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Onyx Boox Tab Mini C Review | 68 Data compared

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  • Avg. price in UK: ~£400
  • Avg. price in US: ~$350
  • Screen size: 7.8 inches
  • Battery life: 20 hours
  • Supported bookstore ecosystem: Android Open Ecosystem

Onyx Boox Tab Mini C review. Compare 68 technical specifications and user reviews to see how it ranks among ereaders and if it is worth buying.

8.1

Overall score

What it is: An overall evaluation of the eReader's quality, based on technical analyses and user reviews.

When it matters: When you need a quick reference to identify the best eReaders on the market.

Score components:

90.0%

8.1

Technical Score

10.0%

7.8

User score

Excellent
8.1

Technical Score

What it is: An assessment of the eReader's technical performance, covering key areas such as display quality, reading features, battery life, format support, ecosystem, and design.

When it matters: When you want to compare eReaders based on technical performance and available features.

Score components:

25.0%

8.9

Display

22.0%

9.9

Reading

18.0%

6.7

Battery

14.0%

7.8

Hardware

12.0%

8.7

Connectivity

9.0%

4.3

Design

Excellent
7.8

User score

What it is: A rating that combines user reviews and the total number of reviews received by the eReader.

When it matters: When you want to know how an eReader feels in daily reading and how reliable it is for screen comfort, battery life, and library management according to user feedback.

Score components:

70.0%

8.2

User reviews

30.0%

6.8

Popularity

User score:
United Kingdom
amazon
4.1
(106)
amazon
3.9
(56)
United States
Amazon_logo.png
4.2
(106)
Amazon_logo.png
3.8
(45)

(Reviews last updated: Apr 2026)

Very good
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    Best prices in UK

    Best rankings

    ?

    Available: ranking among products currently available (including other versions of this product).
    All: ranking among all products in the database.

    Verdict

    The Onyx Boox Tab Mini C is a versatile 7.8-inch color e-reader featuring a Kaleido 3 e-paper display with a resolution of 300 ppi for black-and-white and 150 ppi for color content. Powered by a Qualcomm octa-core CPU, a dedicated GPU with Boox Super Refresh (BSR) technology, and 4GB of RAM, it runs on Android 11 with full Google Play Store access for third-party apps. Its main characteristics include a premium magnesium-aluminum alloy build, 64GB of internal storage, a large 5,000mAh battery, and Wacom EMR stylus support with 4,096 levels of pressure sensitivity. The device's primary pros are its smooth refresh rates, vibrant color support for comics and notes, and highly portable form factor. However, notable cons include its relatively high weight of 310g, shorter battery life compared to monochrome e-readers due to the BSR technology, and a darker screen that often requires the front light for optimal visibility.

    Technical Specifications of eReader Onyx Boox Tab Mini C

    Technical Score

    What it is: An assessment of the eReader's technical performance, covering key areas such as display quality, reading features, battery life, format support, ecosystem, and design.

    When it matters: When you want to compare eReaders based on technical performance and available features.

    Score components:

    25.0%

    8.9

    Display

    22.0%

    9.9

    Reading

    18.0%

    6.7

    Battery

    14.0%

    7.8

    Hardware

    12.0%

    8.7

    Connectivity

    9.0%

    4.3

    Design

    8.1
    Onyx Boox Tab Mini C has a technical score of 8.13 points, which is higher than that of 87.7% of products in this category.
    User score

    What it is: A rating that combines user reviews and the total number of reviews received by the eReader.

    When it matters: When you want to know how an eReader feels in daily reading and how reliable it is for screen comfort, battery life, and library management according to user feedback.

    Score components:

    70.0%

    8.2

    User reviews

    30.0%

    6.8

    Popularity

    User score:
    United Kingdom
    amazon
    4.1
    (106)
    amazon
    3.9
    (56)
    United States
    Amazon_logo.png
    4.2
    (106)
    Amazon_logo.png
    3.8
    (45)

    (Reviews last updated: Apr 2026)

    7.8
    Onyx Boox Tab Mini C has a user score of 7.77 points, which is lower than that of 68.9% of products in this category.
    Popularity
    What it is: An indicator based on the number of reviews received by the eReader.
    When it matters: When you prefer to choose an eReader reviewed and selected by many other buyers.
    6.8
    Onyx Boox Tab Mini C has a popularity of 6.8 points, which is higher than 60.7% of smartphones.
    Ratio quality/price

    What it is: An indicator that combines the eReader's overall rating with its cost.

    When it matters: When you are looking for an eReader with a good balance between reading comfort, features, and price.

    Score components:

    60.0%

    8.1

    Overall score

    40.0%

    8.4

    Price

    8.2
    Onyx Boox Tab Mini C has a quality-to-price ratio of 8.2 points, which is higher than 81.2% of smartphones.
    Brand name
    What it is: Identifies the company or ecosystem behind the device, which often shapes the store, software approach, and accessory support.
    When it matters: When you are choosing between Kindle, Kobo, Boox, PocketBook, or another ecosystem with different store access and software behavior.

