Xteink X4 Review: Why I Can't Stop Using this $79 E-Reader Device

Reading 30+ books annually and I've owned Kindles, Kobos, and high-end devices that cost four to five times more. The Xteink X4 shouldn't be my go-to choice. The 4.3-inch display looks basic compared to modern screens. The interface feels clunky. The build quality won't win awards even though it does feels sturdy.

But here's the thing: I actually carry it everywhere and every moment I have some time to waste or have the itch to doom scroll, I read a couple pages of whatever book I'm reading.

The battery runs for weeks. The ultra-portable design disappears into any pocket. Most importantly, it eliminates the friction that keeps other e-readers sitting at home when I need them most.

The device has real limitations. Some are genuinely annoying. But those flaws haven't stopped me from using it daily for months.

If you're tired of leaving your e-reader behind, this budget device might solve a problem you didn't know you had. For me personally, this has been my ultimate anti-doom scroll device.

Buy from AliExpress

What Is the Xteink X4 E-Reader and Key Specs

4.3-Inch E-Ink Display in a Credit Card Form Factor

The Xteink X4 centers around a 4.3-inch E Ink display with 220 PPI resolution and 480 x 800 pixel dimensions. That pixel density falls short of the 300 PPI standard most modern e-readers offer, meaning text won't look quite as sharp. But the screen quality works fine for extended reading sessions. The display measures 114 × 69 × 5.9 mm (4.49" × 2.72" × 0.23")—genuinely pocket-sized rather than marketing speak.

Weighing only 74 grams, this thing feels lighter than most smartphones. Slip it into your shirt pocket, jeans, or jacket without noticing the bulk. The ESP32 processor with 128 MB of RAM provides enough power for its focused reading purpose. Wi-Fi 2.4 GHz and Bluetooth wireless technology handle file transfers without cables.

The magnetic ring on the back supposedly lets you attach it to a phone using MagSafe. That feature has practical limitations I'll cover later. What matters more: the ultra-thin profile and featherweight design make this something you'll actually carry everywhere.

Physical Buttons Instead of Touchscreen

Navigation happens entirely through physical buttons. Three pairs of buttons sit strategically across the device. Page navigation controls live on the right side. The right side of the front screen houses duplicate navigation buttons for different grip positions. The left side of the front screen contains 'Yes/No' confirmation buttons.

This button-only approach takes adjustment, especially if touchscreen gestures feel natural. Some buttons serve dual functions depending on which part you press. The tactile feedback surprises me for a device at this price point. Each press feels crisp and responsive, comparable to physical buttons on older Nokia phones.

Xteink deliberately skipped touchscreen functionality. No tapping, swiping, or pinching to zoom. This limitation forces a distraction-free reading mode with no temptation to interact beyond turning pages.

32GB MicroSD Card Storage and Battery Life

Each device ships with a 32 GB microSD card that supports expansion up to 512 GB. Files load via the microSD card or through WiFi transfer. Supported formats include:

• EPUB and TXT for documents
• JPG and BMP for images
• BIN for custom fonts

PDF, AZW3, and MOBI formats won't work without conversion.

Battery performance stands out given the compact size. The 650 mAh battery delivers up to 14 days of use based on 1-3 hours of daily reading. Real-world experience confirms this claim. Reading about an hour daily, you easily get well over a week on a single charge. USB-C charging means no proprietary cables. Standby drain stays minimal, making the device perfect for intermittent use throughout the day.

The device lacks a front light, so nighttime reading requires external lighting. This omission keeps costs down and battery life up.

Price Point: $50-$79 Depending on Source

The official Xteink website lists the device at USD 69.00. AliExpress listings from various sellers offer alternatives, though devices from that platform may come with Chinese firmware requiring language switching during initial setup. Functionally, the Chinese and international firmware versions don't differ significantly.

The magnetic case costs an additional $8.99, and a magnetic reading light adds another $9.99. Even basic Kindle and Kobo models cost more, though they offer touchscreens, integrated lighting, and access to dedicated bookstores. Accessories remain optional, but the base price positions this as an accessible entry point for minimalist reading.

