Xiaomi Redmi 3X went official about a month ago, one day after the Redmi 3S announcement. The Redmi 3X is quite similar to its 3S sibling and the biggest difference is that it is intended for the China Unicom network. It comes in Gold and Silver colors only, instead of the Gold, Silver and Dark Grey of the 3S.
It was about time it came to the market and it now is available for preorder at Gearbest for $167.99. The preorder period ends in 3 days, on July 22nd. It is available in Golden color for now. The device comes with a 5-inch HD display, Snapdragon 430 chipset, 2GB RAM, 32GB of expandable storage, a large 4100mAh battery, 13MP rear camera with PDAF and 5MP front facing shooter. There’s a fingerprint sensor at the back as well.
As said before, the differences between 3S and 3X are minute and are limited mainly to size and weight, as the 3S measures 139.3 x 69.6 x 8.5mm whereas Redmi 3X measures 139.7 x 69.7 x 8.5mm and their weight is 144g and 146g respectively.
You can catch the preorder at Gearbest by visiting this page here until July 22. [source]