://www.xteink.com/cdn/shop/files/Icons-09.png?v=1782381060&width=200) Magnetic design with limited compatibility ![Clock and battery icon showing long battery life for eReader devices](https://www.xteink.com/cdn/shop/files/Icons-05.png?v=1782381052&width=80) ![Orange checkmark icon indicating confirmation or success](https://www.xteink.com/cdn/shop/files/Icons-06.png?v=1782381063&width=200) Clock & Battery Indicator ![Orange X icon on white background](https://www.xteink.com/cdn/shop/files/Icons-07.png?v=1782381062&width=200) Clock & Battery Indicator ![Abstract circular line art design with concentric rings and central geometric pattern](https://www.xteink.com/cdn/shop/files/Icons-10.png?v=1782381056&width=80) ![Orange checkmark icon indicating confirmation or success](https://www.xteink.com/cdn/shop/files/Icons-06.png?v=1782381063&width=200) Gyroscope Shake-to-turn-page ![Orange X icon on white background](https://www.xteink.com/cdn/shop/files/Icons-07.png?v=1782381062&width=200) Gyroscope ![NFC symbol with wireless signal waves in a circle, indicating contactless connectivity feature](https://www.xteink.com/cdn/shop/files/Icons-11.png?v=1782381058&width=80) ![Orange checkmark icon indicating confirmation or success](https://www.xteink.com/cdn/shop/files/Icons-06.png?v=1782381063&width=200) NFC ![Orange X icon on white background](https://www.xteink.com/cdn/shop/files/Icons-07.png?v=1782381062&width=200) NFC ![Fast charging icon with lightning bolt, indicating quick power for eReader devices](https://www.xteink.com/cdn/shop/files/Icons-12.png?v=1782381057&width=80) Magnetic Pogo Pin (Cable included) Type-C (Not included) ![Circular icon with four rounded squares, one rotated, in minimalist black line art design](https://www.xteink.com/cdn/shop/files/Icons-13.png?v=1782381060&width=80) Xteink APP Supported Xteink APP Supported ![Battery icon indicating power status for eReader device](https://www.xteink.com/cdn/shop/files/Icons-14.png?v=1782381059&width=80) 650 mAh Single charge on the eReader lasts up to 14 days, based on 1-3 hours of reading per day. 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](https://www.xteink.com/cdn/shop/files/what_s_in_the_box_xteink.jpg?v=1782380958&width=1100) **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× eReader Adhesive Metal Ring** 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. Please use a locally certified safety-compliant charger to ensure charging safety.