It might look like a boring tablet, but an ereader is designed specifically only for digital versions of books, whether novels or comics, fiction or non-fiction. All ereaders – also called ebook readers – use a special display that makes reading in any kind of ambient lighting condition easy. These displays have a look that resembles the texture of paper (not the feel), and that's easy on the eyes.

Since they perform only a single task – display ebooks – they don't use powerful processors and can be slow to refresh. However, this doesn't affect the performance of an ereader and, in fact, allows the battery life to go on for weeks on a single charge.

An ereader typically comes with 8GB of storage, if not more, and can store hundreds of titles. That means you can carry your entire library with you on holiday.

Whether you need a dedicated ereader will depend on how much you read books and whether you're comfortable spending the extra money on a reading device. If you're an avid reader and keep buying new titles, you'll find that going digital can help you save on storage space for your books as well as save you money in the long run as ebooks are typically cheaper than the printed versions. Admittedly you'll be spending a decent chunk of change on the ereader itself, but you'll find that it pays for itself soon enough. Moreover, some ereaders allow you to borrow library books, which can save you even more.

And if you have the habit of reading during your morning commute, an ereader is a lot lighter than carrying an actual book.

It can be argued that reading on your phone or tablet is just as good, and while that's true for the most part, the e-paper screen on an ereader is designed to reduce eye strain. So if you read a lot before bed, it's definitely worth considering an ereader, particularly one that allows you to adjust its frontlight's temperature to warmer hues.

While the devices themselves are largely similar, there are a few differences between Kindles and Kobo ereaders. For starters, the former is widely available in any market Amazon operates in, but Kindles can lock you into Amazon's ecosystem by pushing you to purchase titles only from the Kindle Store.

Kobo also has its own bookstore accessible via its ereaders, but the ecosystem is a lot more open and sideloading books you already own is a lot easier. Kobo's file support is wider, as is its font support. In fact, you can even sideload Amazon's dedicated fonts like Bookerly and Ember if you prefer them.

Then there's borrowing library books – while both devices give you that option, Kindle users can only do so if they live in the US. If you happen to reside elsewhere, you might want to consider a Kobo, provided your local library has OverDrive support (you can ask them before you decide to buy an ereader).

Kobo devices are typically a little more expensive, but then you also get more device choices from the Japanese-Canadian ereader brand. And if you're after a note-taking device, we think Kobo is the way to go.

Find out more about how to choose between a Kindle and a Kobo ereader .

Pretty much everything about the two platforms is competitive, including pricing, so the choice of device ultimately rests on where you live and how you plan on getting your books.

If you plan on buying books from the device maker's service, both are great. We like the Kobo hardware and software a bit better here at TechRadar, but the Amazon Kindle Store is much larger.

If you'd like to borrow free books from your library, the Kobo is the better choice for more regions. Kindle devices can borrow from public libraries, but that service only works in the US currently. Kobo devices can borrow in the US, Canada, UK, Australia, New Zealand, Denmark, Finland, Norway, Sweden, Taiwan, Hong Kong and Singapore (be sure to check with the library of choice first though).

Moreover, at the time of writing, there are more Kobo models to choose from than Kindle, although there's no arguing that the latter is, hands down, the most popular brand and is synonymous with the word 'ereader'.

If your main source of reading material would ebooks from your local library, then it's best to opt for a Kindle or a Kobo device. Both with allow you to access your local library's ebook catalogue from anywhere (as long as you are connected to a Wi-Fi network), but keep in mind that Kindles only support borrowing from American libraries. If you live outside of the US, a Kobo would be a better option.

Kobo devices work with the OverDrive service that lets you borrow in regions including the US, UK, Australia, New Zealand and Singapore (amongst others). If you want to own your books, the Amazon marketplace is much larger than Kobo, and has a huge self-publishing component for finding independent authors.

As long as an ereader has Bluetooth connectivity, you should be able to pair a set of wireless headphones to listen to supported audio files. While brands like Onyx and PocketBook will allow you to sideload audio files, including audiobooks, Kindle and Kobo devices only support those purchased from their respective stores.

In fact, some Onyx and PocketBook ereaders have built-in speakers, so you may not even need headphones to listen. However, don't expect great sound quality from them because, like your phone, they're small drivers and the sound would be better via a connected pair of headphones.

Also keep in mind that audio files are typically larger than ebook formats, so if you're storing a lot of these on your device, you'll need to keep an eye on how much space you've got left.

Most ereaders will support some basic fonts natively and you won't need to tinker with them at all. However, if you do want to change things up, a Kindle or a Kobo is a good idea as they both make it easy to change fonts on the device.

You'll find that the Kindles have some custom fonts designed by Amazon, with Bookerly and Ember being the most popular ones. We found that the list of fonts on Kindles is extensive enough that we didn't find the need to sideload more, but you can if you need to.

Kobo devices also have their own set of default fonts, but there's no rule against sideloading more, including Amazon's own custom ones like Bookerly. And sideloading is as easy as plugging your Kobo ereader into a computer and moving your desired font to the device's fonts folder.

If you already own a tablet – whether an iPad or an Android – do you really need another device for reading digital books? An ereader has limitations, but for reading it can be far superior to a more extensible tablet.

1. E Ink technology
The main difference between an ereader and an iPad you will notice immediately. The ereader screen is almost always grayscale, using special E Ink technology that is very crisp and specialized for fonts and text. It refreshes relatively slowly and it sometimes leaves a trace (ghosting) that needs to be refreshed.

E-ink screens also don't flicker like a normal screen, making it more comfortable to read for a longer period of time.

2. Battery life
While you might hope to get a day of use out of your iPad, an ereader tablet measures battery life in weeks. Because the screen only refreshes when you turn the page, it draws very little power. Our favorite ereaders have a backlit screen, but those LED lights don't use much battery. If you read for 30 minutes a day or so, you can get a few months of battery life with our top pick devices.

3. Blue light filter
While dark mode has become quite common in recent times and many modern electronic screens automatically adjust their displays depending on ambient lighting, there's no filter to reduce blue light. The best ereaders, however, use front lights with a white to yellow hue that's  better for the eyes (and your sleep pattern) as compared to phones and tablets.

4. Affordable and convenient
If you are mostly reading books, an ereader tablet is a bargain over an iPad. The base model Amazon Kindle 2022 is a bare fraction of the price of an iPad or a Samsung Galaxy Tab, while large-screen ereaders like the Kindle Scribe and Kobo Elipsa can be had for an equivalent price or for not that much more than a base model iPad (depending on where you live). If books are your main thing, stick with an ereader and save money versus a tablet.