Half a Kindle: the pocket e-readers worth buying in 2026

Amazon raised the price of its cheapest Kindle on August 21, 2026. The base model now lists at $149.99 with lockscreen ads and $169.99 without, $40 more than a month earlier. Amazon told Fortune it had absorbed "significant increases in memory and storage component costs" for as long as it could. Kobo's Clara BW had already gone to $159.99 in May.

Over the same months, a different kind of e-reader multiplied. Put a 4-inch e-paper panel, an ESP32 microcontroller, a microSD slot and a few buttons in a phone-width shell, and you get a reader that sells for $49.90 from Seeed Studio, $69–99 from Xteink, and $99.99–109.99 from Onyx's BOOX brand. A year ago this was barely a category. By the end of September 2026 it has at least six manufacturers, crowdfunded open hardware, and a phone maker selling one in China.

What makes it a category is software. Most of these devices run, or can be made to run, the same community firmware: CrossPoint, the MIT-licensed reader we mapped in our June piece on the Xteink firmware scene. That changes how you shop. For most people buying one, the first question isn't the screen size or the price. It's whether the device will take CrossPoint, one of its forks, or some other custom firmware, because that is what they will run on it. As one owner put it on the project's subreddit: "I would not even consider a device if it cannot have Crosspoint on it."

So this guide groups every device by what you can install on it, then by price. All prices, versions and stock states are as of September 30, 2026.

What these devices are, and what they aren't

These are microcontroller gadgets, not tablets. There's no app store, no bookstore and no DRM. They read EPUB and plain text (CrossPoint also reads its own pre-rendered XTC format), and they don't read PDFs or comics. The screens run from 3.7 to 4.7 inches. On the common 3.7–4.3-inch panels that works out to 219–259 pixels per inch, against 300 on a $150 Kindle, and most of them show four levels of grey rather than sixteen.

What you get in exchange is size. The pocket readers here weigh 58–75 grams; a 6-inch Kindle or Kobo weighs 158–174. The battery lasts weeks. Several of them stick magnetically to the back of a phone. And your library is EPUB files on a microSD card that you own, with reading progress synced through KOReader's sync server, books pulled from OPDS catalogs, and even library loans via CrossPoint's Libby plug-ins.

Owners mostly describe them as a second reader, not a replacement. The case for, from a Hacker News thread about The Atlantic's X3 story: "It is always in my pocket and I started reaching for it instead of my phone during tiny moments of boredom." The case against, from the same thread: "A 4 inch screen is just too small IMHO." Both are right, for different people.

The first question: can it run CrossPoint?

"Supports CrossPoint" gets used loosely, so it's worth being precise. As of CrossPoint 1.6.5 (September 27), support comes in four levels:

• Official release targets. Built and published with every version: the Xteink X3 and X4 (one shared build), X4 Pro, X4 Classic, Seeed reTerminal Sticky and M5Stack PaperMono.
• Website betas. Flashable only from crosspointreader.com, and they lag the main release: M5Stack's M5Paper v1.1 and PaperS3, and LilyGo's T5 boards.
• Hardware profiles, no build. The FreeInk SDK, CrossPoint's hardware layer, describes a longer list — the EEGO A4, Murphy M4, Metalio E-Ink 4 and Waveshare's 3.97-inch board among them — but CrossPoint doesn't ship firmware for them. Community forks such as CrossMux publish nightly builds for several.
• Announced. The BOOX Picco: a CrossPoint team member has said a build will be on the web flasher before retail units arrive. It wasn't there on September 30.

Forks fill in around the official list. CrossInk (typography and reading stats) publishes builds for the X3/X4, X4 Classic, X4 Pro and Sticky; Papyrix for the Xteink models; crosspoint-aurora for the LilyGo boards as well as the official devices.

Two more things are worth knowing before you buy on the strength of CrossPoint support. First, the project's own devices page lists eight devices, most with referral links; that's part of how the project pays for itself, and it's a buying guide rather than a support matrix (two of the eight are website betas and one has no build yet). Second, device support is growing faster than the number of people testing it. Two-thirds of the FreeInk SDK's commits since August come from one maintainer, and several device pull requests say they were written largely with AI coding tools. That's not a reason to avoid the project, which ships a release every few weeks, but it is a reason to prefer devices on the official list.

