Xteink X4 Review: Honest Pre-Purchase Reality Check

This honest Xteink X4 review exists because of one gap: the same week someone posted “The agony and the Xteink,” another owner wrote “this little guy singlehandedly got me out of my reading slump.” Same $69 device. The difference is almost always whether the buyer knew, before ordering, that the X4 has no DRM support (so no xteink Libby loans), no USB file transfer, and no backlight.

This is the picture I wish I’d had: what trips people up, what’s genuinely better than expected, how the X4 compares to the smaller X3, and a plain answer to whether you should buy now or wait for the rumored S4.

The Problem: Why So Many X4 Buyers Get Blindsided

The X4 recently became the first non-Kindle e-reader to crack Amazon’s top-10 e-reader sales chart (June 2026), even outselling the Kindle Colorsoft for a stretch. That surge pulls in mainstream buyers who expect it to behave like a Kindle or Kobo. It doesn’t, and the mismatch is systematic enough that the subreddit sees the same confused day-one posts every week.

When it lands for the right person, though, the payoff is the reason it sells:

The gap between that owner and the frustrated one is almost never the hardware. It’s whether they knew, before ordering, what the X4 will and won’t do. Three questions decide it. Answer them before the package arrives, not after.

If any of those matter, keep reading; there’s often a path. But you want to know first.

What Trips People Up

The day-one "wait, what?" list

None of these is a defect; they’re design choices that surprise anyone arriving from a Kindle.

No DRM, so no Libby, no Kindle library. The X4 has no DRM support, and that’s a design decision, not a missing feature they plan to add. Kindle store books, Libby and Overdrive loans (DRM-protected EPUBs), and most retailer purchases won’t open unless you specifically chose DRM-free at checkout. If Libby is the main reason you use an e-reader, the X4 is the wrong device and the upcoming S4 (Android) is the one to watch. For your own library, the cautious path is to start with DRM-free EPUBs, legally de-DRM only books you own, and test three to five titles before committing your whole collection.

What does work perfectly: EPUB and TXT files you already own DRM-free, Project Gutenberg, Standard Ebooks, fan fiction, personal documents, and Calibre-managed libraries that are already DRM-free.

“I like knowing I own my books so I can move them from device to device.” (Ana, The Well-Appointed Desk)

USB doesn’t transfer files. The USB-C port charges only; the device never mounts as a drive, so you can’t drag files in Finder or File Explorer. This surprises nearly every new owner on day one. Three methods actually work: copy EPUBs to /books on a microSD card; use the built-in WiFi web interface (the device runs a small local server you open in a browser); or use the official Calibre plugin for wireless sync. Xteink’s official XT-Cloud book-sync service and Companion App (iOS/Android) are a further option once you’ve set up an XT-Cloud account.

My first attempt was plugging in the cable and waiting for a drive to appear. It never did. The WiFi browser method turned up about twenty minutes later and was genuinely fine, just nothing like what I expected. The method isn’t hard once you know it exists.

A microSD card warning. The bundled SD card, when one is included, can be unreliable and is a common culprit behind reading progress that won’t save and books that won’t load. If anything acts flaky, swap to a known-good card formatted as FAT32 (only cards larger than 32GB need exFAT). Reformatting and re-copying your /books folder resolves a surprising share of “my X4 is broken” reports.

The 4.3-inch screen is fragile. This is the costliest surprise, so it gets its own warning.

The good news: the community has documented successful panel replacements, so a cracked screen isn’t automatically a dead device. To avoid getting there:

• Use only a slim PET/matte protector. A thick rigid-glass one can crack the panel it’s meant to protect.
• Clip lights should never clamp across the screen. Hook them to a case edge or aim a separate light from a distance.
• A case adds real protection on a device this thin; edge knocks a phone case would absorb can crack a bare X4.
• Don’t leave it loose in a bag with keys. Abrasion damage is a regular thread type.

Battery percentage can look erratic. A known open firmware issue makes the reported battery percentage jump around. It’s cosmetic (actual runtime is still excellent), and the simple workaround is to hide the battery percentage in the reader’s display settings.

The Firmware Situation (and the Backlight Workaround)

The X4 ships with Xteink’s stock firmware. Stock reads books, but it’s sparse: limited fonts, no reading stats, basic EPUB rendering. Most owners switch to CrossPoint within a week or two: open-source community firmware (~5,500 stars, current stable 1.3.0) with better fonts, reading stats, a cleaner layout engine, and a growing extension set. Nearly every review describing a great reading experience was describing CrossPoint, not stock. Flashing takes about five minutes in Chrome via a web flasher, no software install needed. CrossPoint is the sensible default; the alternatives below only matter if one of them fits a specific need:

There is no hardware backlight, but if you have a white X4 that washes out in direct sun, CrossPoint includes a “Sunlight Fading Fix” under Display settings that improves outdoor legibility. It’s the closest thing to a software answer for the missing xteink backlight: it won’t light a dark room, but it noticeably helps bright-light reading.

The lock question matters here. Since early May 2026, some units (mostly from Chinese domestic retail channels) ship with USB flashing disabled. A locked X4 still reads books on stock firmware; it just won’t accept CrossPoint via the normal path.

If CrossPoint is the whole reason you’re buying, the $10–15 you might save on AliExpress versus the official store isn’t worth a locked unit. CrossPoint has an OTA unlock tool that works on many locked X4s, but not all. Full details, including the two-minute arrival test: Is My Xteink Locked?

Better Than Expected, and How the X3 Compares

Now the upside, because the X4 earns its fans for real reasons.