Why Size Matters: The Ultra-Portability Advantage

Fits in Any Pocket Without Bulk

Portability means nothing if you still leave the device at home.

I tested this theory for two weeks, carrying the Xteink X4 in different clothing. It disappears into my jeans front pocket alongside keys and wallet. My shirt pocket holds it without sagging. Even slim-fit jacket pockets accommodate the device without visible bulges.

This form factor solved a problem I didn't realize existed. My Koba Libra Colour stayed home more often than not because grabbing it required conscious effort. The X4 lives in my pocket by default. Waiting rooms become reading time. Coffee shops turn into chapter breaks.

Here's an unexpected bonus: discretion.

Pulling out a traditional e-reader during meetings broadcasts disengagement. The X4 resembles a phone at first glance, allowing stealth reading without drawing attention. Nobody questions someone checking their phone, even if you're actually three chapters deep into a novel.

MagSafe Attachment Reality vs Marketing

Xteink promoted the magnetic attachment heavily when announcing the device last December. Marketing materials showed the X4 stuck to an iPhone back, suggesting seamless dual-screen reading.

Reality disappointed.

The magnet positioning makes practical attachment impossible with my iPhone 16 Pro. The magnets sit in weird locations that don't align with MagSafe standards. At 4.3 inches, the device extends longer than most iPhones except the largest Pro models.

Xteink includes adhesive magnetic rings as a workaround. You stick these onto your phone case, creating custom attachment points. This functions adequately but defeats the plug-and-play convenience the marketing suggested. The upcoming X3 model reportedly addresses magnet placement issues.

For practical use, I ignore the magnetic feature entirely. The device works better as a standalone pocket companion than a phone accessory.

Always-On-You Reading vs Leaving Devices at Home

E-readers offer fantastic reading experiences until you forget them on your nightstand.

The friction of remembering, packing, and carrying a dedicated device creates missed opportunities. I've owned premium e-readers that spent more time charging than being read because I habitually left them behind.

The X4 eliminates this friction through pure portability. Weighing 74g and measuring thinner than most smartphones, it becomes an always-present option. Commutes become reading sessions. Work breaks shift from scrolling to actual books.

This constant availability increased my reading substantially. The device stays accessible when reaching for a larger e-reader would feel inconvenient.

Weight Comparison: Lighter Than Your Smartphone

Most smartphones weigh 170-200 grams. My Koba Libra Colour weighs 200g. The Hisense Hi Reader hits 183g. Even the compact Xiaomi InkPalm 5 Mini Pro weighs 115g.

The X4's 74g weight undercuts every competitor. This isn't just lighter—it's noticeably lighter in daily carry. The difference becomes apparent after hours in your pocket, where heavier devices create constant weight awareness.

Your pocket barely knows it's there.

Setting Up Your Xteink X4: From Unboxing to First Book

Language Settings and Initial Configuration

The box contains the device, a USB-C cable, and a pre-installed 32GB microSD card. Charge it for about 30 minutes before your first use.

Power it on and you'll hit language selection immediately. If you bought from certain sellers, expect Chinese firmware that requires menu navigation to switch languages. The interface supports English, Japanese, and Chinese.

WiFi setup happens through the settings menu. Bluetooth exists but serves little purpose for basic reading. Fair warning: the stock firmware crawls through menus at painful speeds. I'll show you how to fix that.

Loading Books: MicroSD Card Method

You need DRM-free EPUB or TXT files. Amazon and Barnes & Noble books won't work due to DRM restrictions. Project Gutenberg offers thousands of legal, public domain EPUBs without restrictions.

The physical method: remove the microSD card, pop it into your computer's card reader, and copy EPUB files directly. Reinsert the card and your books appear in folder view. Organize however you want. Most people create author folders with series subdivisions.

Simple. Effective. No wireless headaches.

WiFi Transfer as an Alternative Option

Connect your X4 to WiFi, then activate hotspot mode. Your computer connects to this hotspot, and typing the displayed IP address into a browser opens a file upload interface. Upload EPUBs directly through the web interface.

The stock firmware's "Upload from Phone" feature displays "Feature in development" when selected. Chinese firmware versions offer slightly better wireless functionality, though the interface remains clunky.