Flashing is easy on the easy path. I bought my X4 from AliExpress, which is the channel CrossPoint warns can ship USB-locked units. I opened the web flasher in Chrome, plugged the reader in over USB, clicked flash, and CrossPoint installed on the first try. I got lucky: mine wasn't locked. If yours is, the X3 and X4 have an SD-card method that runs CrossPoint on a locked unit; the X4 Pro needs Xteink's OTA unlocker. The flasher uses the browser's serial-device picker, so use a desktop browser that supports it (Chrome worked for me).

Buy today: official CrossPoint targets

(Full disclosure: the links to Seeed's and Xteink's stores in this guide are affiliate links, and the Seeed discount code below is an affiliate code too. Buying through them is one of the ways this site is paid for.)

Seeed reTerminal Sticky — $49.90

The cheapest device in stock, and the least like an e-reader out of the box. Seeed sells the Sticky as a magnetic e-paper gadget: a 3.97-inch 800×480 touchscreen, three buttons, USB-C, a 750 mAh battery and 70 grams, with a stock app for notes, calendars and AI dictation. The reader is something you flash. Seeed markets that openly, listing CrossPoint alongside TRMNL, ESPHome and OpenDisplay firmware, and it was Seeed that approached CrossPoint and sent hardware; the Sticky became the project's first non-Xteink official target in August.

Two caveats. There's no frontlight. And the screen is glossy: Aftermath's reviewer called it their only real complaint and suggested a matte screen protector. Shipping and tax push the landed price above $49.90, though the code H8SLWCXO takes 5% off the Sticky at checkout (as of September 30, 2026). Seeed is a development-hardware company, and the Sticky is a general-purpose device that happens to make a good reader. That's why it's open by design, but it also means reading isn't Seeed's priority.

Xteink X3 — $69

The smallest of the mainstream options and still the community favorite. The X3 has a 3.7-inch, 528×792 screen at 259 ppi, front and side page buttons and tilt-to-turn, and it weighs 58 grams. It launched internationally at $79 in April and now lists at $69. There's no frontlight and no touchscreen, and it charges through a magnetic pogo-pin cable rather than USB-C. The missing light is the most common complaint, and aftermarket front-lit cases have become their own small genre.

It runs on the ESP32-C3, the older, memory-constrained chip, so it misses CrossPoint features that need extra RAM, such as TrueType fonts. In exchange it has the widest fork support of any device here.

Xteink X4 Classic — $79

Xteink discontinued the X4 on August 12, and the X4 Classic, on sale since September 7, is its replacement. It keeps the formula of a 4.3-inch, 219 ppi screen with buttons and no touch, and adds tilt-to-turn, a 920 mAh battery and a thinner, 68-gram body. It also moves to the ESP32-S3 with 8 MB of external RAM, which unlocks CrossPoint's TrueType fonts and Cover Grid home screen. It became an official CrossPoint target in 1.6.5.

It costs $10 more than the X4 did, and it drops the X4's USB-C port for pogo pins (an adapter comes in the box). For many owners that trade is the whole story; more on that below.

Xteink X4 Pro — $99

The frontlit Xteink. The X4 Pro adds a warm-and-cool frontlight and a touchscreen to the 4.3-inch format, with side buttons and a capacitive Home key in place of the X4's front clickers. It has a 1100 mAh battery, weighs 72 grams, charges over pogo pins, and has been an official CrossPoint target since 1.6.0 (September 5). Store reviewers mention cracked screens and slow support; a case is standard advice. Xteink is also rolling out new stock firmware, "Licorice", which owners report still has bugs. If you're flashing CrossPoint anyway, that matters less.

Xteink as a vendor

Xteink is the reason this category exists, and a few things about how it operates are worth knowing before you buy.

• Only the official store guarantees an unlocked unit. Units sold through Xteink's own store are "Developer Edition" hardware and ship unlocked. Elsewhere it's a matter of luck rather than a rule: units sold through Chinese retail have been locked against custom firmware since around April 30, CrossPoint says units from third-party stores can ship locked, and plenty don't (mine didn't). A locked X3 or X4 can still run CrossPoint through the SD-card method. If you want to be sure, buy from xteink.com.
• Parts change quietly, and the firmware keeps up. Xteink has swapped display controllers without renaming models: the X3 moved to a new controller in mid-2026, and the X4 Pro and X4 Classic ship with one of three depending on batch. CrossPoint added support for each change quickly, so the practical advice is simply to flash the current release.
• The cloud is free for now. Xteink's own app and XT-Cloud handle file transfer on the stock firmware. The store FAQ says it "may introduce subscription-based features or paid services in the future." On CrossPoint you don't need it.
• The warranty excludes damage from unofficial firmware.
• A new model has passed the FCC. An unannounced "XTEINK X4 Light" was certified on August 13. Its public photos show a pogo connector. The frontlight the name implies isn't confirmed.

