The Xteink X3 is a smaller, thinner e-reader than the X4 with refined software and improved magnetic mount.
Its extreme portability is compromised by a magnetic pogo-pin charging port instead of USB-C, which is a major drawback.
The X3 fits better on an iPhone 16 Pro than the X4 but has weak magnets that cause it to fall off easily.
Despite improvements, the charging method and weak magnets make it a potentially deal-breaking upgrade.
📖 Full Retelling
There’s a new smallest e-reader in my life. The Xteink X3 is even smaller and thinner than Xteink’s X4 while also improving on the X4 with refined (but still far from great) software, simplified buttons, and an improved magnetic mount on the back. It’s a better compact e-reader than the X4 if extreme portability is your priority, but its slimmer design comes at a terrible price that’s a potential deal-breaker. Instead of a USB-C port, the X3 charges through an uncommon magnetic pogo-pin connection.
That was a heartbreaking discovery while unboxing the new X3 because it actually comes with a handful of improvements that make it a solid upgrade. The X3 is a millimeter thinner, a few millimeters narrower, and over half an inch shorter than the X4. It’s much closer in size to a credit card, but while the X3 is just a bit too big to squeeze inside my slim wallet, I can slip the two into my pocket without noticing any added bulk.
When the X4 first popped up last December, it wasn’t just its size that caught our attention. Xteink promoted the X4 with images of it stuck to the back of a smartphone like a MagSafe battery, seemingly promising an e-reader that went everywhere your phone did and a more versatile alternative to e-reader cases . But the odd positioning of the magnets on the back of the X4 and its size prevented it from properly piggybacking on my iPhone 16 Pro without resorting to applying adhesive metal rings and having it awkwardly hang off the bottom.
I was thrilled to find the X3 fits perfectly on the back of my iPhone 16 Pro, and then once again disappointed to discover its magnets aren’t strong enough to keep it securely in place. Magnetic accessories like PopSockets or the OhSnap Snap Grip have a satisfying “thunk” when attaching them to your phone. Attaching the X3 to my 16 Pro feels more like the devices are exchanging a weak hug. They don’t remain aligned when holding the two together, and on several occasions the X3 fell off my p
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Technology, Product Review
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Deep Analysis
Why It Matters
This news matters because it highlights the trade-offs in consumer electronics miniaturization, affecting tech enthusiasts, frequent travelers, and e-reader users who prioritize portability. The Xteink X3's flawed magnetic charging system creates compatibility issues and inconvenience for users who rely on universal USB-C standards. This development is significant for the competitive e-reader market where companies balance innovation with practical usability, potentially influencing future product designs across the industry.
Context & Background
Xteink previously released the X4 e-reader in December, which gained attention for its compact size and magnetic mounting capabilities
The e-reader market has seen increasing competition with companies experimenting with form factors beyond traditional tablet-sized devices
Magnetic mounting systems have become popular with smartphone accessories following Apple's MagSafe introduction in 2020
USB-C has become the universal charging standard for most modern electronics, making proprietary connections increasingly unpopular
What Happens Next
Xteink will likely face customer feedback about the magnetic charging limitation, potentially leading to a revised version with USB-C. Competitors may release similar credit card-sized e-readers with standard charging ports to capitalize on this market gap. The company might offer accessory solutions like magnetic-to-USB-C adapters, and tech reviewers will continue testing whether the portability benefits outweigh the charging inconvenience for different user groups.
Frequently Asked Questions
What is the main advantage of the Xteink X3 over the previous X4 model?
The X3 is significantly smaller and thinner than the X4, making it closer to credit card dimensions and more portable. It also features improved magnetic mounting that better fits modern smartphones like the iPhone 16 Pro, addressing one of the X4's key limitations.
Why is the magnetic charging system a problem for users?
The proprietary magnetic pogo-pin connection requires carrying a specific cable instead of using universal USB-C chargers. This creates inconvenience when traveling or in situations where users need to charge multiple devices with standard cables, potentially leaving the e-reader unusable if the special cable is lost.
How does the magnetic mounting compare to other smartphone accessories?
The X3's magnets are significantly weaker than popular accessories like PopSockets or OhSnap grips, resulting in insecure attachment that can cause the e-reader to fall off. Unlike accessories that create a firm 'thunk' connection, the X3 provides only weak magnetic force that doesn't maintain proper alignment.
Who would benefit most from this e-reader despite its flaws?
Extreme portability seekers who prioritize size over convenience would benefit most, particularly those who carry minimal gear and don't mind proprietary charging. Users who frequently slip devices into pockets or small bags and value discreet reading options might accept the trade-offs for the compact form factor.
How does this affect the broader e-reader market?
This development shows manufacturers are pushing size boundaries but may compromise on standard features. It could influence whether other companies adopt similar miniaturization approaches or maintain standard ports, potentially creating a niche market segment for ultra-compact reading devices with varying feature sets.
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Original Source
Tech Gadgets Reviews This even smaller credit card-sized e-reader has one tragic flaw Xteink made an even smaller and thinner e-reader by unfortunately skipping a USB-C port. Xteink made an even smaller and thinner e-reader by unfortunately skipping a USB-C port. by Andrew Liszewski Apr 2, 2026, 1:34 PM UTC If you buy something from a Verge link, Vox Media may earn a commission. See our ethics statement. Andrew Liszewski is a senior reporter who’s been covering and reviewing the latest gadgets and tech since 2006, but has loved all things electronic since he was a kid. There’s a new smallest e-reader in my life. The Xteink X3 is even smaller and thinner than Xteink’s X4 while also improving on the X4 with refined (but still far from great) software, simplified buttons, and an improved magnetic mount on the back. It’s a better compact e-reader than the X4 if extreme portability is your priority, but its slimmer design comes at a terrible price that’s a potential deal-breaker. Instead of a USB-C port, the X3 charges through an uncommon magnetic pogo-pin connection. That was a heartbreaking discovery while unboxing the new X3 because it actually comes with a handful of improvements that make it a solid upgrade. The X3 is a millimeter thinner, a few millimeters narrower, and over half an inch shorter than the X4. It’s much closer in size to a credit card, but while the X3 is just a bit too big to squeeze inside my slim wallet, I can slip the two into my pocket without noticing any added bulk. When the X4 first popped up last December, it wasn’t just its size that caught our attention. Xteink promoted the X4 with images of it stuck to the back of a smartphone like a MagSafe battery, seemingly promising an e-reader that went everywhere your phone did and a more versatile alternative to e-reader cases . But the odd positioning of the magnets on the back of the X4 and its size prevented it from properly piggybacking on my iPhone 16 Pro without resorting to applying adhesive...
