Skip to main content

The world’s thinnest smartphone fits alongside your business cards

While most of us are perfectly happy with our smartphones, some prefer something a little more compact and pocketable. For those people, Japanese company Kyocera has come up with a device that it’s billing as the “thinnest smartphone in the world.” It’s called the KY-O1L, and it’s built specifically to fit inside a business card holder. For that, the phone has been given the nickname of the “card phone.”

The phone itself comes in at 5.3mm thick and weighs a measly 47g, making it also one of the lightest devices around. On top of that, it boasts LTE connectivity and a 2.8-inch monochrome epaper display. Powering it all is a 380mAh battery, which should be more than enough for a phone with an epaper display.

Of course, there is some debate about whether or not this is really the thinnest phone out there. As The Verge notes, the 2016 Moto Z came in at only 5.2mm — though that excludes the camera bump. Before that, there was the Oppo R5, which came in at a tiny 4.9mm thick. That said, none of those phones offer the same adorable basic-ness as the KY-O1L.

Whether it is truly the thinnest phone or just one of them, it’s still an interesting device. The user interface offers everything a basic phone needs, though there is no app marketplace and as such, this is perhaps only a good choice for those that need something to make calls and text people, with the occasional news reading online. There’s also no camera so don’t expect to get any shots with this device.

The Kyocera KY-O1L comes at 32,000 yen, which equates to around $300. It’s also only available in Japan so don’t expect to get your hands on the phone anytime soon if you don’t live there. Even in Japan, it’s only available on the country’s NTT Docomo carrier.

Smaller phones may be a growing trend. Just recently Palm took the wraps off of a new smartphone that’s specifically aimed at reducing people’s addiction to their phones. It syncs to your primary phone, so you’ll get all your notifications and calls.

Editors' Recommendations

Christian de Looper
Christian’s interest in technology began as a child in Australia, when he stumbled upon a computer at a garage sale that he…
5 smartwatches you should buy instead of the Google Pixel Watch 2
The main workout screen on the Google Pixel Watch 2.

It's no secret that we weren't fans of the first Google Pixel Watch. However, Google heard all the criticism of its smartwatch debut and made amends, coming back with the Google Pixel Watch 2. Its second attempt was much better, adding strong performance, exceptional comfort, and a solid battery life to the fitness tracking of Fitbit. While it still has some issues, it's now a product we can recommend buying.

But just because it's now good doesn't mean there aren't alternatives to be had. There are a number of smartwatches that are better suited for those looking for a longer battery life, a focus on fitness, or a simpler experience. Some are just flat-out better. If you're considering buying a Google smartwatch, you need to know about these five smartwatches you should buy instead of the Google Pixel Watch 2.
Samsung Galaxy Watch 6

Read more
I compared Google and Samsung’s AI photo-editing tools. It’s not even close
A person holding the Samsung Galaxy S24 Ultra and Google Pixel 8 Pro.

The Samsung Galaxy S24 Ultra (left) and Google Pixel 8 Pro Andy Boxall / Digital Trends

Most phones nowadays are equipped with dual lens or triple lens camera systems and have powerful photo-editing tools baked natively into the software. This means most people have a compact photo-editing suite in their pocket every day.

Read more
The Galaxy Z Fold 6 and Flip 6 release date just leaked
Two Galaxy Z Fold 5 phones next to each other -- one is open and one is closed.

The Samsung Galaxy Z Fold 5 (left) and Galaxy Z Flip 5 Andrew Martonik / Digital Trends

Samsung is just months away from its next Unpacked event, where it will announce the previously teased Galaxy Ring alongside the next Galaxy Z Fold and Z Flip phones. The event, which could have the most number of devices launching at one Samsung event, is set a couple weeks ahead of last year's event.

Read more