    Importance: MEDIUM

    Onyx
    Screen size
    What it is: The diagonal measurement of the reading panel, usually given in inches.
    When it matters: When you are deciding between a small travel reader and a larger page that works better for PDFs, comics, or textbooks.

    Importance: HIGH

    Good value: >=7.8

    7.8 inches
    Onyx Boox Tab Mini C has a screen size of 7.8 inches which is larger than 64.8% of eReaders on this spec and equal to 9% of eReaders.
    Screen resolution
    What it is: The total pixel grid shown on the panel, normally written as width by height.
    When it matters: When small fonts, diagrams, or dense page layouts need to stay readable without constant zooming.

    Importance: HIGH

    1404x1872 px
    Onyx Boox Tab Mini C uses a screen resolution of 1404x1872 px, which is sharper than that of 73.8% of eReaders and the same as that of 17.2% of eReaders.
    Pixel density
    What it is: The number of pixels packed into each inch of the display, expressed in ppi.
    When it matters: When you want text edges to look cleaner and serif fonts to resemble print more closely.

    Importance: HIGH

    Good value: >=300

    300 ppi
    Onyx Boox Tab Mini C has a pixel density of 300 ppi which is higher than 51.6% of eReaders on this spec and equal to 48.4% of eReaders.
    150 ppi in color.
    E-paper display
    What it is: Uses an electrophoretic panel designed to mimic paper rather than a conventional backlit phone or tablet screen.
    When it matters: When you read for long stretches and want lower glare and less screen-like fatigue than on LCD or OLED devices.

    Importance: LOW

    yes
    Onyx Boox Tab Mini C uses an e-paper display. 97.6% of eReaders have an e-paper display.
    Show more
    Supported file types
    What it is: Lists which ebook, document, image, or audio formats the reader can open without conversion.
    When it matters: When your library comes from mixed sources instead of one locked bookstore.

    Importance: HIGH

    26
    Onyx Boox Tab Mini C supports 26 file types which is more than 96% of eReaders on this spec and equal to 4% of eReaders.
    PDF reflow support
    What it is: Can rearrange PDF text into a more readable, screen-sized layout instead of forcing the original fixed page.
    When it matters: When you read A4 documents, articles, or manuals on a smaller eReader screen.

    Importance: HIGH

    yes
    Onyx Boox Tab Mini C offers PDF reflow. 55.4% of eReaders support PDF reflow.
    Annotation support
    What it is: Allows highlighting, handwritten notes, typed comments, or markup directly inside supported files.
    When it matters: When you study, review academic papers, or want your notes to stay attached to the exact passage.

    Importance: HIGH

    yes
    Onyx Boox Tab Mini C offers annotation support. 100% of eReaders offer annotation support.
    Dictionary
    What it is: Provides built-in word lookup while you read.
    When it matters: When you read in another language or want quick definitions without leaving the page.

    Importance: MEDIUM

    yes
    Onyx Boox Tab Mini C includes a built-in dictionary. 99.2% of eReaders include a built-in dictionary.
    Text-to-speech
    What it is: Converts on-screen text into spoken audio using a synthetic voice.
    When it matters: When you want to keep following a book while resting your eyes, walking, or multitasking.

    Importance: MEDIUM

    yes
    Onyx Boox Tab Mini C offers text-to-speech. 64.2% of eReaders include text-to-speech.
    Show more
    Battery life
    What it is: Estimates how long the device can keep running between charges under normal reading conditions.
    When it matters: When you travel, commute, or want to finish books for days without thinking about charging.

    Importance: HIGH

    Good value: >=30

    20 hours
    Onyx Boox Tab Mini C offers 20 hours of battery life which is shorter than 61.3% of eReaders on this spec and equal to 12.5% of eReaders.
    estimated 15-30 hours based on usage conditions
    Battery capacity
    What it is: The amount of energy the battery can store, commonly expressed in mAh.
    When it matters: When you want a rough hardware indicator of how much power reserve the device has.

    Importance: MEDIUM

    Good value: >=2000

    5,000 mAh
    Onyx Boox Tab Mini C has a battery capacity of 5000 mAh which is higher than 96.7% of eReaders on this spec and equal to 0.8% of eReaders.
    Charging time
    What it is: The approximate time needed to recharge the battery from low to full.
    When it matters: When you often top up shortly before leaving and need the reader ready again quickly.

    Importance: MEDIUM

    Good value: <=3

    2 hours
    Onyx Boox Tab Mini C takes 2 hours to charge which is quicker than 49% of eReaders on this spec and equal to 40.4% of eReaders.
    Wireless charging
    What it is: Can recharge on a compatible charging pad without plugging in a cable.
    When it matters: When you prefer drop-and-charge convenience on a desk or bedside stand.

