Xteink X4 hands-on: This is an e-reader for people who dont read

As Mashable's go-to BookTok, Kindle, and e-reader expert , it's my job to vet new products and know what's a gimmick and what's actually worth your money.

The Xteink X4 e-reader is a mini e-reader that supposedly fits on the back of your phone.

It's a solid idea: a mini Kindle you can slap on like a PopSocket and keep in your pocket.

I've seen lots of people online excited about using the device as a companion to their Kindle.

But the Xteink X4 is not going to be my new Kindle companion.

It may be trendy, but after trying the company's e-readers for myself, I was left with one question: "What am I missing?" I tested the Xteink X4 e-reader, read all the rave reviews about it, and downloaded firmware to make the user interface smoother, but I just don't think the Xteink X4 e-reader is worth your money.

It's not because of its design or performance, both of which I think are solid.

The device's limited file support is what holds it back.

Xteink X3 mini e-reader $69 at Amazon $79 Save $10 Learn More at Amazon Learn More at Xteink Xteink X4 pocket e-reader $69 at Amazon Learn More at Amazon Learn More at Xteink I read on a Kindle Paperwhite , and the books I consume are either borrowed from Libby , purchased in the Kindle Store, or advanced copies downloaded from NetGalley.

None of those file types works on the Xteink X4 e-reader.

To enjoy the Xteink X4 e-reader to its fullest potential, you need to be someone who exclusively reads DRM-free EPUB files .

Since I don't think that's most people, the Xteink X4 e-reader isn't going to work for most people.

But I don't blame Xteink for its impracticality; instead, it's a symptom of the current state of e-books.

SEE ALSO: Where to get free e-books: Load up your e-reader without spending a dime The issue of DRM-protected files You'll be primarily reading the classics on the Xteink X4.