Xteink X4 CrossPoint Firmware: Why You Should Flash It

CrossPoint firmware changed everything for me.

The stock software made my X4 nearly unusable. Menu navigation felt like wading through mud. After flashing CrossPoint, the device became genuinely responsive. Page turns now happen instantly rather than after noticeable delays.

CrossPoint adds improved text formatting, more font options, better transfer tools, and additional language support. The WiFi transfer feature moves from buried settings to the home page. This open-source replacement fixes the format limitations and interface problems that plague the default software.

How to Install CrossPoint in Under 20 Minutes

You need Chrome browser. The process takes under 20 minutes. Follow the guidelines from the GitHub repository and you should be good to go.

Connect your X4 via USB-C, navigate to the CrossPoint installation webpage, click "Flash CrossPoint firmware," then reset your device. That's it.

I made this harder than necessary. Initially, I plugged in just the microSD card instead of the actual device. When the X4 appeared as a debug device, I wasted time troubleshooting, but it worked perfectly in that mode. Once I stopped overthinking, installation completed smoothly.

Flash CrossPoint immediately. The stock firmware isn't worth your patience although they are making improvements.

Real-World Reading Experience: The Good and The Flawed

Screen Quality and Refresh Rate Performance

The 220 PPI display works fine for reading, though it won't blow you away with sharpness. Text looks clear enough for extended sessions. The screen refresh is more noticeable than modern Kindles. Each page turn flashes the entire screen—initially distracting, but you stop noticing after a few chapters.

Some users report screen fading in bright sunlight, though a quick refresh fixes this. I haven't had persistent problems reading outdoors.

Button Navigation: Learning Curve and Tactile Feedback

Everything happens through six physical buttons. Each button has two clickable areas depending on where you press. Typing a WiFi password using only these buttons will test your patience. The first few days feel clunky.

The buttons themselves surprised me. For a cheap device, they deliver excellent tactile feedback. The clicks feel crisp and responsive, matching quality phones from years past. Once you develop muscle memory, navigation becomes automatic.

Format Limitations: EPUB Only Support

The device only accepts EPUB files. No PDFs, no AZW3, no MOBI without conversion first. My library was mostly MOBI and AZW3, so I spent time converting everything through Caliber. Extra work, but manageable given the portability payoff.

Text Formatting Issues and Workarounds

Text styling creates the biggest frustration. Paragraph indents, italics, bold, and underlining display wrong or disappear entirely. Books with song lyrics in italics render as plain text, making some passages confusing. Images don't show up. Table of contents links don't work. The CrossPoint firmware fixes many of these problems.

Battery Life in Daily Use

Battery life measures in weeks, not days. Users report 2-4 weeks between charges with regular reading. My experience matches this. Reading an hour daily, the battery indicator barely budges. E-Ink efficiency shines here, though WiFi and Bluetooth drain faster when active.

No Backlight: Using the Magnetic Light Accessory

You can't read in complete darkness without external lighting. The official magnetic reading light costs $9.99 and offers three color temperatures with brightness adjustment. Light distribution across the screen appears uneven. The magnetic attachment feels less secure than expected, especially compared to how firmly it grips the flip case.

Why I Choose This Over My $400 E-Reader

The Minimalist Reading Philosophy

Ten different e-readers sit scattered around my home. The Xteink X4 gets used most.

The appeal isn't technical sophistication. It's intentional simplicity. This device strips reading down to its essence without app stores, productivity tools, or connectivity temptations. No web browser to fall into rabbit holes. No note-taking apps to distract from the story. Just books.

That constraint feels liberating rather than limiting.

Reduced Decision Paralysis with 20-Book Limit

The X4 tracks only your 20 most recent titles. This limitation removes choice paralysis entirely.

My Kindle displays an endless list of half-finished books, abandoned series, and impulse purchases. Scrolling through hundreds of options creates decision fatigue before I even start reading. The X4 forces focus through constraint. You see your current books, pick one, and read it.

Reading becomes intentional rather than overwhelming.

Price-to-Value Analysis: AliExpress vs Direct Purchase

AliExpress sellers offer the device for around $44. Direct purchase from Xteink costs $69 with potential $15-$25 price differences.

