Xteink Updates Its Tiny E-Reader: Faster Wireless, Better Language Support

Xteink has released a software update for its X4 e-reader that fixes wireless connection problems and adds support for more languages. The update makes the device connect to your phone faster and more reliably, and adds 1,841 new characters to display different alphabets and symbols. It also improves how the screen shows photographs.

The X4 is one of the smallest e-readers on the market — it weighs 74 grams and is about as thick as a few credit cards stacked together. It costs $69, putting it in direct competition with cheaper Amazon Kindle models. The device has a magnet on the back so you can attach it to things. It connects to your phone through Xteink's own app, rather than working with other reading apps like you might use on a phone or tablet.

Fixing Wireless Connection Problems

The biggest issue the update addresses is Bluetooth — the wireless technology that lets e-readers talk to your phone. Users were experiencing freezes and dropped connections.

What likely happened is that the original software tried to save battery power by turning the wireless radio on and off very aggressively. That's a classic trade-off in tiny devices: you can either have reliable wireless, or you can have a battery that lasts a long time, and it's hard to have both. The update appears to strike a better balance.

This matters because the X4's battery is tiny — 650 milliamp-hours, about the size of a large coin — yet Xteink claims it lasts 14 days between charges. That's only possible if the wireless connection doesn't waste power. The update seems to have solved this problem.

Adding More Languages

E-readers display text using fonts — sets of character shapes. The X4 originally came with a limited font library. The update adds 1,841 new characters, which almost certainly means support for languages like Chinese, Japanese, Arabic, and others that use different alphabets.

Instead of downloading these fonts from the internet every time you read, Xteink built them into the device itself. That approach is faster and works even if you're offline. The downside is that you're limited to whatever languages and fonts Xteink decided to include. Other e-reader makers, like Amazon, store fonts in the cloud and let you choose from thousands of options — but that requires an internet connection and more storage space than a tiny device like the X4 can handle.

Better Photo Display

E-ink screens work by moving tiny particles under a glass surface to create black and white areas. When you want to show a photograph on an e-ink display, the device has to convert colors into shades of gray, and it does that by refreshing the screen multiple times in a specific sequence. If this process isn't done well, photos can look smudged or incomplete.

The update improves how the X4 handles photographs. This matters if you read PDFs with charts or graphics, or if you use your e-reader to look at comic books or illustrated books.

Who Is This Device For

The X4 is not a replacement for a standard e-reader like a Kindle. It's designed for people who want something small enough to carry anywhere — as thin as a smartphone case and light enough that you won't notice it in a backpack. That makes it useful for exercise equipment, car dashboards, or travel where weight matters.

The trade-off is screen size. A typical e-reader has a six-inch screen; the X4 is much smaller. Xteink has chosen to control its own software and app store, which means the company can optimize the experience for their hardware but also limits your choices for reading apps and sources.

What This Update Says

The fact that Xteink is releasing regular software updates is worth noting. Many budget electronics makers simply move on after they sell you a device. The fact that this company is still investing in improvements suggests they plan to support their products over time.

That said, the need for major fixes to wireless connection stability in a post-launch update does raise a question. It suggests the device was released before the engineering team had fully tested it. This happens often in fast-moving consumer electronics, particularly with smaller companies trying to get to market quickly, and it's a trade-off between speed and thoroughness that manufacturers face constantly.

The X4 represents one approach to standing out in a market where Amazon dominates: build something radically different rather than trying to compete head-to-head. Whether that strategy will work is still an open question. The e-reader market has largely split into two camps — Amazon's ecosystem on one side, and specialized devices for specific uses like note-taking on the other. Xteink's bet on extreme portability is another attempt at finding a defensible spot in that landscape.