E-readers for visual impairment: accessibility guide

Most e-reader buying guides assume you have 20/20 vision. But if you live with low vision, dyslexia, or need assistive reading tools, the standard advice falls apart. This guide focuses entirely on what matters for accessible reading — no filler about waterproofing or warm light.

The four features that actually matter

1. Font size range

Every e-reader lets you increase font size. But the maximum size varies dramatically:

• Kindle: Goes up to size 14, which is about 28pt on most models. Respectable, but some readers with severe low vision need larger.
• Kobo: Matches Kindle’s range. The interface text also scales, which Kindle’s doesn’t fully do.
• Boox (Android): The winner here. Because Boox runs Android, you can install any reader app — and apps like Moon+ Reader go up to 72pt. This alone makes Boox the best choice for severe low vision.

2. Text-to-speech (TTS)

• Kindle: Has VoiceView, a screen reader that reads everything on screen. It’s functional but clunky — designed for blind users navigating the interface, not for comfortable audiobook-style reading.
• Kobo: No built-in TTS on most models. The Sage and Elipsa have Bluetooth for audiobooks, but not text-to-speech for regular books.
• PocketBook: Built-in TTS on most models. Reads any text file aloud with decent English voices. The only brand that offers this out of the box without jailbreaking.
• Boox: Full Android TTS — install any engine (Google TTS, eSpeak, paid voices). This is the most flexible option for heavy TTS users.

3. Dyslexia-friendly fonts

Kindle includes OpenDyslexic. Kobo includes it plus a few other accessible fonts. Boox lets you install any font file, so you can add Atkinson Hyperlegible (free from Braille Institute) or any custom dyslexia font.

4. Contrast and inversion

• White-on-black mode: Kindle calls it “Dark Mode” and it works well across the interface. Kobo has “Invert Screen” hidden in developer options — functional but not polished. Boox offers system-wide dark mode plus per-app inversion settings.
• Boldness and weight: Kobo lets you adjust font weight on a slider, which is excellent for readers who need heavier strokes. Kindle has a boldness slider too, but with fewer steps.

Accessibility beyond vision: motor and cognitive needs

Vision gets the most attention, but e-readers support other accessibility needs that rarely make it into reviews.

For readers with limited hand mobility — arthritis, tremors, cerebral palsy, or post-stroke weakness — physical page-turn buttons are a game-changer. Swiping a touchscreen requires precision and finger strength that not everyone has. The Kobo Libra Colour and PocketBook Era have asymmetrical designs with dedicated buttons that can be pressed with a knuckle, the side of a hand, or even a stylus held in a mouth stick. The Kindle Oasis had this too, but it’s discontinued; the Kobo Libra Colour is now the best current option for button-dependent readers.

For readers with cognitive disabilities or attention-related conditions, e-readers reduce the cognitive load of reading. A printed book presents an entire physical object — you can see how much is left, where chapters begin and end, and your brain processes all of that unconsciously. An e-reader shows you one page at a time, with optional progress indicators you can hide entirely. Disabling the page-number and time-remaining displays removes background anxiety for readers who find those metrics stressful. Kobo lets you hide all progress information; Kindle requires a few more taps but gets you there.

For readers with dyslexia, the combination of a specialized font plus wide line spacing plus shorter line lengths (achieved through wider margins) demonstrably improves reading speed and comprehension. The research is not unanimous, but the anecdotal evidence from dyslexic readers is overwhelmingly positive — and since e-readers make these settings adjustable in seconds, there’s no downside to trying.

How to set up accessibility on each brand

Kindle (VoiceView and visual settings)

Enable VoiceView by holding the power button for seven seconds, or through Settings → Accessibility → VoiceView Screen Reader. Pair Bluetooth headphones or a speaker first — VoiceView requires audio output. Once active, VoiceView reads everything: the book, the menus, the store. Navigate with gestures: swipe right to move to the next item, double-tap to select. The learning curve is real, and I recommend practicing for 20 minutes with someone sighted nearby the first time.

For visual accessibility without VoiceView, the Aa menu controls font size, boldness (five levels), line spacing, margins, and orientation. Dark mode is in the quick settings shade — tap the top of the screen, then the dark mode icon. Warm light schedule (automatic amber shift at sunset) is under Settings → Device Options → Warmth Schedule.

Kobo (font weight, invert, and buttons)

Kobo’s font weight slider is its standout accessibility feature. In the reading menu, tap the Aa icon, then Advanced. The weight slider adds stroke thickness in fine increments that Kindle’s five boldness levels can’t match. This matters because the difference between “almost readable” and “comfortable” can be a single tick on that slider.

Invert Screen lives in Settings → Reading Settings, but on some models you need to enable Developer Options first by typing devmodeon in the search bar. It inverts the entire display — text and images — so be aware that book covers and illustrations will look strange. Physical buttons on the Libra Colour can be configured in Settings → Reading Settings → Page-turn buttons; swap which button goes forward or backward as needed.

Boox (full Android accessibility suite)

Boox devices run Android, which means you get Google’s Accessibility Suite: TalkBack screen reader, magnification gestures, high-contrast text, color inversion, and font size scaling at the system level. Install any TTS engine from the Play Store. Install any reading app that supports the specific accessibility features you need. Install a custom launcher if the stock Boox interface is too busy.

The cost of this flexibility is complexity. Boox devices do not come pre-configured for accessibility the way Kindle and Kobo do. You will need to spend an afternoon setting things up. But once configured, a Boox device can serve a wider range of accessibility needs than any dedicated e-reader.

PocketBook (built-in TTS)

PocketBook’s built-in TTS works through the device speaker — no Bluetooth, no headphones, no pairing. Long-press the center of the screen while reading to open the context menu, then select Voice. Adjust speed and volume from the on-screen controls. The default voice is robotic, but it works with any text file in any supported format, and PocketBook supports over 20 formats natively.

Third-party tools and accessories

A Bluetooth page-turner remote is one of the most underrated accessibility accessories. The 8BitDo Zero 2 or dedicated e-reader remotes clip onto a bed frame, wheelchair arm, or table edge and let you turn pages with a single button press. Essential for readers who read in positions where reaching the screen is difficult.

For Boox users, KOReader is a free, open-source reading app with more granular typography control than any stock reader. It supports custom font weight, contrast, word spacing, and even gamma correction for the screen. Moon+ Reader adds TTS integration, auto-scroll, and 72pt+ font sizing.

A stand or gooseneck holder takes weight off the hands entirely. Combined with a page-turner remote, it creates a fully hands-free reading setup that works from bed, a recliner, or a wheelchair. The Lamicall tablet stand and the Tryone gooseneck are both affordable and sturdy.

Legal standards and what they mean for you

In the United States, the Americans with Disabilities Act (ADA) and Section 508 of the Rehabilitation Act require that electronic information technology be accessible. E-readers sold to educational institutions must meet these standards, which is why Kindle and Kobo include the accessibility features they do. In Europe, the European Accessibility Act (EAA), which takes effect in June 2025, mandates that e-readers and e-books meet specific accessibility requirements including TTS support and navigable structure.

What this means practically: every major e-reader released in the last several years has robust accessibility features, and they will only improve as these regulations take full effect. If you’re evaluating an older or budget device, check whether it supports the specific feature you need — not all older Kindles support VoiceView, and not all budget Kobos have the full font weight slider.

The verdict: which to buy

If your needs cross categories — say you want both huge fonts AND good TTS — Boox is the only option that does both well. It costs more, but when reading is your primary access to information, the flexibility is worth it.