The problem with a Kindle isn't the Kindle. It's that a 6-inch slab doesn't fit in a jeans pocket, so it stays home, so you end up reading your phone instead — which is to say, not reading at all.
Xteink attacks that from an angle nobody else is seriously working: an e-ink reader small and thin enough to genuinely live in a pocket. The X4 Pro is 5.95mm thick and weighs 72 grams — lighter than most phones, thinner than a pencil. There's no store, no subscription and no DRM; you load your own files and the device gets out of the way. Over 3,000 reviews at 4.79 stars suggest that resonates. But a device this small makes real trade-offs, and a few of them aren't obvious until the box is open. Here's the full picture.
Xteink at a Glance
Xteink X4 Pro Pocket eReader
The model that fixes the original's biggest limitation. A 4.3-inch 219 PPI e-ink panel with a dual-tone front light — adjustable brightness plus warm/cool temperature — which turns it from a daylight-only device into one you can read in bed. Add a touchscreen alongside physical page buttons, a 1100mAh battery, 16GB expandable to 256GB, and built-in magnets that snap it to a phone or case. All in 5.95mm and 72 grams.
$99.00 $109.00 · 4.59★ from 117 reviews
Xteink X3 vs X4 Pro: The Only Decision That Matters
Two models are in stock (the button-only X4 is currently sold out), and the choice between them comes down to one feature far more than screen size.
- Front light with warm/cool adjustment
- 4.3" screen, touchscreen and buttons
- 1100mAh battery, USB or app transfer
- 72g, 5.95mm, built-in magnets
- 4.59★ from 117 reviews
- No front light — daylight or lamp only
- 3.7" screen, physical buttons only
- 650mAh battery, app transfer only
- 58g — the lightest in the range
- 4.75★ from 616 reviews
Our call: pay the extra $30 for the X4 Pro. The front light isn't a luxury on an e-ink device — it's the difference between a reader you use whenever you have five minutes and one you can only use in good light. The X3 makes sense if absolute minimum weight is the point, or if you genuinely only ever read outdoors and at a lit desk. It also currently ships with 15% off and a free magnetic case, which narrows the gap.
Which Xteink Should You Buy?
Every pick below links through to the Xteink store.
The Range in Detail
The complete one. 4.3", 219 PPI, dual-tone front light, touch plus buttons, 1100mAh, Wi-Fi and Bluetooth, 16GB microSD included. Ships with a screen protector, two adhesive metal rings and the magnetic charging adapter already in the box.
View on Xteink →
The pocket minimum. 3.7", 58g, buttons only, no front light. The most-reviewed product in the range at 4.75★ from 616 buyers — and currently the better deal thanks to the bundled magnetic case.
View on Xteink →
Snap and read. Flips open and the device wakes — the closest thing this range has to a signature interaction. Rated 4.89★ for the X4 Pro version. At under nine dollars there's no real argument for skipping it.
View on Xteink →See the Scale
Dimensions in millimetres mean nothing until you see one next to a phone. This is a device whose whole argument is physical.
The Thing to Check Before You Buy
Three More Things the Spec Sheet Buries
It doesn't charge over USB-C. The X4 Pro uses a pogo pin connector with a magnetic charging adapter — which is included, but a USB cable is not. You supply your own cable to plug into the adapter, and that adapter becomes a small object you really don't want to lose. A $5.99 spare is cheap insurance for anyone who travels.
Fonts are XTF and BIN only. Custom fonts are supported, which matters on a device whose appeal is making reading yours — but not in TTF, the format almost everyone actually has. Xteink says TTF support is coming in a future firmware update. Treat it as a planned feature rather than one you have today.
The format list isn't consistent. The detailed spec block lists EPUB and TXT for documents; the comparison chart on the same site also claims MOBI and PDF. Plan around EPUB and TXT as the safe formats and convert anything else with Calibre first. PDF on a 4.3-inch screen is a poor experience regardless of whether it technically opens.