    Importance: LOW

    no
    Onyx Boox Tab Mini C does not offer wireless charging. 7.3% of eReaders offer wireless charging.
    Internal storage
    What it is: The built-in space available for books, notes, audiobooks, apps, and downloaded documents.
    When it matters: When you keep large libraries offline or store a lot of PDFs and audio locally.

    Importance: HIGH

    Good value: >=32

    64 GB
    Onyx Boox Tab Mini C offers 64 GB of internal storage which is more than 82.2% of eReaders on this spec and equal to 11% of eReaders.
    RAM capacity
    What it is: The amount of working memory used for page rendering, multitasking, and keeping content active in the background.
    When it matters: When you open heavy files, switch between books, or expect the interface to stay snappy.

    Importance: MEDIUM

    Good value: >=2

    4 GB
    Onyx Boox Tab Mini C offers 4 GB of RAM which is more than 86.6% of eReaders on this spec and equal to 10.1% of eReaders.
    CPU base clock speed
    What it is: The baseline operating frequency of the main processor under normal load.
    When it matters: When you compare readers for faster menu navigation, indexing, and handling of larger documents.

    Importance: MEDIUM

    8 x 2 GHz
    Onyx Boox Tab Mini C has a CPU base clock speed of 8 x 2 GHz, which is faster than that of 82.6% of eReaders and the same as that of 12.4% of eReaders.
    Operating system
    What it is: The software platform that drives the interface, reading apps, and deeper system capabilities.
    When it matters: When you care about app availability, customization, and how flexible the device can become beyond basic reading.

    Importance: HIGH

    Android 11
    Onyx Boox Tab Mini C runs Android 11, which is more advanced than that of 76.2% of eReaders and the same as that of 17.2% of eReaders.
    Memory card slot
    What it is: Accepts removable storage so the library can expand beyond the built-in capacity.
    When it matters: When your collection will outgrow internal storage or you move files between devices manually.

    Importance: MEDIUM

    no
    Onyx Boox Tab Mini C does not have a memory card slot. 43.1% of eReaders have a memory card slot.
    Show more
    Wi-Fi connectivity
    What it is: Connects the reader to wireless networks for book downloads, syncing, updates, and online services.
    When it matters: When you buy books directly on the device or keep your library synced without using a cable.

    Importance: HIGH

    yes
    Onyx Boox Tab Mini C connects over Wi-Fi. 93.5% of eReaders have Wi-Fi.
    Wi-Fi version
    What it is: Specifies which wireless networking standard is supported, such as Wi-Fi 4, 5, or 6.
    When it matters: When router compatibility, wireless stability, or faster transfers on newer home networks matter to you.

    Importance: LOW

    Wi-Fi 5 (802.11ac), Wi-Fi 4 (802.11n)
    Onyx Boox Tab Mini C supports Wi-Fi Wi-Fi 5 (802.11ac), Wi-Fi 4 (802.11n), which is newer than that of 58.2% of eReaders and the same as that of 40.2% of eReaders.
    Wi-Fi bands supported
    What it is: Shows whether the reader can use 2.4 GHz, 5 GHz, or both wireless bands.
    When it matters: When crowded apartment Wi-Fi or 5 GHz-only setups make band support matter at home or in the office.

    Importance: LOW

    2.4 GHz+5 GHz
    Onyx Boox Tab Mini C supports 2.4 GHz+5 GHz Wi-Fi bands, which is broader than that of 57.4% of eReaders and the same as that of 42.6% of eReaders.
    Bluetooth
    What it is: Provides short-range wireless pairing for headphones, speakers, keyboards, page turners, or other accessories.
    When it matters: When you listen to audiobooks, use a remote page turner, or want cable-free accessories around the house.

    Importance: MEDIUM

    yes
    Onyx Boox Tab Mini C connects over Bluetooth. 60.2% of eReaders have Bluetooth.
    Bluetooth version
    What it is: Identifies the supported Bluetooth generation, which affects efficiency, codec support, and compatibility.
    When it matters: When you pair newer headphones and want a more stable, lower-power wireless connection.

    Importance: LOW

    Good value: >=5.0

    5.0
    Onyx Boox Tab Mini C supports Bluetooth 5.0 which is newer than 58.5% of eReaders on this spec and equal to 28.8% of eReaders.
    Show more
    Weight
    What it is: The mass of the device, usually measured in grams.
    When it matters: When one-handed comfort matters and you do not want the reader to feel tiring during long sessions.