AliExpress units typically arrive in 3-7 days but may require language switching. Direct orders take longer, sometimes 3 weeks, with inconsistent customer support. For the price difference, I'd choose AliExpress and deal with the minor setup inconvenience.

Buy from AliExpress

Accessories Worth Considering

Available accessories include:

• Magnetic cover: $9
• Clip-on reading light: $10
• Screen protectors: $4
• Protective polycarbonate case: 14g weight

The magnetic cover feels essential if you're throwing this in pockets with keys. The reading light solves the biggest functional limitation.

When Premium Features Don't Matter

My €239 Koba Libra Colour offers superior specs in every measurable way. Better screen. Faster processor. More storage. Some App support. Premium build quality.

Yet the X4 accomplishes the same core function at a fraction of the cost. Premium features become irrelevant when portability drives usage. The best e-reader is the one you actually carry and use daily.

Sometimes cheaper wins by being simpler.

Conclusion

The Xteink X4 costs around $70, feels cheap in places, and lacks features my other e-readers offer. The screen refresh rate isn't great, formatting issues persist even after flashing CrossPoint, and that magnetic attachment barely works.

Yet I reach for this device more than my €239 Koba Libra Colour.

The ultra-portability changed my reading habits completely. It lives in my pocket, travels everywhere, and turns random moments into reading time. That matters more than premium specs sitting unused at home.

You won't get premium build quality or advanced features at this price. What you get instead is something you'll actually carry and use daily.

For me, that trade-off makes perfect sense.

The best e-reader is the one in your pocket when you need it most.

Buy from AliExpress

Key Takeaways

The Xteink X4 proves that ultra-portability can trump premium features when it comes to building consistent reading habits.

• Size drives usage: At 74g and credit card dimensions, the X4 fits any pocket and eliminates the friction of remembering to carry a reading device.

• Flash CrossPoint firmware immediately: The stock software is sluggish, but CrossPoint transforms performance and adds essential features in under 20 minutes.

• Embrace the limitations: EPUB-only support and 20-book display limit reduce decision paralysis and force intentional reading choices.

• Price-to-portability ratio wins: At $50-79, this device delivers the core reading experience without premium features you might not actually need.

• Always-available beats premium specs: Having a readable device in your pocket consistently outperforms leaving a $400 e-reader at home.

The X4's success lies not in what it offers, but in removing barriers to reading. Sometimes the best device is simply the one you'll actually use every day.

FAQs

Q1. How long does the Xteink X4 battery last with regular use? The battery can last between 2-4 weeks depending on your reading habits. With about an hour of daily reading, you can easily get well over a week on a single charge. The 650mAh battery is remarkably efficient thanks to the E-Ink display technology, though using WiFi and Bluetooth will drain it faster.

Q2. Can I read on the Xteink X4 in the dark without external lighting? No, the device does not have a built-in backlight, so you'll need an external light source to read in darkness. You can purchase the official magnetic reading light accessory for around $10, or use a headlamp or room light. This design choice helps keep the device lightweight and extends battery life.

Q3. What file formats does the Xteink X4 support? The device primarily supports EPUB and TXT files for reading. It does not support PDF, AZW3, or MOBI formats directly, so you'll need to convert those files using software like Caliber before loading them onto the device. After installing the CrossPoint firmware, EPUB support and formatting improve significantly.

Q4. Is it worth flashing the CrossPoint firmware on the Xteink X4? Yes, flashing CrossPoint firmware is highly recommended and takes less than 20 minutes. The stock firmware can feel sluggish, but CrossPoint dramatically improves performance with faster page turns, better text formatting, more font options, and enhanced WiFi transfer features. The installation process is straightforward using a Chrome browser and USB-C connection.

Q5. How does the Xteink X4 compare to reading on a smartphone? While a smartphone is the lightest option if you already carry one, the Xteink X4 offers several advantages. The E-Ink display is much easier on your eyes, especially for extended reading sessions or before sleep. At 74g, it's lighter than most phones, and the distraction-free experience with physical buttons helps you focus solely on reading without notifications or app temptations.