Expert Score8.3
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PocketBook•product
PocketBook InkPad 4
7.8-inch 300 ppi IPX8-waterproof e-reader with SMARTLight warm and cool lighting, 32 GB storage, and open multi-format support at $289
Expert Rating
8.3/10
Best Pricing & Availability
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The Analysis
Quick Specs
Price$289
Weight0.265
Cloud Sync Yes
Ease Of UseTouchscreen plus dedicated physical page-turn buttons for hybrid navigation; simple menus with minimal learning curve for regular e-reader users
Expert Review Summary
The PocketBook InkPad 4 is a 7.8-inch E Ink Carta 1200 e-reader with a 1404 x 1872 resolution (300 ppi) display, available since May 2023. Priced at $289 at launch, it delivers a mid-size reading experience with SMARTLight for adjustable warm and cool front lighting, IPX8 waterproofing, and 32 GB of built-in storage capable of holding tens of thousands of ebooks and documents.
Powered by a dual-core 1 GHz processor with 1 GB RAM, the InkPad 4 supports over 19 ebook and document formats natively, including EPUB, PDF, FB2, MOBI, and DOCX. A 2,000 mAh battery delivers up to two months of typical use with wireless off. Bluetooth 4.0 enables wireless audiobook playback, and dedicated physical page-turn buttons supplement the touchscreen for ergonomic one-handed reading.
For avid readers who travel frequently, the PocketBook InkPad 4 offers a compelling combination of screen real estate, portability, and format openness. Unlike Amazon or Kobo, PocketBook does not lock users into a single storefront: OverDrive, Libby, PocketBook Cloud, and Dropbox all work natively, and DRM-free files load without conversion. Its 265-gram chassis and IPX8 rating make it a durable, flexible companion for beach, pool, or commute reading.
Technical Specifications
Price$289
Weight0.265
Cloud Sync Yes
Ease Of UseTouchscreen plus dedicated physical page-turn buttons for hybrid navigation; simple menus with minimal learning curve for regular e-reader users
Warm Light Yes
Front Light Yes
Pdf SupportVery good: 7.8-inch screen renders A5 PDFs near full size; supports zoom, crop margins, and mixed-column document navigation
Screen Size7.8
Battery LifeUp to 2 months based on 30 minutes per day with wireless off and moderate front light usage
Display TypeE Ink Carta 1200
Notes Export No
Sideloading Yes
Audio Support Yes
Charging TypeUSB-C
Color Display No
Open Ecosystem Yes
Screen QualityE Ink Carta 1200, 300 ppi, 1404 x 1872 resolution, SMARTLight adjustable warm and cool front lighting, glare-free anti-scratch surface
Stylus Support No
WaterproofingIPX8 rated, withstands immersion in up to 2 meters of fresh water for 60 minutes
Android Support No
Annotation ToolsHighlight, underline, add notes, and bookmark passages; annotations exportable as a text summary; no stylus support
Storage Capacity32
App CompatibilityPocketBook store, OverDrive, Libby, PocketBook Cloud; over 19 file formats supported natively including EPUB, PDF, FB2, MOBI, and DOCX
Screen Resolution300
Font CustomizationMultiple built-in fonts with size, weight, line spacing, hyphenation, and margin controls; custom fonts loadable via USB storage
Document ManagementFolder-based library organization, favorites shelf, full-text search across books, sort by author, title, series, or date added
Library IntegrationOverDrive and Libby for public library borrowing, PocketBook Cloud sync, Dropbox integration, ReadRate social reading platform
Handwriting Recognition No