M5Stack PaperMono — $65, sold out

On paper, the best device in the class. The PaperMono combines a 3.97-inch touchscreen, a frontlight, physical keys, USB-C and an 1150 mAh battery; the $65 version adds LoRa radio and NFC, and a $55 Lite version skips them. It has been an official CrossPoint target since 1.6.0, and M5Stack's launch announcement said it supports CrossPoint.

The problem is buying one. It launched on August 21, sold out, and M5Stack has said the next batch arrives "next year", per CNX Software. M5Stack makes development boards, and the stock firmware is a hardware demo, so this is a flash-it-yourself device from day one.

Coming soon: BOOX Picco — $99.99–109.99

The Picco is the most significant launch in the class this year, because it isn't what anyone expected. BOOX, Onyx's brand of Android e-readers, teased a pocket device in July; the $120–180 figures that circulated were guesses. What it announced in September is an ESP32 device, the first in a new "BOOX Tiles" line, running what Onyx calls a "minimalist operating system". It puts the Xteinks' hardware class inside BOOX's build quality.

The Picco has a 3.97-inch, 235 ppi touchscreen with a warm-and-cool frontlight, page buttons, USB-C, a 920 mAh battery, a 16 GB microSD card in the box, and weighs 58 grams. Pre-orders opened September 28 at $99.99 from BOOX's Hong Kong warehouse or $109.99 from its US warehouse, shipping "around October" (the press release says by November). A BOOX representative said orders from BOOX's own site include the magnetic case, and that loose buttons on review units will be fixed in retail units.

On stock firmware, getting books onto it is the weak spot. EPUBs go through the BOOX Tiles app or website, even over USB-C; reviewers say files are converted to a proprietary format; BOOX says native EPUB reading is "being worked on". There's no PDF support.

On custom firmware, the picture is better and moving fast. The first reviewer flashed CrossPoint onto their review sample, owners report USB flashing isn't locked, and a CrossPoint team member has confirmed the Picco has the same 8 MB of external RAM as the X4 Pro and said a build will be on the flasher before retail units ship. BOOX's official line is that it doesn't recommend third-party firmware and that flashing may void the warranty. It hasn't blocked it.

For a lot of buyers, the choice is the Picco or the X4 Pro. One CrossPoint subreddit commenter summed it up: "Bigger screen/size, plastic body and pogo charger vs smaller size, partially aluminium body and USB-C."

For tinkerers

• LilyGo T5 E-Paper S3 Pro Lite ($71.31). The big screen in the class: 4.7 inches, 960×540, sixteen levels of grey, a warm frontlight, touch, and a 1500 mAh battery. It's a development board, and CrossPoint's website beta for it dates from July; an issue on the project's tracker calls it broken. Community ports (crosspoint-aurora, t5s3-reader) are more active.
• M5Stack M5Paper v1.1 ($85). A 4.7-inch, 16-grey touch board with no frontlight, on the older, original ESP32 chip. It has a CrossPoint website beta from August 30.
• Waveshare ESP32-S3-ePaper-3.97 ($34.99–47.99). A bare-bones 3.97-inch board with no touch and no light. A contributor has confirmed it reads EPUBs end to end through the FreeInk SDK, but there's no CrossPoint build; CrossMux has nightlies.
• Open Book Touch ($149). Joey Castillo's open-hardware reader: 4.26 inches, warm-and-cool frontlight, touch, a user-replaceable battery, and its own MIT-licensed firmware rather than CrossPoint. It raised $133,328 on Crowd Supply against a $45,000 goal; new orders ship around April 2027. It's the most expensive device here and the only one whose hardware design will be published.

China-only and grey-market

Several of the newest devices are hard to buy outside China, or come with risks that don't show on the listing.