    Importance: HIGH

    Good value: <=200

    310 g
    Onyx Boox Tab Mini C weighs 310 g which is heavier than 73.8% of eReaders on this spec of eReaders.
    Thickness
    What it is: The depth of the body from front to back, usually measured in millimetres.
    When it matters: When grip comfort, sleeve fit, or how slim the reader feels in the hand matters to you.

    Importance: MEDIUM

    Good value: <=8

    8.3 mm
    Onyx Boox Tab Mini C is 8.3 mm thick which is thicker than 53.3% of eReaders on this spec and equal to 5.8% of eReaders.
    Height
    What it is: The vertical size of the body, usually measured from top to bottom in millimetres.
    When it matters: When you are checking whether the reader will fit a bag, jacket pocket, or small stand.

    Importance: LOW

    Good value: <=160

    194 mm
    Onyx Boox Tab Mini C is 194 mm tall which is taller than 68% of eReaders on this spec and equal to 3.3% of eReaders.
    Width
    What it is: The side-to-side body measurement, usually given in millimetres.
    When it matters: When one-handed reach and how much space the reader takes in a bag or bedside setup matter.

    Importance: LOW

    Good value: <=130

    136.5 mm
    Onyx Boox Tab Mini C is 136.5 mm wide which is wider than 58.2% of eReaders on this spec and equal to 4.9% of eReaders.
    Water resistance (splashproof)
    What it is: Can tolerate light splashes, damp hands, or brief accidental contact with water.
    When it matters: When you read by the bath, at the pool, or outdoors where light moisture is realistic.

    Importance: MEDIUM

    no
    Onyx Boox Tab Mini C does not have water resistance against splashes. 25% of eReaders have water resistance against splashes.
    Show more

    Onyx Boox Tab Mini C vs the average eReader

    • 3.27x larger battery capacity
      Onyx Boox Tab Mini C has a larger battery than the average eReader (5,000 mAh vs 1,530 mAh). The average eReader battery has a capacity of 1,530 mAh.
      What it is: The amount of energy the battery can store, commonly expressed in mAh.
      When it matters: When you want a rough hardware indicator of how much power reserve the device has.

      Importance: MEDIUM

      Good value: >=2000

      Onyx Boox Tab Mini C has a larger battery than the average eReader (5,000 mAh vs 1,530 mAh). The average eReader battery has a capacity of 1,530 mAh.5,000 mAh vs 1,530 mAh
    • 11 broader file support
      Onyx Boox Tab Mini C supports a broader range of file types than the average eReader (26 vs 15).
      What it is: Lists which ebook, document, image, or audio formats the reader can open without conversion.
      When it matters: When your library comes from mixed sources instead of one locked bookstore.

      Importance: HIGH

      Onyx Boox Tab Mini C supports a broader range of file types than the average eReader (26 vs 15).26 vs 15
    • 4x more storage
      Onyx Boox Tab Mini C offers more internal storage than the average eReader (64 GB vs 16 GB). The average eReader provides 16 GB of internal storage.
      What it is: The built-in space available for books, notes, audiobooks, apps, and downloaded documents.
      When it matters: When you keep large libraries offline or store a lot of PDFs and audio locally.

      Importance: HIGH

      Good value: >=32

      Onyx Boox Tab Mini C offers more internal storage than the average eReader (64 GB vs 16 GB). The average eReader provides 16 GB of internal storage.64 GB vs 16 GB
    • Has color display
      Onyx Boox Tab Mini C has a color display, while the average eReader does not.
      What it is: Shows color instead of grayscale only, usually through a color E Ink panel with more muted tones than LCD or OLED screens.
      When it matters: When you read comics, illustrated books, magazines, or documents that rely on color-coded charts and highlights.

      Importance: MEDIUM

      Onyx Boox Tab Mini C has a color display, while the average eReader does not.
    • Supports handwriting recognition
      Onyx Boox Tab Mini C supports handwriting recognition, while the average eReader does not.
      Built-in handwriting-to-text support.
      What it is: Can convert handwritten pen input into editable digital text.
      When it matters: When you write notes by hand and want them searchable, cleaner, or easier to export later.

      Importance: MEDIUM

      Onyx Boox Tab Mini C supports handwriting recognition, while the average eReader does not.
    • 3.49 GB more RAM
      Onyx Boox Tab Mini C has more RAM than the average eReader (4 GB vs 0.512 GB). The average eReader has 0.512 GB of RAM.
      What it is: The amount of working memory used for page rendering, multitasking, and keeping content active in the background.
      When it matters: When you open heavy files, switch between books, or expect the interface to stay snappy.

      Importance: MEDIUM

      Good value: >=2

      Onyx Boox Tab Mini C has more RAM than the average eReader (4 GB vs 0.512 GB). The average eReader has 0.512 GB of RAM.4 GB vs 0.512 GB
    • 37 more front-light LEDs
      Onyx Boox Tab Mini C has more front-light LEDs than the average eReader (42 vs 5). The average eReader has 5 front-light LEDs.
      What it is: Shows how many LEDs are used to light the screen evenly from the bezel.
      When it matters: When you want fewer bright spots, shadows, or uneven lighting across the page at night.