Why Buying Direct Actually Matters Here
Most "buy from the official store" pitches are noise. This one isn't. Xteink publishes an Unrestricted Firmware Guarantee: units bought directly through its own website are exempt from third-party firmware restrictions, and the company states this applies to all past and present models with no planned change.
The implication is plain enough — some units sold through other channels may ship with firmware limitations. Since open, unrestricted firmware is the main reason to choose this over a mainstream eReader, buying from a marketplace seller risks losing the exact thing you're paying for. On a $99 device with free shipping direct, there's no upside to shopping around.
Accessories Worth Adding
Magnetic Case
Six colours, flip-to-wake, and the accessory with the highest rating in the store at 4.89★. Free with the X3 during the current promotion.
View →
Magnetic Charging Adapter
One comes in the box, but it's a pogo-pin device — lose the adapter on a trip and you cannot charge at all. A spare belongs in the travel bag.
View →
Screen Protectors
Matte 2-packs from $3.99, tempered glass from $4.99. Matte suits e-ink better — it preserves the paper texture that glass flattens out.
View →Because the X4 Pro has magnets built into the back, it also plays well with the wider magnetic accessory ecosystem — the mounts and MagSafe-style gear in our Torras review pair naturally with it. And if it's joining a bag that already carries a laptop, the pouches in our Tomtoc review keep a 5.95mm device from getting bent around.
Is Xteink Legit?
The numbers say yes: 4.79★ across 3,061 store reviews, with the X3 alone carrying 616. Orders come with free shipping (in-stock items dispatch in 1–5 days), a 30-day hassle-free return window and a one-year warranty, and the store ships to more than 50 countries including India, across all the major payment methods.
Two softer signals worth more than the star rating. First, they run an active subreddit (r/xteinkereader) rather than a locked-down support form — a company that lets its users talk to each other in public is usually confident in the product. Second, there's a real companion app and XT-Cloud ecosystem with ongoing firmware development, which is a meaningful commitment for a brand this size.
The honest caveats: support is email-only, the X4 Pro comes in Space Black only, and firmware languages are currently limited to English, Japanese and Chinese, with a long list of others promised via future updates. If you need a European language interface today, wait.
Xteink vs Kindle vs Reading on Your Phone
| Factor | Xteink X4 Pro | Kindle / Kobo | Phone Reading App |
|---|---|---|---|
| Pocketability | 72g, 5.95mm — genuine | Bag, not pocket | Already there |
| Eye comfort | E-ink, front-lit | E-ink, front-lit | Backlit LCD/OLED |
| Distractions | None — no apps | Minimal | Every notification |
| Store & DRM books | None — sideload only | Full store | Full store |
| Screen size | 4.3" — more page turns | 6–7" | ~6" |
| Price | $99 | Varies by model | Free |
The honest read: this isn't really a Kindle competitor — it's a phone-reading competitor. Nobody replaces a 7-inch e-reader with a 4.3-inch one for a long evening in an armchair. What Xteink wins is the ten minutes in a queue, the bus ride, the coffee break — the moments currently going to a scrolling feed. Judge it against your phone habit, not against your Kindle.
Performance Breakdown
Xteink Ratings
Who Should Buy an Xteink?
- The reclaimed-minutes reader: if your goal is to replace queue-scrolling with pages, this is the only e-ink device small enough to make that automatic.
- The DRM-free library owner: Standard Ebooks, Gutenberg, indie EPUB purchases, your own PDFs converted to EPUB — all of it just works.
- The digital minimalist: no store, no apps, no notifications. The device does one thing, which is increasingly the point.
- The EDC builder: 72g and 5.95mm slots into a bag or pocket alongside the sort of everyday kit in our Tomtoc review without anyone noticing it's there.
Who should skip it: anyone whose library is locked in Amazon's DRM, anyone who reads long sessions in an armchair and would rather have a 7-inch screen, anyone who needs a non-English interface today, and anyone unwilling to do a little file management. This is not a device that meets you halfway.
