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Onyx Boox Note Air 3 specifications and in-depth review

Onyx Boox Note Air 3

Manufacturer: Onyx

The Onyx Boox Note Air 3 is a large-format e-reader built around a 10.3-inch e-paper touchscreen that is self-lit and features an anti-reflection coating, making it well-suited for extended reading sessions in varying light conditions. With support for 21 file formats, a built-in dictionary, text-to-speech, and an integrated browser, it functions as a versatile reading and annotation device rather than a basic e-reader. It runs as a multi-user system with split-screen support, widgets, and a range of software features including dark mode, dynamic theming, and voice commands.

On the hardware side, the Note Air 3 is powered by an 8-core CPU clocked at 2.4 GHz and carries 4 GB of RAM alongside 64 GB of internal storage, with an external memory slot for expansion. The 3700 mAh battery is non-removable and charges via USB Type-C, though fast charging and wireless charging are not supported. Stereo speakers are present along with an accelerometer and gyroscope, while cellular connectivity, NFC, GPS, a front camera, and a 3.5 mm audio jack are all absent. At 5.8 mm thick and 430 g, the device has a relatively slim and manageable physical profile for its screen size.

Pros
  • The 10.3-inch self-lit e-paper display with anti-reflection coating and 227 ppi resolution is well-configured for comfortable long-form reading in a variety of lighting conditions
  • Support for 21 file types, a built-in dictionary, and text-to-speech functionality make it a versatile reading and annotation tool beyond basic e-book formats
  • Stereo speakers combined with text-to-speech support allow for audio playback directly from the device without requiring external accessories
  • 64 GB of internal storage paired with an external memory slot provides ample and expandable space for large document and e-book libraries
  • At just 5.8 mm thick, the slim physical profile keeps the device manageable despite its large screen size
  • Multi-user support and split-screen multitasking add meaningful flexibility for shared use and productivity tasks
Cons
  • The 3700 mAh battery does not support fast charging or wireless charging, meaning top-up times may be slow for a device of this size
  • Wi-Fi is limited to Wi-Fi 4 (802.11n) with no cellular module, making the device entirely dependent on a local wireless network for internet access
  • No 3.5 mm headphone jack is present, limiting wired audio options for users who prefer headphones while listening to text-to-speech playback
  • No water resistance is offered, leaving the device vulnerable to accidental splashes in everyday environments
  • The absence of a fingerprint scanner or biometric security option limits access control to non-hardware methods
Who is this for?

The Onyx Boox Note Air 3 is well-matched to avid readers and note-takers who want a large-format device for extended sessions without eye strain. The 10.3-inch self-lit e-paper display with anti-reflection coating is purpose-built for prolonged reading in diverse lighting environments, and the support for 21 file types alongside a built-in dictionary and text-to-speech makes it a capable tool for users who work across a wide range of document formats. Its 64 GB of expandable internal storage and multi-user support also suit students, academics, or professionals who manage large libraries of PDFs, e-books, or annotated documents and may share the device across accounts. The slim 5.8 mm profile adds a degree of portability that is practical for daily carry in a bag.

Who is this NOT for?

Users who need reliable on-the-go connectivity will find the device limiting, as it relies entirely on Wi-Fi 4 with no cellular module, making internet access unavailable away from a wireless network. Those who consume multimedia content heavily will also be underserved — the absence of a 3.5 mm headphone jack restricts wired audio options, and the e-paper display technology is inherently unsuited to video playback or fast-moving visual content. The lack of fast charging and wireless charging means users who need quick top-ups between sessions will find the charging experience frustrating, and the absence of any water resistance makes the device a poor fit for outdoor or wet environments where accidental exposure is likely.

Design:

weight 430 g
volume 252.9844 cm³
width 193 mm
thickness 5.8 mm
height 226 mm

The Onyx Boox Note Air 3 measures 226 mm tall and 193 mm wide, with a slim profile of just 5.8 mm in thickness. It weighs 430 g and has a total volume of 252.98 cm³, giving it a physical footprint that is relatively manageable for a 10.3-inch device.

Display:

screen size 10.3"
is self-lit ✓
pixel density 227 ppi
Has an e-paper display ✓
has a touch screen ✓
has anti-reflection coating ✓
resolution 1404 x 1872 px
has branded damage-resistant glass ✕

The Onyx Boox Note Air 3 features a 10.3-inch e-paper touchscreen with a resolution of 1404 x 1872 px and a pixel density of 227 ppi, delivering a sharp, paper-like reading experience. The display is self-lit and equipped with an anti-reflection coating, making it comfortable to use in both low-light and bright ambient conditions. Branded damage-resistant glass is not included on this panel.