• EEGO A4 (about 199–239 yuan). A 4-inch, 238 ppi touch reader with an optional frontlight and USB-C. The FreeInk SDK's analysis says its stock firmware is CrossPoint with the name removed. The interface is Chinese-only, and the maker didn't answer reviewer Joshua Lowcock's questions.
• Murphy M4 (AliExpress). A 4.26-inch frontlit touch reader with USB-C, running a CrossPoint-derived stock firmware. Owners warn that reinstalling the stock firmware needs a per-unit activation code, and that without it the device is effectively bricked.
• Metalio E-Ink 4 (AliExpress). A 3.97-inch touch reader without a light, notable because the vendor published its own stock firmware under the MIT licence. One owner reported their unit overheating and draining in hours; the seller escalated it.
• Honor Life S3 (359 yuan). A 3.68-inch, 259 ppi touch reader with USB-C that snaps onto a phone, announced in China on September 28. It's the first phone brand in the class. Honor hasn't said what it runs, so custom-firmware support is unknown.
• Xteink S4 (reportedly 339 yuan). Xteink's first Android reader: 4.3 inches, frontlight, touch, and USB-C. China-only for now.

The charging-port fight

Every Xteink model sold internationally, and the one waiting at the FCC, charges through pogo pins. Every other device in this guide uses USB-C. Xteink's founder defended the choice as the price of a thinner device in an open letter on September 8, and the post drew 767 comments. The Hacker News version of the argument: "NOBODY asked for a proprietary pogo pin usb cable", answered by "I charge mine every 3-4 months... Was expecting this to be a problem for me, but it turned out I do not care."

On September 10, Xteink said it is "working toward bringing USB-C back as an option in future products. That work has already started." No model or date.

There's also a regulatory angle. Under the EU's common-charger rules, e-readers have been on the list of devices that must support USB-C charging since December 28, 2024. Xteink sells its pogo-only models to EU customers from its own store in euros. Owners have argued about what that means; no enforcement action has been reported.

In practice, if you pick a pogo model, buy a spare cable or adapter. CrossPoint's own devices page lists several among its accessories.

If you want apps: full-OS pocket readers

If you want the Kindle, Kobo or Libby apps on the device itself, you need Android, and the price jumps. The cheapest options sold with a Western warranty are 6-inch slabs rather than pocket devices: the Bigme B6 ($159, Android 14) and the Musnap Neo ($169, the international brand of China's iReader). BOOX's Go 6 Gen II is $199.99 and has just been updated from Android 11 to 13. PocketBook's Q, a 5.84-inch Linux reader due in Europe this quarter at €199, is the closest thing to a polished pocket reader without Android.

Phone-shaped Android readers start at around $219 (Bigme's HiBreak S e-ink phone) and run through the Viwoods AiPaper Reader ($279) and DuRoBo Krono ($279.99) to BOOX's Palma 3, announced September 15 at $339.99 and not yet shipping. One sustainability signal worth checking in this tier is Android version upgrades. DuRoBo took the Krono from Android 13 to 15, and BOOX just moved the Go 6 Gen II from 11 to 13, but the original BOOX Palma, from 2023, is still on Android 11.

Why not just buy a Kindle or a Kobo?

For a lot of people, that's still the right answer. A $150–170 six-inch reader gives you a 300 ppi screen, a frontlight as standard (with warm light and waterproofing on the Kobo Clara BW), a bookstore, library lending, PDF support, and a long update commitment: Amazon lists security updates for the current Kindle until at least the end of 2030. One Hacker News commenter's verdict on the X3: "Your decade old Kobo is going to be a better reader than this."

The differences are in what you own and how you get books onto it. The Kindle takes your own EPUBs only through Amazon's Send to Kindle service, which converts them in Amazon's cloud, and Amazon removed the option to download purchased books over USB in February 2025. The Kobo reads EPUB natively over USB, can be set up without an account through a documented sideload mode, and runs KOReader. PocketBook's Verse Lite ($129 in the US, around €100 in Germany) reads the widest range of formats but gives up page buttons and warm light.

And there's weight and price: a pocket reader is a third of the weight and, at list price, costs between a third and three-quarters as much. Amazon's Prime Big Deal Days start October 6, and early Kindle bundle deals were already live on September 29, so compare prices on the day you buy.

What to buy

If you already own an X4 and it works, keep it. Nothing here is an upgrade worth its price unless you want a frontlight.

The reassuring thing about this category is how little it costs to be wrong. Your books are EPUB files on a card you can move to the next device, your reading position syncs through an open server, and the same firmware runs on most of the hardware. The thing to watch over the next few months is whether that stays true: whether BOOX's retail units flash as easily as its review samples, whether Xteink's USB-C promise turns into a product, and whether the manufacturers now shipping CrossPoint under their own names keep giving back to the project that made their hardware worth buying.