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Mozilla means business with the mid-range KDDI Fx0 Firefox phone

japan kddi fx0 firefox phone news os
It isn’t every day you see a Firefox phone, and it’s even rarer to find one with decent specifications. Mozilla’s Firefox OS runs Web apps on mobile devices and sets the Firefox Web browser as default. A handful of Firefox OS devices are available in European, Asian, and South American countries, but so far not one of them has powerful specifications. Until now, that is. Japan’s KDDI Fx0 is a solid, mid-range Firefox smartphone.

Wireless carrier KDDI announced the Fx0 in conjunction with Mozilla just a few days before its Christmas Day launch date. The Fx0 is the first Firefox phone to support 4G LTE, sport a relatively fast Qualcomm processor, and feature an HD screen. While it’s certainly not the high-end monster phone Mozilla would have you believe, the Fx0 is the most powerful Firefox phone to date.

The Fx0 comes with a 4.7-inch IPS HD screen, and is powered by a 1.2 GHz Qualcomm Snapdragon 400 quad-core processor along with 1.5GB of RAM. Users will have 16GB of storage to fill up before popping in a MicroSDXC card into the phone for more space. An 8-megapixel back camera and a 2.1-megapixel front-facing camera round out the mid-range specs. The entire device gets its juice from a 2,370mAh battery.


Although a Firefox phone with mid-range specs is enough of a talking point already, the Fx0’s design is sure to turn some heads. The phone’s casing is completely transparent, giving you an unobstructed view of all the muted gold-brushed components. The circuitry, battery pack, and just about everything else is clearly visible. The result is a chic, mechanical device that looks like a fancy Swiss watch that lets you see its movement in action.

No price was mentioned, but if Mozilla sticks to its guns, the Fx0 should be a relatively affordable device when it arrives in the carrier’s online shop on December 25. Other shops and retailers will receive the phone on January 6, 2015.

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