      Importance: MEDIUM

      Good value: >=17

      Onyx Boox Tab Mini C has more front-light LEDs than the average eReader (42 vs 5). The average eReader has 5 front-light LEDs.42 vs 5
    • Faster CPU base clock speed
      Onyx Boox Tab Mini C has a faster CPU base clock speed than the average eReader (8x2 GHz vs 1x1 GHz). The average eReader has a CPU base clock speed of 1x1 GHz.
      What it is: The baseline operating frequency of the main processor under normal load.
      When it matters: When you compare readers for faster menu navigation, indexing, and handling of larger documents.

      Importance: MEDIUM

      Onyx Boox Tab Mini C has a faster CPU base clock speed than the average eReader (8x2 GHz vs 1x1 GHz). The average eReader has a CPU base clock speed of 1x1 GHz.8x2 GHz vs 1x1 GHz
    • Has color display
      Onyx Boox Tab Mini C has a color display, while the average eReader does not.
    • 37 more front-light LEDs
      Onyx Boox Tab Mini C has more front-light LEDs than the average eReader (42 vs 5). The average eReader has 5 front-light LEDs.
    • Higher screen resolution
      Onyx Boox Tab Mini C supports higher screen resolution than the average eReader (1404x1872 px vs 1072x1448 px). The average eReader supports 1072x1448 px screen resolution.
    • More advanced E-Ink technology
      Onyx Boox Tab Mini C uses Kaleido 3 E-Ink technology, while the average eReader uses Carta Plus.
    • 13.2% higher pixel density
      Onyx Boox Tab Mini C has a higher pixel density than the average eReader (300 ppi vs 265 ppi). The average eReader has a pixel density of 265 ppi.
    • 0.8 inches larger screen size
      Onyx Boox Tab Mini C has a larger screen than the average eReader (7.8 inches vs 7 inches). The average eReader screen size is 7 inches.
    • Supports auto-rotate
      Onyx Boox Tab Mini C supports auto-rotate, while the average eReader does not.
    • 11 broader file support
      Onyx Boox Tab Mini C supports a broader range of file types than the average eReader (26 vs 15).
    • Supports handwriting recognition
      Onyx Boox Tab Mini C supports handwriting recognition, while the average eReader does not.
    • Supports stylus
      Onyx Boox Tab Mini C supports a stylus, while the average eReader does not.
    • Broader library support
      Onyx Boox Tab Mini C supports more library lending platforms than the average eReader (OverDrive, Libby, Hoopla, BorrowBox, cloudLibrary vs OverDrive, Libby).
    • Includes stylus
      Onyx Boox Tab Mini C includes a stylus, while the average eReader does not.
    • 3.27x larger battery capacity
      Onyx Boox Tab Mini C has a larger battery than the average eReader (5,000 mAh vs 1,530 mAh). The average eReader battery has a capacity of 1,530 mAh.
    • 4x more storage
      Onyx Boox Tab Mini C offers more internal storage than the average eReader (64 GB vs 16 GB). The average eReader provides 16 GB of internal storage.
    • 3.49 GB more RAM
      Onyx Boox Tab Mini C has more RAM than the average eReader (4 GB vs 0.512 GB). The average eReader has 0.512 GB of RAM.
    • Faster CPU base clock speed
      Onyx Boox Tab Mini C has a faster CPU base clock speed than the average eReader (8x2 GHz vs 1x1 GHz). The average eReader has a CPU base clock speed of 1x1 GHz.
    • More advanced operating system
      Onyx Boox Tab Mini C uses Android 11, a more advanced operating system than Kindle OS on the average eReader.
    • Has accelerometer
      Onyx Boox Tab Mini C has an accelerometer, while the average eReader does not.
    • Has microphone
      Onyx Boox Tab Mini C has a microphone, while the average eReader does not.
    • Supports USB OTG
      Onyx Boox Tab Mini C supports USB OTG, while the average eReader does not.
    • 2 more speakers
      Onyx Boox Tab Mini C has more speakers than the average eReader (2 vs 0). The average eReader has 0 speakers.
    • Better Wi-Fi bands
      Onyx Boox Tab Mini C supports 2.4 GHz+5 GHz Wi-Fi bands, while the average eReader supports 2.4 GHz.
    • 2 year/s newer release date
      Onyx Boox Tab Mini C is newer than the average eReader (2023 vs 2021). The average eReader was released in 2021.

