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- InkPad 4 black/grey
VivlioE-reader
Vivlio InkPad 4 black/grey
Vivlio InkPad 4 black/grey is an e-reader released in 2025. Key specs: screen size 7.8″, pixel density 300 ppi, screen technology E Ink Carta, water resistance (IPx) IPx7.
5.0Score
Screen5.5
Comfort & build2.2
Battery6.4
Features7.1
price range—
7.8″Screen size
300 ppiPixel density
E Ink CartaScreen technology
NoWarm light (adjustable colour temperature)
IPx7Water resistance (IPx)
32 GBStorage
2,000 mAhBattery capacity
265 gWeight
Spec guide
How it ranks among e-readers
Screen size · 7.8″Top 36%Pixel density · 300 ppiTop 35%Water resistance (IPx) · IPx7Bottom 3%Storage · 32 GBTop 48%Battery capacity · 2,000 mAhBottom 38%Weight · 265 gBottom 34%
Compared with every model of this kind in the catalog.
compared with other e-readers
Why is InkPad 4 black/grey a good choice?
Screen size: 7.8″better than 90% of e-readers
Weak points
Water resistance (IPx): IPx7worse than 100% of e-readers
Weight: 265 gworse than 85% of e-readers
Specifications
Full specifications
Screen
- Screen size
- 7.8″
- Resolution
- 1872 × 1404
- Pixel density
- 300 ppi
- Colour screen
- No
- Grey levels
- 16
- Touchscreen
- Yes
- Front light
- Yes
- Warm light (adjustable colour temperature)
- No
Design
- Weight
- 265 g
- Width
- 134 mm
- Height
- 189 mm
- Thickness
- 8 mm
- Protection rating
- IPX7
- Water resistance (IPx)
- IPx7
- Colours
- Black, Grey
Battery
- Battery capacity
- 2,000 mAh
- USB-C
- Yes
Storage
- Storage
- 32 GB
- RAM
- 1 GB
Software & books
- Supported formats
- EPUB, PDF, MOBI, FB2, DJVU, CBZ, CBR, DOCX, DOC, RTF, TXT, HTML, CHM
- EPUB support
- Yes
- Text-to-speech
- Yes
- Audiobooks / audio playback
- Yes
Connectivity & audio
- Wi-Fi
- Yes
- Bluetooth
- Yes
- Mobile data (4G / LTE)
- No
- Built-in speaker
- Yes
Performance
- CPU clock
- 1 GHz
Specs are collected from manufacturers and open databases and normalised to one format; check details with the seller before you buy.
Compare
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E-readers — Screen size from 7.8″ + Screen technology: E Ink Carta20E-readers — Screen technology: E Ink Carta + water resistance (IPx) from IPx727E-readers: Water resistance (IPx) from IPx7 + EPUB support29E-readers — Screen technology: E Ink Carta + storage from 32 GB32E-readers: Screen size from 7.8″ + audiobooks / audio playback37E-readers: Screen size from 7.8″ + pixel density from 300 ppi37E-readers: Storage from 32 GB47E-readers: Screen size from 7.8″ + EPUB support48
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