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Bigme B7 Pro Color e-Reader, E-Ink ePaper Tablet vs PocketBook InkPad 4 | Eye-Friendly Audio & E-Book

Updated August 2026 — Bigme B7 Pro Color e-Reader, E-Ink ePaper Tablet wins on storage and display, PocketBook InkPad 4 | Eye-Friendly Audio & E-Book wins on audio and durability.

The Bigme B7 Pro offers superior performance and features, while the PocketBook InkPad 4 excels in audio capabilities and durability.

Why Bigme B7 Pro Color e-Reader, E-Ink ePaper Tablet is better

Display Quality

Bigme has a vibrant color display.

Storage

Bigme offers 256GB storage compared to PocketBook.

Connectivity

Bigme includes 4G connectivity.

Why PocketBook InkPad 4 | Eye-Friendly Audio & E-Book is better

Audio Features

PocketBook has built-in speaker and Text-to-Speech.

Durability

PocketBook is IPX8 waterproof.

Price

PocketBook is significantly cheaper.

Overall score

Bigme B7 Pro Color e-Reader, E-Ink ePaper Tablet
85
PocketBook InkPad 4 | Eye-Friendly Audio & E-Book
75

Specifications

SpecBigme B7 Pro Color e-Reader, E-Ink ePaper TabletPocketBook InkPad 4 | Eye-Friendly Audio & E-Book
Screen Size7 inch7.8 inch
Resolution300 PPINot specified
RAM8GBNot specified
Storage256GBNot specified
OSAndroid 14Not specified

Dimension comparison

Bigme B7 Pro Color e-Reader, E-Ink ePaper TabletPocketBook InkPad 4 | Eye-Friendly Audio & E-Book

Overview of the Bigme B7 Pro Color e-Reader and PocketBook InkPad 4

The Bigme B7 Pro Color e-Reader is priced at $427.49, while the PocketBook InkPad 4 is more budget-friendly at $299.00, making it about 17% cheaper. This significant price difference is worth considering as it reflects the unique features and capabilities that each device offers, catering to different preferences and reading habits.

Display Quality

The Bigme B7 Pro boasts a 7-inch color Kaleido 3 display with a resolution of 300 PPI, delivering vibrant images and clear text for an exceptional reading experience. In contrast, the PocketBook InkPad 4 features a larger 7.8-inch E-Ink Carta 1200 screen, which is designed to be glare-free and eye-friendly, making it ideal for long reading sessions. The difference in display technology means that while the Bigme may offer more color vibrancy, the PocketBook excels in providing a comfortable reading experience without eye strain.

Performance and Storage

Equipped with an upgraded Octa-core CPU and 8GB of RAM, the Bigme B7 Pro ensures smooth performance, complemented by a generous 256GB of internal storage. This allows users to store approximately 160,000 books and even expand the storage up to 2TB via a micro SD card. Conversely, the PocketBook InkPad 4 does not match this storage capacity, but it is efficient enough for standard e-reading tasks and supports 25 different file formats without conversion, ensuring versatility in accessing various reading materials.

Connectivity Options

The Bigme B7 Pro includes 4G connectivity, which allows users to stay connected on the go without being dependent on Wi-Fi. This feature can be particularly advantageous for those who travel frequently or prefer to access their books and documents anytime, anywhere. The PocketBook InkPad 4, however, includes Bluetooth connectivity, making it suitable for listening to audiobooks and utilizing its Text-to-Speech feature, which reads text files aloud. Both devices offer unique connectivity options that cater to different user needs.

Audio Features

When it comes to audio capabilities, the PocketBook InkPad 4 stands out with its built-in speaker and Bluetooth support. This allows users to enjoy audiobooks or listen to the Text-to-Speech function, which can be particularly useful for multitasking or during commutes. The Bigme B7 Pro does not mention audio features, making the InkPad 4 a better option for users who value audio functionality in their reading devices.

Design and Durability

The Bigme B7 Pro has a sleek design but does not highlight any specific durability features. On the other hand, the PocketBook InkPad 4 is built with an IPX8 waterproof rating, allowing it to withstand immersion in water up to 2 meters deep for 60 minutes. Additionally, it offers anti-scratch protection, enhancing its longevity and usability in various environments. For users concerned about durability and outdoor use, the PocketBook InkPad 4 has a clear advantage.

User Experience and Interface

Both devices run on different operating systems, with the Bigme B7 Pro utilizing Android 14, which supports third-party apps, providing a more versatile user experience. The PocketBook InkPad 4 focuses on delivering a straightforward reading interface with its eye-friendly design and SMARTlight feature, allowing users to adjust screen brightness and color temperature for optimal reading conditions. While the Bigme offers a more advanced OS, the PocketBook provides a user-friendly experience tailored for readers.

Battery Life

Battery life is a crucial factor for any e-reader. The Bigme B7 Pro is designed to provide long battery life, capable of lasting for weeks with regular reading, thanks to its efficient performance. The PocketBook InkPad 4 also boasts a substantial battery life, although specific details are not provided. Both devices are built for extended use, but the Bigme’s capabilities imply a slight edge in longevity during extensive reading sessions.

Which should you buy?

Choosing between the Bigme B7 Pro Color e-Reader and the PocketBook InkPad 4 ultimately depends on your individual needs and preferences. If you prioritize a vibrant color display, extensive storage, and advanced connectivity options, the Bigme B7 Pro is worth the higher price tag at $427.49. However, if you seek a more budget-friendly option with excellent audio features, durable design, and a focus on reading comfort, the PocketBook InkPad 4 at $299.00 is an excellent choice.