    Total
    Overall
    Display
    Reading
    Battery
    Hardware
    Connectivity
    Design
    • 1 hours shorter battery life
      Onyx Boox Tab Mini C offers shorter battery life than the average eReader (20 hours vs 21 hours). The average eReader offers 21 hours of battery life.
      estimated 15-30 hours based on usage conditions
    • Older Bluetooth version
      Onyx Boox Tab Mini C supports an older Bluetooth version than the average eReader (5 vs 5.1).
    • 45.5% heavier
      Onyx Boox Tab Mini C is heavier than the average eReader (310 g vs 213 g). The average eReader weighs 213 g.
    • 21 mm taller
      Onyx Boox Tab Mini C is taller than the average eReader (194 mm vs 173 mm). The average eReader height is 173 mm.
    • 8.9 mm wider
      Onyx Boox Tab Mini C is wider than the average eReader (136.5 mm vs 127.6 mm). The average eReader width is 127.6 mm.
    • 45.5% heavier
      Onyx Boox Tab Mini C is heavier than the average eReader (310 g vs 213 g). The average eReader weighs 213 g.
      What it is: The mass of the device, usually measured in grams.
      When it matters: When one-handed comfort matters and you do not want the reader to feel tiring during long sessions.

      Importance: HIGH

      Good value: <=200

      Onyx Boox Tab Mini C is heavier than the average eReader (310 g vs 213 g). The average eReader weighs 213 g.310 g vs 213 g
    • 1 hours shorter battery life
      Onyx Boox Tab Mini C offers shorter battery life than the average eReader (20 hours vs 21 hours). The average eReader offers 21 hours of battery life.
      estimated 15-30 hours based on usage conditions
      What it is: Estimates how long the device can keep running between charges under normal reading conditions.
      When it matters: When you travel, commute, or want to finish books for days without thinking about charging.

      Importance: HIGH

      Good value: >=30

      Onyx Boox Tab Mini C offers shorter battery life than the average eReader (20 hours vs 21 hours). The average eReader offers 21 hours of battery life.20 hours vs 21 hours
    • 2.35x more expensive
      Onyx Boox Tab Mini C is more expensive than the average eReader (£400 vs £170).
      Onyx Boox Tab Mini C is more expensive than the average eReader (£400 vs £170).£400 vs £170
    • 21 mm taller
      Onyx Boox Tab Mini C is taller than the average eReader (194 mm vs 173 mm). The average eReader height is 173 mm.
      What it is: The vertical size of the body, usually measured from top to bottom in millimetres.
      When it matters: When you are checking whether the reader will fit a bag, jacket pocket, or small stand.

      Importance: LOW

      Good value: <=160

      Onyx Boox Tab Mini C is taller than the average eReader (194 mm vs 173 mm). The average eReader height is 173 mm.194 mm vs 173 mm
    • Older Bluetooth version
      Onyx Boox Tab Mini C supports an older Bluetooth version than the average eReader (5 vs 5.1).
      What it is: Identifies the supported Bluetooth generation, which affects efficiency, codec support, and compatibility.
      When it matters: When you pair newer headphones and want a more stable, lower-power wireless connection.

      Importance: LOW

      Good value: >=5.0

      Onyx Boox Tab Mini C supports an older Bluetooth version than the average eReader (5 vs 5.1).5.0 vs 5.1
    • 8.9 mm wider
      Onyx Boox Tab Mini C is wider than the average eReader (136.5 mm vs 127.6 mm). The average eReader width is 127.6 mm.
      What it is: The side-to-side body measurement, usually given in millimetres.
      When it matters: When one-handed reach and how much space the reader takes in a bag or bedside setup matter.

      Importance: LOW

      Good value: <=130

      Onyx Boox Tab Mini C is wider than the average eReader (136.5 mm vs 127.6 mm). The average eReader width is 127.6 mm.136.5 mm vs 127.6 mm
    • 3% lower user score
      Onyx Boox Tab Mini C has a lower user score than the average eReader (7.77 vs 8,000).
      What it is: A rating that combines user reviews and the total number of reviews received by the eReader.
      When it matters: When you want to know how an eReader feels in daily reading and how reliable it is for screen comfort, battery life, and library management according to user feedback.
      Onyx Boox Tab Mini C has a lower user score than the average eReader (7.77 vs 8,000).7.77 vs 8
    Total
    Overall
    Battery
    Connectivity
    Design

    Graphic comparison of Onyx Boox Tab Mini C and other eReaders

    Attribute category
    Attribute
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    Third-party reviews

    United Kingdom
    amazon
    4.1
    106 Reviews
    amazon
    3.9
    56 Reviews
    United States
    Amazon_logo.png
    4.2
    106 Reviews
    Amazon_logo.png
    3.8
    45 Reviews

    (Reviews last updated: Apr 2026)

    What customers like about Onyx Boox Tab Mini C?

