This handset looks like the Redmi Note 4, but comes with more memory and storage, a MediaTek Helio X20 SoC, 13 MP main camera, as well as a generous 4,100 mAh battery. Its launch date is not official yet, but since it reached TENAA, we expect it to arrive by the end of the month.
http://www.notebookcheck.net/Xiaomi-Redmi-Note-4X-hits-TENAA.191062.0.html