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Bigme B751C S Ebook Reader, vs XTEINK X4 E-Book Reader, 4.3" Portable Pocket

Updated July 2026 — Bigme B751C S Ebook Reader, wins on storage and size, XTEINK X4 E-Book Reader, 4.3" Portable Pocket wins on price and weight.

The Bigme B751C S offers advanced features and a larger display, while the XTEINK X4 excels in portability and affordability.

Why Bigme B751C S Ebook Reader, is better

Storage

Bigme has 64GB vs XTEINK's 16GB.

Display

Bigme features a 7-inch color display.

Functionality

Bigme runs Android OS for app support.

Why XTEINK X4 E-Book Reader, 4.3" Portable Pocket is better

Price

XTEINK is $69 vs Bigme's $265.

Weight

XTEINK weighs only 2.72 oz.

Battery Life

XTEINK lasts up to 14 days.

Overall score

Bigme B751C S Ebook Reader,
85
XTEINK X4 E-Book Reader, 4.3" Portable Pocket
70

Specifications

SpecBigme B751C S Ebook Reader,XTEINK X4 E-Book Reader, 4.3" Portable Pocket
Display Size7 inches4.3 inches
Storage64GB16GB
OSAndroid 14N/A
WeightN/A2.72 oz
Battery LifeN/A14 days

Dimension comparison

Bigme B751C S Ebook Reader,XTEINK X4 E-Book Reader, 4.3" Portable Pocket

Design and Portability

The XTEINK X4 E-Book Reader is designed for portability, being ultra-thin at just 0.23 inches and weighing only 2.72 oz. In contrast, the Bigme B751C S provides a larger display at 7 inches but is bulkier and heavier, which may affect its portability for some users. The lightweight nature of the XTEINK makes it easy to slip into a pocket or bag, making it ideal for commuters or travelers who need a device that can be easily carried around. On the other hand, the Bigme offers a more substantial reading experience with its larger screen, appealing to those who prefer a bigger display for reading eBooks.

Display Quality

The display quality differs significantly between the two devices. The Bigme B751C S features a 7-inch color E-Paper display that is designed to be eye-friendly and glare-free, making it suitable for reading in various lighting conditions. Meanwhile, the XTEINK X4 offers a smaller 4.3-inch E-Ink display that provides a natural paper-like reading experience. While the smaller screen of the XTEINK may be easier on the eyes for extended reading sessions, the color display of the Bigme enhances the visual experience, especially for documents that include graphics or images.

Storage Capacity

When it comes to storage, the Bigme B751C S has a significant advantage with 64GB of internal storage, expandable up to 1TB via a TF Card slot. This offers ample space for a vast library of eBooks, documents, and media. In contrast, the XTEINK X4 comes with 16GB of built-in storage, which is still sufficient for thousands of books but lacks the expandable option. For users who have extensive libraries or prefer to store various files and applications, the Bigme’s storage capabilities may be more appealing.

User Experience

The user experience differs notably between the two e-readers. The Bigme B751C S runs on Android 14 OS, allowing users to install various applications, which can enhance productivity beyond just reading. Additionally, it comes with a stylus for note-taking, enabling users to convert handwritten notes to text, making it an excellent choice for students or professionals. On the other hand, the XTEINK X4 focuses on a distraction-free reading experience, featuring physical page-turn buttons and a design that minimizes interruptions. This makes it ideal for users who want a straightforward eReading experience without additional features.

Battery Life

Battery life is another critical aspect where the XTEINK X4 excels. It boasts a long-lasting 14-day battery life based on typical usage, allowing users to enjoy extended reading sessions without frequent charging. The Bigme B751C S does not specify its battery life, which may lead to uncertainty regarding how long it can last between charges. For users prioritizing battery longevity, the XTEINK X4’s performance is an attractive feature, ensuring that readers can stay immersed in their books for longer periods.

Price Point

When considering price, the XTEINK X4 is significantly more affordable at $69.00, which is about 74% cheaper than the Bigme B751C S, priced at $265.05. This substantial price difference makes the XTEINK a more accessible option for budget-conscious consumers or those who primarily need a simple e-reader for casual reading. On the other hand, the higher price of the Bigme reflects its advanced features, larger display, and additional functionalities, appealing to users who are willing to invest more for a comprehensive e-reading experience.

Bestselling Status

In terms of sales rank, the XTEINK X4 is performing notably well with a bestseller rank of 887, indicating its popularity among consumers. The Bigme B751C S has a sales rank of 65,746, suggesting it may not have achieved the same level of market traction. The XTEINK's higher sales rank could imply greater user satisfaction or preference in the e-reader market, particularly for those seeking a compact and easy-to-use device.

Which should you buy?

Choosing between the Bigme B751C S and the XTEINK X4 ultimately depends on your personal reading needs and preferences. If you prioritize an expansive storage space, a larger color display, and the ability to run various applications, the Bigme B751C S is the better choice despite its higher price. However, if you are looking for a lightweight, portable e-reader with a straightforward design and excellent battery life at a fraction of the cost, the XTEINK X4 is an ideal option. Consider your reading habits, desired features, and budget to make the best decision for your e-reading experience.