Skip to main content

These Jolla battery covers automatically change your ringtone and theme

When Jolla announced its Sailfish OS smartphone last year, much was made about the Other Half rear covers. These smart panels offer much more than the familiar, interchangeable cosmetic covers seen on phones for many years. They use NFC to connect to the phone, and can deliver new content or even add new features to the device. At launch, Jolla talked up the possibility of a slide-out QWERTY keyboard, or a large additional flash unit as potential Other Half cases.

While neither of these have arrived yet, Jolla has put the first two examples of alternative Other Half covers on sale through its own website. There are two versions available, and while they don’t add an amazing new feature, they still do more than your average rear panel. The first is the Keira Black cover, which comes in a cool flat black, while the other is simply called Aloe, and is a subtle shade of green.

Fix either of them to your Jolla phone and you’ll instantly get an exclusive, specially created ringtone and other unique system sounds, plus new wallpaper which fits in with the theme of the cover. Made from scratch resistant polycarbonate, the Other Half covers cost 30 euros each, or around $40. Although this sounds quite expensive for a piece of plastic, don’t forget they have NFC built-in, and come infused with all-new content.

Jolla has also released a developer kit for its Other Half covers, so creative types can get to work building their own versions. It’s from here where the really innovative Other Half panels will come, or so Jolla hopes. The Jolla phone is available to purchase online, but only for delivery in Europe, and has been priced at the equivalent of $550.

Andy Boxall
Andy is a Senior Writer at Digital Trends, where he concentrates on mobile technology, a subject he has written about for…
Everything you need to know about the OnePlus 13
Official OnePlus 13 product renders showing rear panel colors.

OnePlus is an excellent brand that offers powerful flagship phones at a great value compared to some of its competitors. We followed every rumor about the OnePlus 13 for months, but now it's here — and it's everything we hoped for. It might not be available in the Western market yet, but it will be soon.

So, what makes the OnePlus 13 so special? Here's everything you need to know about OnePlus' latest flagship.
When is the OnePlus 13 being released?

Read more
Qualcomm Snapdragon 8 Elite vs. MediaTek Dimensity 9400: the race is on
Comparison of Qualcomm Snapdragon 8 Elite and MediaTek Dimensity 9400 processors.

The flagship mobile silicon race has entered its next phase, one that will dictate the trajectory of Android hardware heading into 2025. Merely weeks after MediaTek wowed us with the Dimensity 9400 system on a chip (SoC), Qualcomm also pulled a surprise with the reveal of the Snapdragon 8 Elite.

But this time around, the battle is not as straightforward. Where MediaTek is working closely with Arm and adopting its latest CPU and graphics innovations, Qualcomm has firmly put its faith in custom cores. These are no ordinary cores, but a next-gen iteration of the same fundamental tech stack that powers Windows on ARM laptops.

Read more
Discolored line on your new Kindle? You aren’t alone
Amazon Kindle Colorsoft Signature Edition on a table.

The new Kindle Colorsoft Signature Edition is the first full-color e-reader, and a lot of bookworms couldn't wait to get their hands on it. Sadly, many people are reporting the display has a discolored yellow area at the bottom of the screen. The problem is so widespread that the Kindle Colorsoft dropped to an average review rating of 2.6 out of 5, although it does remain the bestselling e-book reader at the moment.

The cause of the discoloration isn't clear. Some users report that it only happens when using the edge lighting feature on the Kindle, while others say it appeared after a software update. Either way, the yellowing is a problem, especially on a device that Amazon has marketed as being great for comics and graphic novel fans. It's hard to enjoy the colorwork in a comic when it's distorted.

Read more