    • Vibrant 7.8-inch Kaleido 3 color E Ink display with 300 ppi for black-and-white content
    • Smooth performance and reduced ghosting thanks to Boox Super Refresh (BSR) technology
    • Full access to the Google Play Store, allowing for a wide range of third-party Android apps
    • Excellent writing and note-taking experience with the included Wacom-compatible stylus
    • Premium, robust build quality featuring a sleek metal chassis
    • Large 5,000mAh battery providing reliable multi-day use

    What customers dislike about Onyx Boox Tab Mini C?

    • Noticeably darker screen compared to monochrome devices, often requiring the front light to be on
    • Muted and less saturated colors compared to traditional LCD or OLED tablets
    • Significantly heavier (approx. 310g) than typical e-readers of the same size
    • High price point that rivals some fully-featured tablets like the iPad mini
    • Low color resolution (150 ppi) can make images and small colored text appear soft or pixelated
    • Complex user interface with a steeper learning curve than dedicated e-readers like Kindle or Kobo

    Expert reviews

    E
    ewritable.net
    04/11/2024
    Boox Tab Mini C Review Would you like a comparison of how the Onyx Boox Tab Mini C performs against other 7.8-inch color e-readers like the PocketBook...

    The Boox Tab Mini C is a high-performance 7.8-inch color e-ink tablet featuring a 300 PPI Kaleido 3 screen for crisp text and 150 PPI for color, enhanced by Boox Super Refresh (BSR) technology for smooth scrolling and Android app functionality via the Google Play Store. It boasts a premium metal build, superior portability compared to 10.3-inch alternatives, Wacom-compatible...Read more

    T
    the-gadgeteer.com
    29/10/2023
    Boox Tab Mini C review – The perfect sized, Android tablet with Color E-ink that's easy on the eyes

    The Boox Tab Mini C is highlighted as a portable 7.8-inch Kaleido 3 color e-ink tablet with premium build quality and a responsive, Android-based, app-capable experience, ideal for reducing eye strain. Key advantages include its versatility for professional tasks, efficient note-taking with OCR, and solid battery life. However, the device faces criticism for its high $449.99 price...Read more

    Q
    qsolit.com
    27/09/2023
    Onyx Boox Tab Mini C review: an ereader that’s colorful and compact but expensive

    The Qsolit review of the 7.8-inch Onyx Boox Tab Mini C highlights a compact device featuring Kaleido 3 color technology, a premium metal chassis, and a crisp 300 PPI black-and-white display. It is well-suited for color-heavy content like comics, though the 4,096 colors operate at a lower 150 PPI. Key cons include a high price point and lingering performance issues, specifically...Read more

    T
    techradar.com
    26/09/2023
    Onyx Boox Tab Mini C review

    The Onyx Boox Tab Mini C is a premium 7.8-inch eReader featuring a color E Ink Kaleido 3 display, Android 11 functionality, and versatile note-taking capabilities. Key pros highlighted by TechRadar include a sharp 300 ppi black-and-white resolution (150 ppi for color), a high-quality build, and an exceptionally long-lasting 5,000mAh battery. However, the device is criticized for...Read more

    P
    pcmag.com
    18/09/2023
    Onyx Boox Tab Mini C Review

    The Onyx Boox Tab Mini C brings color E Ink to a portable 7.8-inch, 300ppi (monochrome) / 150ppi (color) device featuring a high-quality aluminum build and the versatility of Android 11 for app installation [PCMag review]. Key drawbacks highlighted include the high £449.99 price point and the muted, low-saturation color performance of the Kaleido 3 screen compared to standard LCD...Read more

    A
    androidpolice.com
    28/08/2023
    Onyx Boox Tab Mini C review: Colorful and compact, but not cheap

    The Onyx Boox Tab Mini C is a premium 7.8-inch, Android-based color E Ink tablet featuring a durable metal chassis, capable of running various reading apps. Key pros include a crisp 300 PPI B&W display, excellent stylus functionality, and a large 5,000mAh battery. Conversely, cons center on the $449 price point, washed-out 150 PPI color performance, persistent screen ghosting, and a...Read more

    H
    howtogeek.com
    03/08/2023
    Boox Tab Mini C Review: Color E-Reader For Kindle Owners

    The Onyx Boox Tab Mini C is a 7.8-inch color e-reader featuring a Kaleido 3 E Ink screen, offering vibrant color for comics and documents alongside Android 11 with full Google Play Store access. It boasts a premium metal build, capable note-taking with a stylus, and a high-performance processor for the e-ink market. However, the color screen has a lower resolution (150 PPI) than the...Read more

    A
    appleinsider.com
    16/07/2023
    Boox Tab Mini C Review: an e-ink tablet that we can get behind

    The AppleInsider review (July 2023) highlights the Onyx Boox Tab Mini C as a versatile 7.8-inch E Ink tablet utilizing Android 11, praised for its Kaleido 3 color screen, which offers 300 ppi for text and 150 ppi for color. Key pros include the ability to display 4,000+ colors for reading, a premium metal build, and reduced eye strain compared to traditional LCD tablets. However,...Read more