Performance:

internal storage 64GB
has an external memory slot ✓
RAM 4GB
CPU speed 8 x 2.4 GHz

The Onyx Boox Note Air 3 runs on an 8-core CPU clocked at 2.4 GHz and is paired with 4 GB of RAM, providing enough processing capacity for smooth navigation, annotation, and multitasking within its e-reader use case. It comes with 64 GB of internal storage and includes an external memory slot, allowing users to expand available space as needed.

Connectivity:

has a cellular module ✕
supports Wi-Fi ✓
Wi-Fi version Wi-Fi 4 (802.11n)
Has Bluetooth ✓
Bluetooth version 5
has a search browser ✓
has NFC ✕
is DLNA-certified ✕
has an HDMI output ✕

The Onyx Boox Note Air 3 connects wirelessly via Wi-Fi 4 (802.11n) and Bluetooth 5, and includes a built-in browser for web access. It does not have a cellular module, so internet connectivity relies entirely on Wi-Fi. NFC, HDMI output, and DLNA certification are all absent from this device.

Battery:

battery power 3700 mAh
Has USB Type-C ✓
has a removable battery ✕
Supports fast charging ✕
has wireless charging ✕
has a rechargeable battery ✓
has a battery level indicator ✓

The Onyx Boox Note Air 3 houses a 3700 mAh non-removable rechargeable battery that charges via USB Type-C. A battery level indicator is available to monitor remaining charge. Neither fast charging nor wireless charging is supported.

Features:

has a built-in speaker ✓
has dictionary ✓
supported file types 21
supports text-to-speech ✓
has a socket for a 3.5 mm audio jack ✕
has GPS ✕
has stereo speakers ✓
has an accelerometer ✓
has a compass ✕
Has a radio ✕
has a front camera ✕
has a built-in HDR mode ✓
has a child lock ✕
has a gyroscope ✓

The Onyx Boox Note Air 3 is equipped with stereo speakers, text-to-speech support, a built-in dictionary, and HDR mode, making it reasonably capable for both reading and audio playback. It supports 21 file types, broadening compatibility across a wide range of document and e-book formats. Motion sensing is covered by an accelerometer and gyroscope, while a front camera, compass, GPS, radio, child lock, and 3.5 mm headphone jack are all absent from this device.

Miscellaneous:

water resistance None
has media picker ✕
has notification permissions ✕
has Mail Privacy Protection ✕
Tracks the current position of a mobile device ✓
blocks cross-site tracking ✕
can block app tracking ✓
has Quick Start ✕
has dynamic theming ✓
is a multi-user system ✓
Has customizable notifications ✓
has clipboard warnings ✓
has on-device machine learning ✓
has location privacy options ✓
has camera/microphone privacy options ✓
Supports widgets ✓
has theme customization ✓
has focus modes ✕
has dark mode ✓
supports split screen ✓
has full-page screenshots ✓
supports slow-motion video recording ✓
Has sharing intents ✓
has Live Text ✓
has voice commands ✓
has an extra dim mode ✓
has Wi-Fi password sharing ✕
has battery health check ✕
Can play games while they download ✓
Has offline voice recognition ✓
can offload apps ✕
has PiP ✓
can create panoramas in-camera ✓
Is free and open source ✓

The Onyx Boox Note Air 3 carries no water resistance rating and offers a broad set of software and privacy capabilities across its open-source platform. On the privacy side, it provides location privacy options, camera and microphone access controls, clipboard warnings, and app tracking blocking, though cross-site tracking blocking, Mail Privacy Protection, and notification permissions are not included. The device supports multi-user access, split-screen multitasking, Picture-in-Picture, widgets, dark mode, dynamic theming, theme customization, an extra dim mode, full-page screenshots, sharing intents, Live Text, voice commands, offline voice recognition, customizable notifications, device tracking, and on-device machine learning. It can also play content while downloading and supports panorama capture and slow-motion video recording. Features such as a media picker, focus modes, Wi-Fi password sharing, battery health check, app offloading, and Quick Start are not available on this device.

Final Verdict

The Onyx Boox Note Air 3 is a focused e-reader built around its core strength: a 10.3-inch self-lit e-paper display with anti-reflection coating that makes extended reading sessions genuinely comfortable across a range of environments. Broad file format support, stereo speakers, text-to-speech, expandable storage, and multi-user access give it more versatility than a typical single-purpose e-reader, while the slim 5.8 mm profile keeps it reasonably portable despite its large screen. Its limitations — particularly the Wi-Fi 4-only connectivity, absence of cellular support, lack of fast charging, and no headphone jack — mean it functions best in settled, Wi-Fi-accessible environments rather than on the move. For readers, students, and professionals who prioritize screen comfort and document versatility over connectivity flexibility, the Onyx Boox Note Air 3 presents a coherent and well-specified package.

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