Lenovo Vibe X2 stars in hands-on photo shoot

Just yesterday the Lenovo Vibe X2 was spotted getting certified for sale in China by TENAA, the relevant authority for this purpose. That event yielded a few pictures of the device, but they were rather blurry and low quality.
Today a new set of images showing the Lenovo Vibe X2 has been uncovered in China, and these ones are of the hands-on type, showing the smartphone in all its glory.

Lenovo Vibe X2
The design of the Vibe X2 is much more clear in this set of pictures, as are the three mysterious metal contacts on the phone's back. They could be used for connecting an accessory or two.
As you have undoubtedly noticed from the images showing its sides, this handset comes with a pretty unique design feature. It looks like it's made up from three separate sheets of metal, each of a different color, which have been stacked on top of one another to form the X2's body. It's unclear if you'll be able to feel three individual bits when you touch the device, but it's an interesting effect nevertheless.
The Lenovo Vibe X2 will come in two versions, one with an octa-core CPU and the other with a 2.2 GHz dual-core part. Both will get a 5-inch 1080p touchscreen, 2GB of RAM, 32GB of built-in storage, a 13 MP rear camera with LED flash, and a 5 MP front snapper for selfies.
The new smartphone should be out in the third week of September.