ZUK is a Lenovo-backed Chinese smartphone manufacturer which has unveiled one smartphone thus far. The company has announced the ZUK Z1 last month, and the device was actually announced in two variants. The first variant was announced in China, and it comes with ZUK's ZUI user interface installed on top of Android 5.1.1 Lollipop. The second variant was announced 10 days later, and is powered by the Cyanogen OS 12.1, this is the international variant of this smartphone. Aside from network bands and software, these two devices are completely identical.
That being said, the company has announced that the Cyanogen OS-powered variant of the ZUK Z1 will be available for purchase in mid-October. We're still not at that point, but ZUK has confirmed that the ZUK Z1 production version of Cyanogen OS for ZUK Z1 is now live. The Cyanogen OS is significantly different than ZUI, as most of you already know. I believe that most of you are already familiar with Cyanogen OS, but in case you're not, take a look at this article which explains the difference between Cyanogen OS and CynaogenMod. Anyhow, Cyanogen OS 12.1 brings a ton of customization options to ZUK Z1, it will let you customize icons, boot animations, your lockscreen, and you'll even be able to change hardware and software buttons according to the company. The Cyanogen OS 12.1 also brings a number of gestures to the ZUK Z1, and you'll get a 60FPS slow motion video capability, as well as a ton of additional camera settings / features (burst mode, exposure compensation, manual white balance, and so on).
If you take a look at the gallery down below, you'll notice screenshots taken off of Cyanogen OS 12.1-powered ZUK Z1 handset. Speaking of the phone, let's go over its specs real quick, shall we. The ZUK Z1 sports a 5.5-inch 1080p (1920 x 1080) display along with 3GB of RAM and 64GB of native storage. Qualcomm's Snapdragon 801 quad-core SoC fuels this smartphone, and an Adreno 330 GPU is here for graphics. The 13-megapixel snapper is located on the back of ZUK Z1, and a 5-megapixel shooter can be found up front. The 4,100mAh battery is also a part of this package, and the device measures 155.7 x 77.3 x 8.9mm, while it weighs 175 grams. The handset is expected to cost around $300 in Europe, but we still don't have any official info regarding that, stay tuned.