Pros & Cons
- Genuinely pocketable — 72g and 5.95mm.
- Dual-tone front light on the X4 Pro.
- Touchscreen and physical buttons, your choice.
- 16GB included, expandable to 256GB.
- No DRM, no store lock-in, open firmware.
- Cannot open DRM-protected Kindle books.
- Pogo pin charging — no USB cable included.
- Fonts limited to XTF/BIN; TTF still "coming".
- Conflicting format claims on their own site.
- English, Japanese and Chinese firmware only.
How to Buy Xteink Cheaper
Three levers, all currently live. The X3 promotion is the strongest — 15% off plus a free magnetic case, which is roughly $19 of value on a $69 device. Email signup gets an extra 10% off, worth about $10 on the X4 Pro and stackable with the free shipping already applied to all eReaders. And the X4 Pro is currently $99 against a $109 list price, so you're not waiting on a discount that's coming. Add a case and a spare charging adapter to the same order rather than paying shipping attention twice.
See Current Xteink Pricing →👉 Torras Review: magnetic accessories that pair with the built-in magnets.
👉 7Hz Salnotes Review: $20 IEMs for when you'd rather listen than read.
👉 Epomaker Review: the desk setup this ends up living beside.
Frequently Asked Questions
Can you read Kindle books on an Xteink?
Not directly. Xteink devices have no Kindle store integration and cannot open DRM-protected Amazon purchases. You sideload your own files by USB or through the companion app. If your library is DRM-free EPUB and TXT, or comes from sources like Project Gutenberg and Standard Ebooks, everything works. If your library is locked inside Amazon's ecosystem, this device won't read it — the single most important thing to understand before buying.
X3 or X4 Pro: which Xteink should I buy?
Buy the X4 Pro at $99 if you read at night or in bed, because it's the only model with a front light. It also adds a touchscreen alongside the physical buttons, a larger 4.3" screen, a 1100mAh battery and USB transfer. Buy the X3 at $69 if you want the smallest, lightest option at 58g and only ever read in decent light. The front light is the real dividing line, not screen size.
Does the Xteink X4 Pro charge over USB-C?
No. It uses a pogo pin connector with a magnetic charging adapter, which is included in the box — but a USB cable is not. You supply your own cable to plug into that adapter. It also means the magnetic adapter is a part worth not losing, since a standard USB-C cable can't charge the device on its own.
What file formats does the Xteink X4 Pro support?
The detailed specification lists EPUB and TXT for documents, plus JPG and BMP images. Xteink's comparison chart additionally lists MOBI and PDF. Given the discrepancy, plan around EPUB and TXT as the reliable formats and convert anything else with a free tool like Calibre before transferring. PDF is impractical on a 4.3" screen regardless of whether it technically opens.
Can you install custom fonts on an Xteink?
Yes, but only in XTF and BIN formats at present. Xteink states TTF support is planned for a future firmware update. Worth knowing, because font customisation is one of the main appeals of an open device — and the common TTF files most people already have won't work until that update ships.
Why does Xteink say to buy from the official website?
Xteink publishes an Unrestricted Firmware Guarantee stating that units bought directly through its own website are exempt from third-party firmware restrictions, applying to all past and present models. The implication is that units from some resellers may carry firmware limitations. Since open firmware is the main reason to choose this over a mainstream eReader, buying direct is the sensible route.
Final Score: 8.7/10
Xteink has built something genuinely uncommon: a device whose entire value proposition is physical. At 72 grams and 5.95mm it goes where a Kindle doesn't, which means it gets used when a Kindle wouldn't. The compromises are real — no DRM books, pogo pin charging, a font system still catching up — and they'll rule it out for plenty of people. But if you own your files and you've been meaning to read more and scroll less, $99 for the X4 Pro is one of the more effective interventions you can buy.
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