The size is the point. Almost every first-week post lands on some version of “I worried it would feel too small, but the compactness is what makes it work.” The 4.3-inch screen is a real adjustment from a Kindle Paperwhite, but at 77 grams in a jeans pocket, “always with you” beats “bigger screen” for how much you actually read.

The battery runs for weeks. E-ink’s passive display means the battery barely moves. Universally reported, accurate, and it stops being something you think about.

The magnetic attachment works. The X4 sticks to MagSafe-compatible phone backs and rides along on a commute, so you grab it during dead minutes instead of digging through a bag.

Reading genuinely goes up. This is the real reason to consider one: the anti-doomscroll figures at the top of this review (first book in years; ten books in two weeks) are not outliers. The mechanism is plain: there’s nothing else to open on it, and it’s always with you, so the idle minutes that used to feed a feed turn into pages instead.

X3 vs X4: the question most buyers actually have. This is the most common follow-up, so here is the short version:

Full breakdown: Xteink X3 vs X4.

Should you wait for the S4 instead? The rumored Xteink S4 is reportedly Android-based with a touchscreen and backlight, expected around July 2026, which would let it run full apps including Libby. Treat every one of those specs as unconfirmed: nothing about the S4 is official yet.

Your Pre-Purchase Checklist

Run through these before you order so the device that arrives is the one you wanted.

Steps:

1. Confirm your reading sources are DRM-free (own EPUBs, Gutenberg, Standard Ebooks, fan fiction). If you depend on Libby or a Kindle library, stop and consider the S4 instead.
2. Accept that file transfer is WiFi, SD card, Calibre, or XT-Cloud, never USB drag-and-drop.
3. Decide between the smaller X3 and the 4.3-inch X4 using the X3 vs X4 guide.
4. If you want CrossPoint, buy from xteink.com or Amazon (not Taobao or risky AliExpress sellers) and read Is My Xteink Locked? first.
5. Budget for a case and a screen protector up front; the thin panel cracks under pressure a phone shrugs off.
6. Plan for a separate clip-on light (kept off the screen) since there’s no backlight, or rely on the Sunlight Fading Fix for bright-light reading on a white unit.
7. Have a known-good FAT32 microSD card ready in case the bundled card is flaky.
8. The day it arrives, run the two-minute lock test and work through the first-week setup checklist.

The Verdict

The X4 is a deliberately limited device, and whether that’s a feature or a dealbreaker depends entirely on you.

• Buy it now if you read DRM-free EPUBs, want a pocketable reader that’s always on you, and like the CrossPoint ecosystem; the anti-doomscroll, “first book in years” effect is real (the X4 is also on Amazon if you want easy returns).
• Wait for the S4 if Libby, a backlight, a touchscreen, or keeping your Kindle library is non-negotiable.
• Pick the X3 instead if you want the smallest possible reader with NFC, and don’t need USB-C or the wider firmware support.

Whichever way you lean, the worst outcome is buying blind, so start with the X3 vs X4 comparison, check Is My Xteink Locked? before ordering, and keep the first-week setup checklist open the day it arrives. Comparing all three? See X4 vs S4 vs X4 V2 Pro, and when you’re ready to flash, the CrossPoint install guide covers every path including locked-device recovery.

Quick Answers Before You Buy

Can I read Libby or Overdrive books on the X4?

No. Libby and Overdrive lend DRM-protected EPUBs, and the X4 (on stock or CrossPoint) cannot open DRM-protected files; there is no Libby app on the device. You can read titles you own outright or public-domain books; plan your library workflow around DRM-free sources. If Libby is essential, watch the rumored S4 instead.

Does the X4 have a backlight?

No. There is no front light, so you need ambient light: a lamp, daylight, or a clip-on light kept off the screen. CrossPoint's "Sunlight Fading Fix" helps a white X4 in bright sun, but nothing lights a dark room. If you read in bed with the lights off, that is a dealbreaker.

Can I just plug it in over USB and copy books across?

No. The USB-C port only charges; the device never mounts as a drive. Books go on via the built-in WiFi web interface, a microSD card's /books folder, the Calibre plugin, or Xteink's XT-Cloud. It's not hard once you know USB drag-and-drop isn't an option.

Why do people return the X4?

Almost always the DRM wall. Buyers expect their Kindle library or Libby loans to "just open," and they can't; only DRM-free EPUB and TXT files work. Knowing that before ordering is the single biggest predictor of whether you'll keep it.

Sources

• “The agony and the Xteink”: r/xteinkereader, June 15, 2026
• “XTEINK X4 screen broke after clipping a small reading light to the top”: r/xteinkereader, June 15, 2026 (143 points, 51 comments)
• “PSA: Don’t buy a cheap glass screen protector like me”: r/xteinkereader, May 20, 2026 (154 points, 38 comments)
• “My first week with the X4” (saved 8h 40m of doomscrolling, first book in years): r/XTEINK, June 12, 2026
• “This little guy singlehandedly got me out of my reading slump” (10 books in 2 weeks): r/XTEINK, May 31, 2026
• Microreader launch: r/xteinkereader, May 28, 2026 (491 upvotes, 135 comments)
• CrossPoint Reader
• Liliputing on Xteink firmware restrictions (early May 2026)
• Good e-Reader on the firmware lockdown
• “I like knowing I own my books”: Ana, The Well-Appointed Desk
• CrossPoint locked-device unlocker

Last updated: June 21, 2026. Restructured into richer elements (stats, compare, firmware-card map, screen-fragility warning, FAQ); corrected the screen-break thread count to 143 points / 51 comments and added the screen-protector PSA; softened unsourced Microreader and S4 specifics.