    H
    howtogeek.com
    03/08/2023
    Boox Tab Mini C Review: Color E-Reader For Kindle Owners

    The Onyx Boox Tab Mini C is a 7.8-inch color e-reader featuring a Kaleido 3 display (300 ppi B&W, 150 ppi color) and a durable, premium metal chassis. Running Android 11, it offers access to the Google Play Store for versatile app usage, along with Boox Super Refresh (BSR) technology that enables smooth, low-ghosting performance, making it highly effective for reading, note-taking,...Read more

    T
    techradar.com
    26/09/2023
    Onyx Boox Tab Mini C review: an ereader that’s colorful and compact, but expensive

    The Onyx Boox Tab Mini C, reviewed by TechRadar, is a 7.8-inch Android 11 e-reader featuring a Kaleido 3 E Ink screen that provides 300ppi for black-and-white and 150ppi for color. While the color is functional for graphics and highlighting, it appears washed out, but the device excels by allowing users to run various apps like Kindle and Kobo from the Google Play Store. Key...Read more

    P
    pcmag.com
    18/09/2023
    Onyx Boox Tab Mini C Review

    The Onyx Boox Tab Mini C, a 7.8-inch E Ink Kaleido 3 tablet featuring 4,096-color capabilities, acts as a hybrid device bridging the gap between standard e-readers and traditional tablets. While it offers a premium metal design, smooth performance via Android 11, and excellent stylus functionality, the colors are less vibrant than LCD screens and the device lacks an IP waterproof...Read more

    U
    uk.pcmag.com
    18/09/2023
    Onyx Boox Tab Mini C - Review 2023 - PCMag UK Would you like me to find video-based reviews or a comparison against the newer Boox Go Color 7?

    The Onyx Boox Tab Mini C is a premium 7.8-inch E Ink tablet featuring a Kaleido 3 color screen and Android 11, allowing for third-party app installation and versatile note-taking with a stylus. While offering 300ppi for monochrome text, the color display drops to 150ppi, and the device lacks waterproofing, with a high $449.99 price point. Despite excellent battery life and fast...Read more

    Y
    yankodesign.com
    08/08/2023
    Onyx BOOX Tab Mini C Review: Color, Productivity, and Fun in a More Convenient Package

    The Onyx Boox Tab Mini C is a 7.8-inch e-ink tablet featuring a vibrant Kaleido 3 color screen and BSR (Boox Super Refresh) technology for fluid navigation. The device serves as a portable, versatile tool for productivity, offering a premium build, a responsive stylus, and full access to the Google Play Store. Key advantages include long-lasting battery life and a highly...Read more

    C
    clubic.com
    08/09/2023
    Onyx Boox Tab Mini C Review: The color e-reader at its very best

    The Onyx Boox Tab Mini C is a versatile 7.8-inch, Android-based e-reader featuring Kaleido 3 color screen technology that enhances readability for comics and color-coded documents. Its premium design and BOOX Super Refresh (BSR) technology provide a fluid, tablet-like experience, though the device has a higher price point, a darker display without backlighting, and shorter battery...Read more

    (Translated)Show original
    M
    metropolisweb.it
    15/11/2023
    BOOX Tab Mini C: The Most Compact Color E-Ink Tablet

    The Onyx Boox Tab Mini C is a 7.8-inch e-ink tablet featuring a Kaleido 3 color display and a dedicated GPU, designed to bridge the gap between e-readers and Android tablets for reading color content. Housed in a premium aluminum-magnesium alloy, the 310g device is praised for its build quality, though some users may find it heavy for extended use. A key strength is the Boox Super...Read more

    (Translated)Show original
    T
    techprincess.it
    26/06/2023
    BOOX Tab Mini C: The new color ePaper tablet

    The Boox Tab Mini C is a compact 7.8-inch Android e-paper tablet featuring a Kaleido 3 color screen, providing 300 PPI for monochrome and 150 PPI for color content, suited for reading and note-taking. The device features a premium metal design and incorporates a dedicated GPU with Boox Super Refresh (BSR) technology to reduce ghosting and enhance fluidity on the E Ink display. Key...Read more

    (Translated)Show original
    T
    tweakers.net
    01/03/2026
    Comparing Boox e-readers - Tweakers

    Onyx Boox e-readers, such as the Go 6 and Go 10.3, offer high versatility via an open Android OS allowing installation of Kindle, Kobo, and Libby apps, coupled with premium, ultra-thin hardware featuring high-resolution 300 DPI screens. These devices excel in note-taking with responsive styluses, particularly on larger models. However, the user experience is hindered by a steep...Read more

    (Translated)Show original

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